DataSourceControl DataSourceControl DataSourceControl DataSourceControl Class

定義

作為控制項的基底類別,這些控制項代表與資料繫結控制項的資料來源。Serves as the base class for controls that represent data sources to data-bound controls.

public ref class DataSourceControl abstract : System::Web::UI::Control, System::ComponentModel::IListSource, System::Web::UI::IDataSource
[System.ComponentModel.Bindable(false)]
public abstract class DataSourceControl : System.Web.UI.Control, System.ComponentModel.IListSource, System.Web.UI.IDataSource
type DataSourceControl = class
    inherit Control
    interface IDataSource
    interface IListSource
Public MustInherit Class DataSourceControl
Inherits Control
Implements IDataSource, IListSource
繼承
DataSourceControlDataSourceControlDataSourceControlDataSourceControl
衍生
屬性
實作

範例

下列程式碼範例會示範類別如何擴充DataSourceControl類別。The following code example demonstrates how a class can extend the DataSourceControl class. CsvDataSource控制項代表儲存在 .csv 檔案中以逗號分隔的檔案資料。The CsvDataSource control represents comma-separated file data stored in a .csv file. 類別會提供自己GetView的、 GetViewNames和其他方法的實作為, 因為基類的執行無法運作。 CsvDataSourceThe CsvDataSource class provides its own implementations of the GetView, GetViewNames, and other methods, because the base class implementations are not functional.

using System;
using System.Collections;
using System.Data;
using System.IO;
using System.Security.Permissions;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

// The CsvDataSource is a data source control that retrieves its
// data from a comma-separated value file.
[AspNetHostingPermission(SecurityAction.Demand, Level=AspNetHostingPermissionLevel.Minimal)]
public class CsvDataSource : DataSourceControl
{
    public CsvDataSource() : base() {}

    // The comma-separated value file to retrieve data from.
    public string FileName {
        get {
            return ((CsvDataSourceView)this.GetView(String.Empty)).SourceFile;
        }
        set {
            // Only set if it is different.
            if ( ((CsvDataSourceView)this.GetView(String.Empty)).SourceFile != value) {
                ((CsvDataSourceView)this.GetView(String.Empty)).SourceFile = value;
                RaiseDataSourceChangedEvent(EventArgs.Empty);
            }
        }
    }

    // Do not add the column names as a data row. Infer columns if the CSV file does
    // not include column names.
    public bool IncludesColumnNames {
        get {
            return ((CsvDataSourceView)this.GetView(String.Empty)).IncludesColumnNames;
        }
        set {
            // Only set if it is different.
            if ( ((CsvDataSourceView)this.GetView(String.Empty)).IncludesColumnNames != value) {
                ((CsvDataSourceView)this.GetView(String.Empty)).IncludesColumnNames = value;
                RaiseDataSourceChangedEvent(EventArgs.Empty);
            }
        }
    }

    // Return a strongly typed view for the current data source control.
    private CsvDataSourceView view = null;
    protected override DataSourceView GetView(string viewName) {
        if (null == view) {
            view = new CsvDataSourceView(this, String.Empty);
        }
        return view;
    }
    // The ListSourceHelper class calls GetList, which
    // calls the DataSourceControl.GetViewNames method.
    // Override the original implementation to return
    // a collection of one element, the default view name.
    protected override ICollection GetViewNames() {
        ArrayList al = new ArrayList(1);
        al.Add(CsvDataSourceView.DefaultViewName);
        return al as ICollection;
    }
}

// The CsvDataSourceView class encapsulates the
// capabilities of the CsvDataSource data source control.
public class CsvDataSourceView : DataSourceView
{

    public CsvDataSourceView(IDataSource owner, string name) :base(owner, DefaultViewName) {

    }

    // The data source view is named. However, the CsvDataSource
    // only supports one view, so the name is ignored, and the
    // default name used instead.
    public static string DefaultViewName = "CommaSeparatedView";

    // The location of the .csv file.
    private string sourceFile = String.Empty;
    internal string SourceFile {
        get {
            return sourceFile;
        }
        set {
            // Use MapPath when the SourceFile is set, so that files local to the
            // current directory can be easily used.
            string mappedFileName = HttpContext.Current.Server.MapPath(value);
            sourceFile = mappedFileName;
        }
    }

    // Do not add the column names as a data row. Infer columns if the CSV file does
    // not include column names.
    private bool columns = false;
    internal bool IncludesColumnNames {
        get {
            return columns;
        }
        set {
            columns = value;
        }
    }

    // Get data from the underlying data source.
    // Build and return a DataView, regardless of mode.
    protected override IEnumerable ExecuteSelect(DataSourceSelectArguments selectArgs) {
        IEnumerable dataList = null;
        // Open the .csv file.
        if (File.Exists(this.SourceFile)) {
            DataTable data = new DataTable();

            // Open the file to read from.
            using (StreamReader sr = File.OpenText(this.SourceFile)) {
                // Parse the line
                string s = "";
                string[] dataValues;
                DataColumn col;

                // Do the following to add schema.
                dataValues = sr.ReadLine().Split(',');
                // For each token in the comma-delimited string, add a column
                // to the DataTable schema.
                foreach (string token in dataValues) {
                    col = new DataColumn(token,typeof(string));
                    data.Columns.Add(col);
                }

                // Do not add the first row as data if the CSV file includes column names.
                if (! IncludesColumnNames)
                    data.Rows.Add(CopyRowData(dataValues, data.NewRow()));

                // Do the following to add data.
                while ((s = sr.ReadLine()) != null) {
                    dataValues = s.Split(',');
                    data.Rows.Add(CopyRowData(dataValues, data.NewRow()));
                }
            }
            data.AcceptChanges();
            DataView dataView = new DataView(data);
            if (!string.IsNullOrEmpty(selectArgs.SortExpression)) {
                dataView.Sort = selectArgs.SortExpression;
            }
            dataList = dataView;
        }
        else {
            throw new System.Configuration.ConfigurationErrorsException("File not found, " + this.SourceFile);
        }

        if (null == dataList) {
            throw new InvalidOperationException("No data loaded from data source.");
        }

        return dataList;
    }

    private DataRow CopyRowData(string[] source, DataRow target) {
        try {
            for (int i = 0;i < source.Length;i++) {
                target[i] = source[i];
            }
        }
        catch (System.IndexOutOfRangeException) {
            // There are more columns in this row than
            // the original schema allows.  Stop copying
            // and return the DataRow.
            return target;
        }
        return target;
    }
    // The CsvDataSourceView does not currently
    // permit deletion. You can modify or extend
    // this sample to do so.
    public override bool CanDelete {
        get {
            return false;
        }
    }
    protected override int ExecuteDelete(IDictionary keys, IDictionary values)
    {
        throw new NotSupportedException();
    }
    // The CsvDataSourceView does not currently
    // permit insertion of a new record. You can
    // modify or extend this sample to do so.
    public override bool CanInsert {
        get {
            return false;
        }
    }
    protected override int ExecuteInsert(IDictionary values)
    {
        throw new NotSupportedException();
    }
    // The CsvDataSourceView does not currently
    // permit update operations. You can modify or
    // extend this sample to do so.
    public override bool CanUpdate {
        get {
            return false;
        }
    }
    protected override int ExecuteUpdate(IDictionary keys, IDictionary values, IDictionary oldValues)
    {
        throw new NotSupportedException();
    }
}
Imports System.Collections
Imports System.Data
Imports System.IO
Imports System.Security.Permissions
Imports System.Web
Imports System.Web.UI
Imports System.Web.UI.WebControls

