DynamicFilter 类
定义
显示用于使用指定列筛选表行的 UI。Displays the UI for filtering table rows using a specified column.
public ref class DynamicFilter : System::Web::UI::Control
public ref class DynamicFilter : System::Web::UI::Control, System::Web::DynamicData::IFilterExpressionProvider
public class DynamicFilter : System.Web.UI.Control
public class DynamicFilter : System.Web.UI.Control, System.Web.DynamicData.IFilterExpressionProvider
type DynamicFilter = class
inherit Control
type DynamicFilter = class
inherit Control
interface IFilterExpressionProvider
Public Class DynamicFilter
Inherits Control
Public Class DynamicFilter
Inherits Control
Implements IFilterExpressionProvider
- 继承
- 实现
示例
此位置提供了包含源代码的 Visual Studio 项目: 下载。A Visual Studio project with source code is available at this location: Download.
下面的示例使用默认的 ForeignKey 筛选器模板创建用于按 ProductCategory 外键列筛选 Products 表行的 UI。The following examples use the default ForeignKey.ascx filter template to create the UI for filtering the Products table rows by the ProductCategory foreign-key column. 当用户选择 ProductCategory 值时,将仅显示包含该值的行。When the user selects a ProductCategory value, only the rows that contain that value are displayed.
该示例需要以下各项:The example requires the following:
- 动态数据网站或动态数据 Web 应用程序。A Dynamic Data Web site or a Dynamic Data Web application. 这使您可以创建
AdventureWorksLTDataContext数据库的数据上下文,并为要访问的表创建类。This enables you to create theAdventureWorksLTDataContextdata context for the database and to create the classes for the tables to access. 有关详细信息,请参阅Walkthrough: Creating a New Dynamic Data Web Site using Scaffolding。For more information, seeWalkthrough: Creating a New Dynamic Data Web Site using Scaffolding.
<%@ Page Language="C#" MasterPageFile="~/Site.master"
CodeFile="DynamicFilter.aspx.cs" Inherits="ForeignKeyFilter" %>
<%@ Register src="~/DynamicData/Content/GridViewPager.ascx" tagname="GridViewPager" tagprefix="asp" %>
<asp:Content ID="headContent" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<asp:DynamicDataManager ID="DynamicDataManager1" runat="server" AutoLoadForeignKeys="true" />
<h2 class="DDSubHeader"><%= table.DisplayName%> ForeignKey filter</h2>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:ValidationSummary ID="ValidationSummary1" runat="server"
EnableClientScript="true"
HeaderText="List of validation errors" />
<asp:DynamicValidator runat="server" ID="GridViewValidator"
ControlToValidate="GridView1" Display="None" />
<!-- Show that the filter selection
is retained after a post-back -->
<asp:Button ID="Button1" runat="server" Text="Cause Postback" />
<span></span>The filter selection is retained after a postback.</span>
<br />
<!-- Set the DynamicFilter control attributes. -->
Select Category: <asp:DynamicFilter runat="server" ID="CategoryFilter"
DataField="ProductCategory" FilterUIHint="ForeignKey"
OnFilterChanged="OnFilterSelectedIndexChanged" /><br />
<!-- Data-bound control that shows the filtered table rows. -->
<asp:GridView ID="GridView1" runat="server" DataSourceID="GridDataSource"
EnablePersistedSelection="true" PageSize="5"
AllowPaging="True" AllowSorting="True" CssClass="DDGridView">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="DeleteLinkButton" runat="server" CommandName="Delete"
CausesValidation="true" Text="Delete"
OnClientClick='return confirm("Are you sure you want to delete this item?");'
/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerStyle CssClass="footer"/>
<PagerTemplate>
<asp:GridViewPager runat="server" />
</PagerTemplate>
<EmptyDataTemplate>
There are currently no items in this table.