Namespace Samples.AspNet.VB.Controls

' The CsvDataSource is a data source control that retrieves its
' data from a comma-separated value file.
<AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _
Public Class CsvDataSource
   Inherits DataSourceControl

   Public Sub New()
   End Sub

   ' The comma-separated value file to retrieve data from.
   Public Property FileName() As String
      Get
         Return CType(Me.GetView([String].Empty), CsvDataSourceView).SourceFile
      End Get
      Set
         ' Only set if it is different.
         If CType(Me.GetView([String].Empty), CsvDataSourceView).SourceFile <> value Then
            CType(Me.GetView([String].Empty), CsvDataSourceView).SourceFile = value
            RaiseDataSourceChangedEvent(EventArgs.Empty)
         End If
      End Set
   End Property

   ' Do not add the column names as a data row. Infer columns if the CSV file does
   ' not include column names.

   Public Property IncludesColumnNames() As Boolean
      Get
         Return CType(Me.GetView([String].Empty), CsvDataSourceView).IncludesColumnNames
      End Get
      Set
         ' Only set if it is different.
         If CType(Me.GetView([String].Empty), CsvDataSourceView).IncludesColumnNames <> value Then
            CType(Me.GetView([String].Empty), CsvDataSourceView).IncludesColumnNames = value
            RaiseDataSourceChangedEvent(EventArgs.Empty)
         End If
      End Set
   End Property


   ' Return a strongly typed view for the current data source control.
   Private view As CsvDataSourceView = Nothing

   Protected Overrides Function GetView(viewName As String) As DataSourceView
      If view Is Nothing Then
         view = New CsvDataSourceView(Me, String.Empty)
      End If
      Return view
   End Function 'GetView

   ' The ListSourceHelper class calls GetList, which
   ' calls the DataSourceControl.GetViewNames method.
   ' Override the original implementation to return
   ' a collection of one element, the default view name.
   Protected Overrides Function GetViewNames() As ICollection
      Dim al As New ArrayList(1)
      al.Add(CsvDataSourceView.DefaultViewName)
      Return CType(al, ICollection)
   End Function 'GetViewNames

End Class 'CsvDataSource


' The CsvDataSourceView class encapsulates the
' capabilities of the CsvDataSource data source control.

Public Class CsvDataSourceView
   Inherits DataSourceView

   Public Sub New(owner As IDataSource, name As String)
       MyBase.New(owner, DefaultViewName)
   End Sub

   ' The data source view is named. However, the CsvDataSource
   ' only supports one view, so the name is ignored, and the
   ' default name used instead.
   Public Shared DefaultViewName As String = "CommaSeparatedView"

   ' The location of the .csv file.
   Private aSourceFile As String = [String].Empty

   Friend Property SourceFile() As String
      Get
         Return aSourceFile
      End Get
      Set
         ' Use MapPath when the SourceFile is set, so that files local to the
         ' current directory can be easily used.
         Dim mappedFileName As String
         mappedFileName = HttpContext.Current.Server.MapPath(value)
         aSourceFile = mappedFileName
      End Set
   End Property

   ' Do not add the column names as a data row. Infer columns if the CSV file does
   ' not include column names.
   Private columns As Boolean = False

   Friend Property IncludesColumnNames() As Boolean
      Get
         Return columns
      End Get
      Set
         columns = value
      End Set
   End Property

   ' Get data from the underlying data source.
   ' Build and return a DataView, regardless of mode.
   Protected Overrides Function ExecuteSelect(selectArgs As DataSourceSelectArguments) _
    As System.Collections.IEnumerable
      Dim dataList As IEnumerable = Nothing
      ' Open the .csv file.
      If File.Exists(Me.SourceFile) Then
         Dim data As New DataTable()

         ' Open the file to read from.
         Dim sr As StreamReader = File.OpenText(Me.SourceFile)

         Try
            ' Parse the line
            Dim dataValues() As String
            Dim col As DataColumn

            ' Do the following to add schema.
            dataValues = sr.ReadLine().Split(","c)
            ' For each token in the comma-delimited string, add a column
            ' to the DataTable schema.
            Dim token As String
            For Each token In dataValues
               col = New DataColumn(token, System.Type.GetType("System.String"))
               data.Columns.Add(col)
            Next token

            ' Do not add the first row as data if the CSV file includes column names.
            If Not IncludesColumnNames Then
               data.Rows.Add(CopyRowData(dataValues, data.NewRow()))
            End If

            ' Do the following to add data.
            Dim s As String
            Do
               s = sr.ReadLine()
               If Not s Is Nothing Then
                   dataValues = s.Split(","c)
                   data.Rows.Add(CopyRowData(dataValues, data.NewRow()))
               End If
            Loop Until s Is Nothing

         Finally
            sr.Close()
         End Try

         data.AcceptChanges()
         Dim dataView As New DataView(data)
         If Not selectArgs.SortExpression Is String.Empty Then
             dataView.Sort = selectArgs.SortExpression
         End If
         dataList = dataView
      Else
         Throw New System.Configuration.ConfigurationErrorsException("File not found, " + Me.SourceFile)
      End If

      If dataList is Nothing Then
         Throw New InvalidOperationException("No data loaded from data source.")
      End If

      Return dataList
   End Function 'ExecuteSelect


   Private Function CopyRowData([source]() As String, target As DataRow) As DataRow
      Try
         Dim i As Integer
         For i = 0 To [source].Length - 1
            target(i) = [source](i)
         Next i
      Catch iore As IndexOutOfRangeException
         ' There are more columns in this row than
         ' the original schema allows.  Stop copying
         ' and return the DataRow.
         Return target
      End Try
      Return target
   End Function 'CopyRowData

   ' The CsvDataSourceView does not currently
   ' permit deletion. You can modify or extend
   ' this sample to do so.
   Public Overrides ReadOnly Property CanDelete() As Boolean
      Get
         Return False
      End Get
   End Property

   Protected Overrides Function ExecuteDelete(keys As IDictionary, values As IDictionary) As Integer
      Throw New NotSupportedException()
   End Function 'ExecuteDelete

   ' The CsvDataSourceView does not currently
   ' permit insertion of a new record. You can
   ' modify or extend this sample to do so.
   Public Overrides ReadOnly Property CanInsert() As Boolean
      Get
         Return False
      End Get
   End Property

   Protected Overrides Function ExecuteInsert(values As IDictionary) As Integer
      Throw New NotSupportedException()
   End Function 'ExecuteInsert

   ' The CsvDataSourceView does not currently
   ' permit update operations. You can modify or
   ' extend this sample to do so.
   Public Overrides ReadOnly Property CanUpdate() As Boolean
      Get
         Return False
      End Get
   End Property

   Protected Overrides Function ExecuteUpdate(keys As IDictionary, _
                                              values As IDictionary, _
                                              oldValues As IDictionary) As Integer
      Throw New NotSupportedException()
   End Function 'ExecuteUpdate

End Class 'CsvDataSourceView
End Namespace

下列程式碼範例示範如何在 Web form CsvDataSource中使用控制項。The following code example demonstrates how to use the CsvDataSource control in a Web form.

<%@ Page Language="C#" %>
<%@ Register Tagprefix="aspSample"
             Namespace="Samples.AspNet.CS.Controls" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <asp:gridview
          id="GridView1"
          runat="server"
          allowsorting="True"
          datasourceid="CsvDataSource1" />

      <aspSample:CsvDataSource
          id = "CsvDataSource1"
          runat = "server"
          filename = "sample.csv"
          includescolumnnames="True" />

    </form>
  </body>
</html>
<%@ Page Language="VB" %>
<%@ Register Tagprefix="aspSample"
             Namespace="Samples.AspNet.VB.Controls" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
        <form id="form1" runat="server">

            <asp:gridview
                id="GridView1"
                runat="server"
                allowsorting="True"
                datasourceid="CsvDataSource1" />

            <aspSample:CsvDataSource
                id = "CsvDataSource1"
                runat = "server"
                filename = "sample.csv"
                includescolumnnames="True" />

        </form>
    </body>
</html>

備註

ASP.NET 支援控制項資料系結架構, 可讓 Web 服務器控制項以一致的方式系結至資料。ASP.NET supports a control data-binding architecture that enables Web server controls to bind to data in a consistent fashion. 系結至資料的 Web 服務器控制項稱為資料繫結控制項, 而協助該系結的類別稱為資料來源控制項。Web server controls that bind to data are referred to as data-bound controls, and the classes that facilitate that binding are called data source controls. 資料來源控制項可以代表任何資料來源: 關係資料庫、檔案、資料流程、商務物件等等。Data source controls can represent any data source: a relational database, a file, a stream, a business object, and so on. 不論基礎資料的來源或格式為何, 資料來源控制項都會以一致的方式呈現資料繫結控制項的資料。Data source controls present data in a consistent way to data-bound controls, regardless of the source or format of the underlying data.

您可以使用 ASP.NET 所提供的資料來源控制項, 包括SqlDataSourceAccessDataSourceXmlDataSource, 以執行大部分的 Web 開發工作。You use the data source controls that are provided with ASP.NET, including SqlDataSource, AccessDataSource, and XmlDataSource, to perform most Web development tasks. 當您想要DataSourceControl執行自己的自訂資料來源控制項時, 可以使用基類。You use the base DataSourceControl class when you want to implement your own custom data source control.

雖然任何實作為IDataSource介面的類別都是資料來源控制項, 但大部分 ASP.NET 的資料來源控制項都會擴充抽象DataSourceControl類, 以提供IDataSource介面的基底執行。While any class that implements the IDataSource interface is a data source control, most ASP.NET data source controls extend the abstract DataSourceControl class, which provides a base implementation of the IDataSource interface. 類別也提供IListSource介面的執行, 可讓您以程式設計方式將資料來源控制項指派給資料繫結DataSource控制項的屬性, 並將資料以基本欄表的形式傳回給控制項。 DataSourceControlThe DataSourceControl class also provides an implementation of the IListSource interface, which enables you to programmatically assign the data source control to the DataSource property of a data-bound control and return data to the control as a basic list.

任何衍生自DataBoundControl類別的 ASP.NET 控制項都可以系結至資料來源控制項。Any ASP.NET control that derives from the DataBoundControl class can bind to a data source control. DataBoundControl當系結至資料來源控制項時, 資料系結會在執行時間自動執行。When a DataBoundControl is bound to a data source control, data binding is performed automatically at run time. 您也可以將資料來源控制項與公開DataSourceDataSourceID屬性的 ASP.NET 控制項搭配使用, 並支援基本資料系結, 但不DataBoundControl是衍生自。You can also use data source controls with ASP.NET controls that expose a DataSource or DataSourceID property and support basic data binding, but are not derived from DataBoundControl. 使用這些資料繫結控制項時, 您必須明確地呼叫DataBind方法。When using these data-bound controls, you must explicitly call the DataBind method. 如需資料系結的詳細資訊, 請參閱ASP.NET 資料存取內容對應For more information on data binding, see ASP.NET Data Access Content Map.

您可以將資料來源控制項想成是DataSourceControl物件和其相關聯的資料清單 (稱為資料來源視圖) 的組合。You can think of a data source control as the combination of the DataSourceControl object and its associated lists of data, called data source views. 每個資料清單都會以DataSourceView物件表示。Each list of data is represented by a DataSourceView object. 因為基礎資料存放區包含一或多個資料清單, DataSourceControl所以一定會與一或多個已命名DataSourceView的物件相關聯。Because the underlying data storage contains one or more lists of data, a DataSourceControl is always associated with one or more named DataSourceView objects. 介面會定義所有資料來源控制項用來與資料來源視圖互動的方法GetViewNames : 方法是用來列舉目前與資料GetView源控制項相關聯的資料來源視圖, 而IDataSource方法是用來依名稱抓取特定的資料來源 view 實例。The IDataSource interface defines the methods that all data source controls use to interact with data source views: the GetViewNames method is used to enumerate the data source views currently associated with the data source control, and the GetView method is used to retrieve a specific data source view instance by name.

您也可以將資料來源控制項視為呼叫端用來存取資料的兩個不同介面。You can also think of the data source control as two distinct interfaces that callers use to access data. 類別是網頁開發人員在開發 Web form 頁面時直接互動的介面, DataSourceView而類別則是資料繫結控制項和資料繫結控制項作者與之互動的介面。 DataSourceControlThe DataSourceControl class is the interface that page developers interact with directly when developing a Web Forms page, and the DataSourceView class is the interface that data-bound controls and data-bound control authors interact with. DataSourceView由於物件只能在執行時間使用, 因此, 資料來源控制項或資料來源視圖所保存的任何狀態都必須直接由資料來源控制項公開。Because the DataSourceView object is available only at run time, any state persisted for the data source control or data source view must be exposed directly by the data source control.

ASP.NET 資料來源控制項沒有視覺呈現;它們會實作為控制項, 讓您可以宣告方式建立它們, 並選擇性地允許它們參與狀態管理。There is no visual rendering of ASP.NET data source controls; they are implemented as controls so you can create them declaratively, and to optionally allow them to participate in state management. 因此, 資料來源控制項不支援視覺功能, 例如EnableTheming或。 SkinIDAs a result, data source controls do not support visual features such as EnableTheming or SkinID.

建構函式

DataSourceControl() DataSourceControl() DataSourceControl() DataSourceControl()

初始化 DataSourceControl 類別的新執行個體。Initializes a new instance of the DataSourceControl class.

屬性

Adapter Adapter Adapter Adapter

針對控制項取得瀏覽器的特定配置器。Gets the browser-specific adapter for the control.

(Inherited from Control)
AppRelativeTemplateSourceDirectory AppRelativeTemplateSourceDirectory AppRelativeTemplateSourceDirectory AppRelativeTemplateSourceDirectory

取得或設定包含了此控制項之 PageUserControl 物件的相對應用程式虛擬目錄。Gets or sets the application-relative virtual directory of the Page or UserControl object that contains this control.

(Inherited from Control)
BindingContainer BindingContainer BindingContainer BindingContainer

取得包含了此控制項之資料繫結的控制項。Gets the control that contains this control's data binding.

(Inherited from Control)
ChildControlsCreated ChildControlsCreated ChildControlsCreated ChildControlsCreated

取得值,指出是否已經建立伺服器控制項的子控制項。Gets a value that indicates whether the server control's child controls have been created.

(Inherited from Control)
ClientID ClientID ClientID ClientID

取得 ASP.NET 產生的伺服器控制項識別項。Gets the server control identifier generated by ASP.NET.

ClientIDMode ClientIDMode ClientIDMode ClientIDMode

這個屬性不會用於資料來源控制項。This property is not used for data source controls.

ClientIDSeparator ClientIDSeparator ClientIDSeparator ClientIDSeparator

取得字元值,表示在 ClientID 屬性中所使用的分隔字元。Gets a character value representing the separator character used in the ClientID property.

(Inherited from Control)
Context Context Context Context

取得與目前 Web 要求的伺服器控制項關聯的 HttpContext 物件。Gets the HttpContext object associated with the server control for the current Web request.

(Inherited from Control)
Controls Controls Controls Controls

取得 ControlCollection 物件,表示 UI 階層架構中指定之伺服器控制項的子控制項。Gets a ControlCollection object that represents the child controls for a specified server control in the UI hierarchy.

DataItemContainer DataItemContainer DataItemContainer DataItemContainer

如果命名容器實作 IDataItemContainer,則取得命名容器的參考。Gets a reference to the naming container if the naming container implements IDataItemContainer.

(Inherited from Control)
DataKeysContainer DataKeysContainer DataKeysContainer DataKeysContainer

如果命名容器實作 IDataKeysControl,則取得命名容器的參考。Gets a reference to the naming container if the naming container implements IDataKeysControl.

(Inherited from Control)
DesignMode DesignMode DesignMode DesignMode

取得值,指出控制項是否正用於設計介面上。Gets a value indicating whether a control is being used on a design surface.

(Inherited from Control)
EnableTheming EnableTheming EnableTheming EnableTheming

取得值,指出這個控制項是否支援佈景主題。Gets a value indicating whether this control supports themes.

EnableViewState EnableViewState EnableViewState EnableViewState

取得或設定值,該值表示伺服器控制項是否對要求的用戶端而言保持其檢視狀態,以及它包含的任何子控制項狀態。Gets or sets a value indicating whether the server control persists its view state, and the view state of any child controls it contains, to the requesting client.

(Inherited from Control)
Events Events Events Events

取得控制項事件處理常式委派 (Delegate) 的清單。Gets a list of event handler delegates for the control. 這個屬性是唯讀的。This property is read-only.

(Inherited from Control)
HasChildViewState HasChildViewState HasChildViewState HasChildViewState

取得值,指出目前伺服器控制項的子控制項是否有任何已儲存的檢視狀態設定。Gets a value indicating whether the current server control's child controls have any saved view-state settings.

(Inherited from Control)
IControlBuilderAccessor.ControlBuilder IControlBuilderAccessor.ControlBuilder IControlBuilderAccessor.ControlBuilder IControlBuilderAccessor.ControlBuilder

如需這個成員的說明,請參閱 ControlBuilderFor a description of this member, see ControlBuilder.

(Inherited from Control)
IControlDesignerAccessor.UserData IControlDesignerAccessor.UserData IControlDesignerAccessor.UserData IControlDesignerAccessor.UserData

如需這個成員的說明,請參閱 UserDataFor a description of this member, see UserData.

(Inherited from Control)
ID ID ID ID

取得或設定指派給伺服器控制項的程式設計識別項。Gets or sets the programmatic identifier assigned to the server control.

(Inherited from Control)
IDataBindingsAccessor.DataBindings IDataBindingsAccessor.DataBindings IDataBindingsAccessor.DataBindings IDataBindingsAccessor.DataBindings

如需這個成員的說明,請參閱 DataBindingsFor a description of this member, see DataBindings.

(Inherited from Control)
IDataBindingsAccessor.HasDataBindings IDataBindingsAccessor.HasDataBindings IDataBindingsAccessor.HasDataBindings IDataBindingsAccessor.HasDataBindings

如需這個成員的說明,請參閱 HasDataBindingsFor a description of this member, see HasDataBindings.

(Inherited from Control)
IdSeparator IdSeparator IdSeparator IdSeparator

取得用來分隔控制項識別項的字元。Gets the character used to separate control identifiers.

(Inherited from Control)
IExpressionsAccessor.Expressions IExpressionsAccessor.Expressions IExpressionsAccessor.Expressions IExpressionsAccessor.Expressions

如需這個成員的說明,請參閱 ExpressionsFor a description of this member, see Expressions.

(Inherited from Control)
IExpressionsAccessor.HasExpressions IExpressionsAccessor.HasExpressions IExpressionsAccessor.HasExpressions IExpressionsAccessor.HasExpressions

如需這個成員的說明,請參閱 HasExpressionsFor a description of this member, see HasExpressions.

(Inherited from Control)
IsChildControlStateCleared IsChildControlStateCleared IsChildControlStateCleared IsChildControlStateCleared

取得值,指出這個控制項中所包含的控制項是否有控制項狀態。Gets a value indicating whether controls contained within this control have control state.

(Inherited from Control)
IsTrackingViewState IsTrackingViewState IsTrackingViewState IsTrackingViewState

取得值,指出伺服器控制項是否正在儲存檢視狀態的變更。Gets a value that indicates whether the server control is saving changes to its view state.

(Inherited from Control)
IsViewStateEnabled IsViewStateEnabled IsViewStateEnabled IsViewStateEnabled

取得值,指出這個控制項是否已啟用檢視狀態。Gets a value indicating whether view state is enabled for this control.

(Inherited from Control)
LoadViewStateByID LoadViewStateByID LoadViewStateByID LoadViewStateByID

取得值,指出控制項是否依 ID (而不是索引) 參與載入其檢視狀態。Gets a value indicating whether the control participates in loading its view state by ID instead of index.

(Inherited from Control)
NamingContainer NamingContainer NamingContainer NamingContainer

取得伺服器控制項命名容器的參考,其建立唯一命名空間,在具有相同 ID 屬性值的伺服器控制項之間作區別。Gets a reference to the server control's naming container, which creates a unique namespace for differentiating between server controls with the same ID property value.

(Inherited from Control)
Page Page Page Page

取得含有伺服器控制項的 Page 執行個體的參考。Gets a reference to the Page instance that contains the server control.

(Inherited from Control)
Parent Parent Parent Parent

在網頁控制階層架構中取得伺服器控制項之父控制項的參考。Gets a reference to the server control's parent control in the page control hierarchy.

(Inherited from Control)
RenderingCompatibility RenderingCompatibility RenderingCompatibility RenderingCompatibility

取得值,這個值會指定將與呈現 HTML 相容的 ASP.NET 版本。Gets a value that specifies the ASP.NET version that rendered HTML will be compatible with.

(Inherited from Control)
Site Site Site Site

當呈現在設計介面上時,取得裝載目前控制項之容器的資訊。Gets information about the container that hosts the current control when rendered on a design surface.

(Inherited from Control)
SkinID SkinID SkinID SkinID

取得套用至 DataSourceControl 控制項的面板。Gets the skin to apply to the DataSourceControl control.

TemplateControl TemplateControl TemplateControl TemplateControl

取得或設定包含了此控制項之樣板的參考。Gets or sets a reference to the template that contains this control.

(Inherited from Control)
TemplateSourceDirectory TemplateSourceDirectory TemplateSourceDirectory TemplateSourceDirectory

取得包含目前伺服器控制項的 PageUserControl 的虛擬目錄。Gets the virtual directory of the Page or UserControl that contains the current server control.

(Inherited from Control)
UniqueID UniqueID UniqueID UniqueID

取得伺服器控制項唯一的、符合階層架構的識別項。Gets the unique, hierarchically qualified identifier for the server control.

(Inherited from Control)
ValidateRequestMode ValidateRequestMode ValidateRequestMode ValidateRequestMode

取得或設定值,指出控制項是否對來自瀏覽器的用戶端輸入檢查潛在的危險值。Gets or sets a value that indicates whether the control checks client input from the browser for potentially dangerous values.

(Inherited from Control)
ViewState ViewState ViewState ViewState

取得狀態資訊的字典,允許您在相同網頁的多個要求之間,儲存和還原伺服器控制項的檢視狀態。Gets a dictionary of state information that allows you to save and restore the view state of a server control across multiple requests for the same page.

(Inherited from Control)
ViewStateIgnoresCase ViewStateIgnoresCase ViewStateIgnoresCase ViewStateIgnoresCase

取得值,指出 StateBag 物件是否不區分大小寫。Gets a value that indicates whether the StateBag object is case-insensitive.

(Inherited from Control)
ViewStateMode ViewStateMode ViewStateMode ViewStateMode

取得或設定這個控制項的檢視狀態模式。Gets or sets the view-state mode of this control.

(Inherited from Control)
Visible Visible Visible Visible

取得或設定值,指出是否視覺化顯示控制項。Gets or sets a value indicating whether the control is visually displayed.

方法

AddedControl(Control, Int32) AddedControl(Control, Int32) AddedControl(Control, Int32) AddedControl(Control, Int32)

在子控制項加入 Control 物件的 Controls 集合後呼叫。Called after a child control is added to the Controls collection of the Control object.

(Inherited from Control)
AddParsedSubObject(Object) AddParsedSubObject(Object) AddParsedSubObject(Object) AddParsedSubObject(Object)

通知伺服器控制項,XML 或 HTML 項目已剖析,並將項目加入伺服器控制項的 ControlCollection 物件中。Notifies the server control that an element, either XML or HTML, was parsed, and adds the element to the server control's ControlCollection object.

(Inherited from Control)
ApplyStyleSheetSkin(Page) ApplyStyleSheetSkin(Page) ApplyStyleSheetSkin(Page) ApplyStyleSheetSkin(Page)

將頁面樣式表中所定義的樣式屬性套用至控制項。Applies the style properties that are defined in the page style sheet to the control.

BeginRenderTracing(TextWriter, Object) BeginRenderTracing(TextWriter, Object) BeginRenderTracing(TextWriter, Object) BeginRenderTracing(TextWriter, Object)

開始進行轉譯資料的設計階段追蹤。Begins design-time tracing of rendering data.

(Inherited from Control)
BuildProfileTree(String, Boolean) BuildProfileTree(String, Boolean) BuildProfileTree(String, Boolean) BuildProfileTree(String, Boolean)

收集伺服器控制項的相關資訊,並在頁面啟用追蹤時將此資訊傳遞至 Trace 屬性以顯示之。Gathers information about the server control and delivers it to the Trace property to be displayed when tracing is enabled for the page.

(Inherited from Control)
ClearCachedClientID() ClearCachedClientID() ClearCachedClientID() ClearCachedClientID()

將快取的 ClientID 值設定為 nullSets the cached ClientID value to null.

(Inherited from Control)
ClearChildControlState() ClearChildControlState() ClearChildControlState() ClearChildControlState()

刪除伺服器控制項之子控制項的控制項狀態資訊。Deletes the control-state information for the server control's child controls.

(Inherited from Control)
ClearChildState() ClearChildState() ClearChildState() ClearChildState()

刪除所有伺服器控制項之子控制項的檢視狀態和控制項狀態資訊。Deletes the view-state and control-state information for all the server control's child controls.

(Inherited from Control)
ClearChildViewState() ClearChildViewState() ClearChildViewState() ClearChildViewState()

刪除所有伺服器控制項之子控制項的檢視狀態資訊。Deletes the view-state information for all the server control's child controls.

(Inherited from Control)
ClearEffectiveClientIDMode() ClearEffectiveClientIDMode() ClearEffectiveClientIDMode() ClearEffectiveClientIDMode()

將目前的控制項執行個體和任何子控制項的 ClientIDMode 屬性設定為 InheritSets the ClientIDMode property of the current control instance and of any child controls to Inherit.

(Inherited from Control)
CreateChildControls() CreateChildControls() CreateChildControls() CreateChildControls()

由 ASP.NET 網頁架構呼叫,通知使用組合實作的伺服器控制項來建立所包含的任何子控制項,以準備回傳或呈現。Called by the ASP.NET page framework to notify server controls that use composition-based implementation to create any child controls they contain in preparation for posting back or rendering.

(Inherited from Control)
CreateControlCollection() CreateControlCollection() CreateControlCollection() CreateControlCollection()

建立儲存子控制項的集合。Creates a collection to store child controls.

DataBind() DataBind() DataBind() DataBind()

將資料來源繫結至叫用的伺服器控制項和它的全部子控制項。Binds a data source to the invoked server control and all its child controls.

(Inherited from Control)
DataBind(Boolean) DataBind(Boolean) DataBind(Boolean) DataBind(Boolean)

使用會引發 DataBinding 事件的選項,繫結資料來源至叫用的伺服器控制項及其所有子控制項。Binds a data source to the invoked server control and all its child controls with an option to raise the DataBinding event.

(Inherited from Control)
DataBindChildren() DataBindChildren() DataBindChildren() DataBindChildren()

繫結資料來源至伺服器控制項的子控制項。Binds a data source to the server control's child controls.

(Inherited from Control)
Dispose() Dispose() Dispose() Dispose()

啟用伺服器控制項,在它從記憶體釋放之前執行最後清除。Enables a server control to perform final clean up before it is released from memory.

(Inherited from Control)
EndRenderTracing(TextWriter, Object) EndRenderTracing(TextWriter, Object) EndRenderTracing(TextWriter, Object) EndRenderTracing(TextWriter, Object)

結束轉譯資料的設計階段追蹤。Ends design-time tracing of rendering data.

(Inherited from Control)
EnsureChildControls() EnsureChildControls() EnsureChildControls() EnsureChildControls()

判斷伺服器控制項是否包含子控制項。Determines whether the server control contains child controls. 如果不包含,則建立子控制項。If it does not, it creates child controls.

(Inherited from Control)
EnsureID() EnsureID() EnsureID() EnsureID()

為尚未指定識別項的控制項,建立識別項。Creates an identifier for controls that do not have an identifier assigned.

(Inherited from Control)
Equals(Object) Equals(Object) Equals(Object) Equals(Object)

判斷指定的物件是否等於目前的物件。Determines whether the specified object is equal to the current object.

(Inherited from Object)
FindControl(String) FindControl(String) FindControl(String) FindControl(String)

在目前命名容器搜尋具有指定 id 參數的伺服器控制項。Searches the current naming container for a server control with the specified id parameter.

FindControl(String, Int32) FindControl(String, Int32) FindControl(String, Int32) FindControl(String, Int32)

使用指定的 id 和有助於搜尋之 pathOffset 參數中所指定的整數,在目前的命名容器中搜尋伺服器控制項。Searches the current naming container for a server control with the specified id and an integer, specified in the pathOffset parameter, which aids in the search. 您不應該覆寫這個版本的 FindControl 方法。You should not override this version of the FindControl method.

(Inherited from Control)
Focus() Focus() Focus() Focus()

設定控制項的輸入焦點。Sets input focus to the control.

GetDesignModeState() GetDesignModeState() GetDesignModeState() GetDesignModeState()

取得控制項的設計階段資料。Gets design-time data for a control.

(Inherited from Control)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

做為預設雜湊函式。Serves as the default hash function.

(Inherited from Object)
GetRouteUrl(Object) GetRouteUrl(Object) GetRouteUrl(Object) GetRouteUrl(Object)

取得會對應於一組路由參數的 URL。Gets the URL that corresponds to a set of route parameters.

(Inherited from Control)
GetRouteUrl(RouteValueDictionary) GetRouteUrl(RouteValueDictionary) GetRouteUrl(RouteValueDictionary) GetRouteUrl(RouteValueDictionary)

取得會對應於一組路由參數的 URL。Gets the URL that corresponds to a set of route parameters.

(Inherited from Control)
GetRouteUrl(String, Object) GetRouteUrl(String, Object) GetRouteUrl(String, Object) GetRouteUrl(String, Object)

取得 URL,此 URL 對應於一組路由參數及一個路由名稱。Gets the URL that corresponds to a set of route parameters and a route name.

(Inherited from Control)
GetRouteUrl(String, RouteValueDictionary) GetRouteUrl(String, RouteValueDictionary) GetRouteUrl(String, RouteValueDictionary) GetRouteUrl(String, RouteValueDictionary)

取得 URL,此 URL 對應於一組路由參數及一個路由名稱。Gets the URL that corresponds to a set of route parameters and a route name.

(Inherited from Control)
GetType() GetType() GetType() GetType()

取得目前執行個體的 TypeGets the Type of the current instance.

(Inherited from Object)
GetUniqueIDRelativeTo(Control) GetUniqueIDRelativeTo(Control) GetUniqueIDRelativeTo(Control) GetUniqueIDRelativeTo(Control)

傳回指定之控制項 UniqueID 屬性的前置部分。Returns the prefixed portion of the UniqueID property of the specified control.

(Inherited from Control)
GetView(String) GetView(String) GetView(String) GetView(String)

取得與資料來源控制項關聯的具名資料來源檢視。Gets the named data source view associated with the data source control.

GetViewNames() GetViewNames() GetViewNames() GetViewNames()

取得名稱集合,表示與 DataSourceView 控制項關聯的 DataSourceControl 物件清單。Gets a collection of names, representing the list of DataSourceView objects associated with the DataSourceControl control.

HasControls() HasControls() HasControls() HasControls()

判斷伺服器控制項是否包含任何子控制項。Determines if the server control contains any child controls.

HasEvents() HasEvents() HasEvents() HasEvents()

傳回值,指出控制項或任何子控制項的事件是否已註冊。Returns a value indicating whether events are registered for the control or any child controls.

(Inherited from Control)
IsLiteralContent() IsLiteralContent() IsLiteralContent() IsLiteralContent()

判斷伺服器控制項是否只儲存常值內容。Determines if the server control holds only literal content.

(Inherited from Control)
LoadControlState(Object) LoadControlState(Object) LoadControlState(Object) LoadControlState(Object)

SaveControlState() 方法所儲存的上一頁要求中,還原控制項狀態資訊。Restores control-state information from a previous page request that was saved by the SaveControlState() method.

(Inherited from Control)
LoadViewState(Object) LoadViewState(Object) LoadViewState(Object) LoadViewState(Object)

將檢視狀態資訊從 SaveViewState() 方法所儲存的上一個網頁要求還原。Restores view-state information from a previous page request that was saved by the SaveViewState() method.

(Inherited from Control)
MapPathSecure(String) MapPathSecure(String) MapPathSecure(String) MapPathSecure(String)

擷取虛擬絕對路徑或相對路徑所對應至的實體路徑。Retrieves the physical path that a virtual path, either absolute or relative, maps to.

(Inherited from Control)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

建立目前 Object 的淺層複本 (Shallow Copy)。Creates a shallow copy of the current Object.

(Inherited from Object)
OnBubbleEvent(Object, EventArgs) OnBubbleEvent(Object, EventArgs) OnBubbleEvent(Object, EventArgs) OnBubbleEvent(Object, EventArgs)

決定伺服器控制項的事件是否要在頁面的 UI 伺服器控制項階層架構中向上傳遞。Determines whether the event for the server control is passed up the page's UI server control hierarchy.

(Inherited from Control)
OnDataBinding(EventArgs) OnDataBinding(EventArgs) OnDataBinding(EventArgs) OnDataBinding(EventArgs)

引發 DataBinding 事件。Raises the DataBinding event.

(Inherited from Control)
OnInit(EventArgs) OnInit(EventArgs) OnInit(EventArgs) OnInit(EventArgs)

引發 Init 事件。Raises the Init event.

(Inherited from Control)
OnLoad(EventArgs) OnLoad(EventArgs) OnLoad(EventArgs) OnLoad(EventArgs)

引發 Load 事件。Raises the Load event.

(Inherited from Control)
OnPreRender(EventArgs) OnPreRender(EventArgs) OnPreRender(EventArgs) OnPreRender(EventArgs)

引發 PreRender 事件。Raises the PreRender event.

(Inherited from Control)
OnUnload(EventArgs) OnUnload(EventArgs) OnUnload(EventArgs) OnUnload(EventArgs)

引發 Unload 事件。Raises the Unload event.

(Inherited from Control)
OpenFile(String) OpenFile(String) OpenFile(String) OpenFile(String)

取得用來讀取檔案的 StreamGets a Stream used to read a file.

(Inherited from Control)
RaiseBubbleEvent(Object, EventArgs) RaiseBubbleEvent(Object, EventArgs) RaiseBubbleEvent(Object, EventArgs) RaiseBubbleEvent(Object, EventArgs)

指派事件的任何來源和它的資訊至控制項的父控制項。Assigns any sources of the event and its information to the control's parent.

(Inherited from Control)
RaiseDataSourceChangedEvent(EventArgs) RaiseDataSourceChangedEvent(EventArgs) RaiseDataSourceChangedEvent(EventArgs) RaiseDataSourceChangedEvent(EventArgs)

引發 DataSourceChanged 事件。Raises the DataSourceChanged event.

RemovedControl(Control) RemovedControl(Control) RemovedControl(Control) RemovedControl(Control)

Control 物件的 Controls 集合中移除子控制項之後呼叫。Called after a child control is removed from the Controls collection of the Control object.

(Inherited from Control)
Render(HtmlTextWriter) Render(HtmlTextWriter) Render(HtmlTextWriter) Render(HtmlTextWriter)

將伺服器控制項內容傳送到提供的 HtmlTextWriter 物件,以寫入要在用戶端上呈現的內容。Sends server control content to a provided HtmlTextWriter object, which writes the content to be rendered on the client.

(Inherited from Control)
RenderChildren(HtmlTextWriter) RenderChildren(HtmlTextWriter) RenderChildren(HtmlTextWriter) RenderChildren(HtmlTextWriter)

輸出伺服器控制項之子控制項的內容至提供的 HtmlTextWriter 物件,這個物件會寫入用戶端上所要呈現的內容。Outputs the content of a server control's children to a provided HtmlTextWriter object, which writes the content to be rendered on the client.

(Inherited from Control)
RenderControl(HtmlTextWriter) RenderControl(HtmlTextWriter) RenderControl(HtmlTextWriter) RenderControl(HtmlTextWriter)

將伺服器控制項內容輸出至提供的 HtmlTextWriter 物件,並在啟用追蹤時儲存控制項的追蹤資訊。Outputs server control content to a provided HtmlTextWriter object and stores tracing information about the control if tracing is enabled.

RenderControl(HtmlTextWriter, ControlAdapter) RenderControl(HtmlTextWriter, ControlAdapter) RenderControl(HtmlTextWriter, ControlAdapter) RenderControl(HtmlTextWriter, ControlAdapter)

使用提供的 HtmlTextWriter 物件,輸出伺服器控制項內容至提供的 ControlAdapter 物件。Outputs server control content to a provided HtmlTextWriter object using a provided ControlAdapter object.

(Inherited from Control)
ResolveAdapter() ResolveAdapter() ResolveAdapter() ResolveAdapter()

取得負責呈現指定之控制項的控制項配置器。Gets the control adapter responsible for rendering the specified control.

(Inherited from Control)
ResolveClientUrl(String) ResolveClientUrl(String) ResolveClientUrl(String) ResolveClientUrl(String)

取得瀏覽器可使用的 URL。Gets a URL that can be used by the browser.

(Inherited from Control)
ResolveUrl(String) ResolveUrl(String) ResolveUrl(String) ResolveUrl(String)

將 URL 轉換為要求用戶端可使用的 URL。Converts a URL into one that is usable on the requesting client.

(Inherited from Control)
SaveControlState() SaveControlState() SaveControlState() SaveControlState()

儲存頁面回傳至伺服器以來,所發生的任何伺服器控制項狀態變更。Saves any server control state changes that have occurred since the time the page was posted back to the server.

(Inherited from Control)
SaveViewState() SaveViewState() SaveViewState() SaveViewState()

儲存自頁面回傳至伺服器以來所發生的任何伺服器控制項檢視狀態變更。Saves any server control view-state changes that have occurred since the time the page was posted back to the server.

(Inherited from Control)
SetDesignModeState(IDictionary) SetDesignModeState(IDictionary) SetDesignModeState(IDictionary) SetDesignModeState(IDictionary)

設定控制項的設計階段資料。Sets design-time data for a control.

(Inherited from Control)
SetRenderMethodDelegate(RenderMethod) SetRenderMethodDelegate(RenderMethod) SetRenderMethodDelegate(RenderMethod) SetRenderMethodDelegate(RenderMethod)

指定事件處理常式委派,以呈現伺服器控制項及其內容至其父控制項。Assigns an event handler delegate to render the server control and its content into its parent control.

(Inherited from Control)
SetTraceData(Object, Object) SetTraceData(Object, Object) SetTraceData(Object, Object) SetTraceData(Object, Object)

使用追蹤資料機碼和追蹤資料值,設定設計階段期間追蹤呈現資料的追蹤資料。Sets trace data for design-time tracing of rendering data, using the trace data key and the trace data value.

(Inherited from Control)
SetTraceData(Object, Object, Object) SetTraceData(Object, Object, Object) SetTraceData(Object, Object, Object) SetTraceData(Object, Object, Object)

使用追蹤的物體、追蹤資料機碼和追蹤資料值,設定設計階段期間追蹤呈現資料的追蹤資料。Sets trace data for design-time tracing of rendering data, using the traced object, the trace data key, and the trace data value.

(Inherited from Control)
ToString() ToString() ToString() ToString()

傳回代表目前物件的字串。Returns a string that represents the current object.

(Inherited from Object)
TrackViewState() TrackViewState() TrackViewState() TrackViewState()

導致對伺服器控制項的檢視狀態變更的追蹤 (Tracking),以便它們能夠儲存於伺服器控制項的 StateBag 物件。Causes tracking of view-state changes to the server control so they can be stored in the server control's StateBag object. 這個物件可透過 ViewState 屬性存取。This object is accessible through the ViewState property.

(Inherited from Control)

明確介面實作

IControlDesignerAccessor.GetDesignModeState() IControlDesignerAccessor.GetDesignModeState() IControlDesignerAccessor.GetDesignModeState() IControlDesignerAccessor.GetDesignModeState()

如需這個成員的說明,請參閱 GetDesignModeState()For a description of this member, see GetDesignModeState().

(Inherited from Control)
IControlDesignerAccessor.SetDesignModeState(IDictionary) IControlDesignerAccessor.SetDesignModeState(IDictionary) IControlDesignerAccessor.SetDesignModeState(IDictionary) IControlDesignerAccessor.SetDesignModeState(IDictionary)

如需這個成員的說明,請參閱 SetDesignModeState(IDictionary)For a description of this member, see SetDesignModeState(IDictionary).

(Inherited from Control)
IControlDesignerAccessor.SetOwnerControl(Control) IControlDesignerAccessor.SetOwnerControl(Control) IControlDesignerAccessor.SetOwnerControl(Control) IControlDesignerAccessor.SetOwnerControl(Control)

如需這個成員的說明,請參閱 SetOwnerControl(Control)For a description of this member, see SetOwnerControl(Control).

(Inherited from Control)
IDataSource.DataSourceChanged IDataSource.DataSourceChanged IDataSource.DataSourceChanged IDataSource.DataSourceChanged

當資料來源控制項變更的方式會影響資料繫結控制項時發生。Occurs when a data source control has changed in a way that affects data-bound controls.

IDataSource.GetView(String) IDataSource.GetView(String) IDataSource.GetView(String) IDataSource.GetView(String)

取得與 DataSourceView 控制項關聯的具名 DataSourceControl 物件。Gets the named DataSourceView object associated with the DataSourceControl control. 有些資料來源控制項只支援一個檢視,有些則可支援多個檢視。Some data source controls support only one view, while others support more than one.

IDataSource.GetViewNames() IDataSource.GetViewNames() IDataSource.GetViewNames() IDataSource.GetViewNames()

取得名稱集合,表示與 DataSourceView 控制項關聯的 DataSourceControl 物件清單。Gets a collection of names, representing the list of DataSourceView objects associated with the DataSourceControl control.

IListSource.ContainsListCollection IListSource.ContainsListCollection IListSource.ContainsListCollection IListSource.ContainsListCollection

指示資料來源控制項是否與一個或多個資料清單產生關聯。Indicates whether the data source control is associated with one or more lists of data.

IListSource.GetList() IListSource.GetList() IListSource.GetList() IListSource.GetList()

取得可以當做資料清單來源使用的資料來源控制項清單。Gets a list of data source controls that can be used as sources of lists of data.

IParserAccessor.AddParsedSubObject(Object) IParserAccessor.AddParsedSubObject(Object) IParserAccessor.AddParsedSubObject(Object) IParserAccessor.AddParsedSubObject(Object)

如需這個成員的說明,請參閱 AddParsedSubObject(Object)For a description of this member, see AddParsedSubObject(Object).

(Inherited from Control)

事件

DataBinding DataBinding DataBinding DataBinding

發生於伺服器控制項繫結至資料來源時。Occurs when the server control binds to a data source.

(Inherited from Control)
Disposed Disposed Disposed Disposed

發生於伺服器控制項從記憶體釋放時,這是在要求 ASP.NET 網頁時,伺服器控制項生命週期的最後階段。Occurs when a server control is released from memory, which is the last stage of the server control lifecycle when an ASP.NET page is requested.

(Inherited from Control)
Init Init Init Init

發生於初始化伺服器控制項時,是其生命週期中的第一個步驟。Occurs when the server control is initialized, which is the first step in its lifecycle.

(Inherited from Control)
Load Load Load Load

發生於載入伺服器控制項至 Page 物件時。Occurs when the server control is loaded into the Page object.

(Inherited from Control)
PreRender PreRender PreRender PreRender

Control 物件載入之後但在呈現之前發生。Occurs after the Control object is loaded but prior to rendering.

(Inherited from Control)
Unload Unload Unload Unload

發生於伺服器控制項從記憶體卸載時。Occurs when the server control is unloaded from memory.

(Inherited from Control)

擴充方法

FindDataSourceControl(Control) FindDataSourceControl(Control) FindDataSourceControl(Control) FindDataSourceControl(Control)

傳回與指定之控制項的資料控制項相關聯的資料來源。Returns the data source that is associated with the data control for the specified control.

FindFieldTemplate(Control, String) FindFieldTemplate(Control, String) FindFieldTemplate(Control, String) FindFieldTemplate(Control, String)

傳回在指定之控制項的命名容器中所指定資料行的欄位樣板。Returns the field template for the specified column in the specified control's naming container.

FindMetaTable(Control) FindMetaTable(Control) FindMetaTable(Control) FindMetaTable(Control)

傳回包含資料控制項的中繼資料表物件。Returns the metatable object for the containing data control.

GetDefaultValues(IDataSource) GetDefaultValues(IDataSource) GetDefaultValues(IDataSource) GetDefaultValues(IDataSource)

取得所指定資料來源的預設值集合。Gets the collection of the default values for the specified data source.

GetMetaTable(IDataSource) GetMetaTable(IDataSource) GetMetaTable(IDataSource) GetMetaTable(IDataSource)

取得所指定資料來源物件中的資料表中繼資料。Gets the metadata for a table in the specified data source object.

TryGetMetaTable(IDataSource, MetaTable) TryGetMetaTable(IDataSource, MetaTable) TryGetMetaTable(IDataSource, MetaTable) TryGetMetaTable(IDataSource, MetaTable)

判斷資料表中繼資料是否可供使用。Determines whether table metadata is available.

適用於

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