</EmptyDataTemplate>
</asp:GridView>
<!-- The provider that connects to the database -->
<asp:LinqDataSource ID="GridDataSource" runat="server"
EnableDelete="true"
ContextTypeName="AdventureWorksLTDataContext"
TableName="Products">
</asp:LinqDataSource>
<!-- The control that handles the details for querying
the database, after a user's filtering action -->
<asp:QueryExtender ID="QueryBlock1" TargetControlID="GridDataSource"
runat="server">
<asp:DynamicFilterExpression ControlID="CategoryFilter" />
</asp:QueryExtender>
</ContentTemplate>
</asp:UpdatePanel>
</asp:Content>
<%@ Page Language="VB" MasterPageFile="~/Site.master"
AutoEventWireup="true" CodeFile="DynamicFilter.aspx.vb"
Inherits="ForeignKeyFilter" %>
<%@ Register src="~/DynamicData/Content/GridViewPager.ascx" tagname="GridViewPager" tagprefix="asp" %>
<asp:Content ID="headContent" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<asp:DynamicDataManager ID="DynamicDataManager1" runat="server" AutoLoadForeignKeys="true" />
<h2 class="DDSubHeader"><%= table.DisplayName%> ForeignKey filter</h2>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:ValidationSummary ID="ValidationSummary1" runat="server"
EnableClientScript="true"
HeaderText="List of validation errors" />
<asp:DynamicValidator runat="server" ID="GridViewValidator"
ControlToValidate="GridView1" Display="None" />
<!-- Show that the filter selection
is retained after a post-back -->
<asp:Button ID="Button1" runat="server" Text="Cause Postback" />
<span></span>The filter selection is retained after a postback.</span>
<br />
<!-- Set the DynamicFilter control attributes. -->
Select Category: <asp:DynamicFilter runat="server" ID="CategoryFilter"
DataField="ProductCategory" FilterUIHint="ForeignKey"
OnFilterChanged="OnFilterSelectedIndexChanged" /><br />
<!-- Data-bound control that shows the filtered table rows. -->
<asp:GridView ID="GridView1" runat="server" DataSourceID="GridDataSource"
EnablePersistedSelection="true" PageSize="5"
AllowPaging="True" AllowSorting="True" CssClass="DDGridView">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="DeleteLinkButton" runat="server" CommandName="Delete"
CausesValidation="true" Text="Delete"
OnClientClick='return confirm("Are you sure you want to delete this item?");'
/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerStyle CssClass="footer"/>
<PagerTemplate>
<asp:GridViewPager ID="GridViewPager1" runat="server" />
</PagerTemplate>
<EmptyDataTemplate>
There are currently no items in this table.
</EmptyDataTemplate>
</asp:GridView>
<!-- The provider that connects to the database -->
<asp:LinqDataSource ID="GridDataSource" runat="server"
EnableDelete="true"
ContextTypeName="AdventureWorksLTDataContext"
TableName="Products">
</asp:LinqDataSource>
<!-- The control that handles the details for querying
the database, after a user's filtering action -->
<asp:QueryExtender ID="QueryBlock1" TargetControlID="GridDataSource"
runat="server">
<asp:DynamicFilterExpression ControlID="CategoryFilter" />
</asp:QueryExtender>
</ContentTemplate>
</asp:UpdatePanel>
</asp:Content>
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml.Linq;
using System.Web.DynamicData;
public partial class ForeignKeyFilter : System.Web.UI.Page {
protected MetaTable table;
protected void Page_Init(object sender, EventArgs e) {
DynamicDataManager1.RegisterControl(GridView1,
true /* setSelectionFromUrl */);
}
protected void Page_Load(object sender, EventArgs e) {
table = GridDataSource.GetTable();
Title = table.DisplayName;
// Disable various options if the table is readonly
if (table.IsReadOnly) {
GridView1.Columns[0].Visible = false;
}
}
// Handle the filter change event.
protected void OnFilterSelectedIndexChanged(object sender, EventArgs e) {
// Reset the index of the page to display after
// the data filter value has been changed.
GridView1.PageIndex = 0;
}
}
Imports System.Data
Imports System.Configuration
Imports System.Collections
Imports System.Linq
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Web.UI.HtmlControls
Imports System.Xml.Linq
Imports System.Web.DynamicData
Partial Public Class ForeignKeyFilter
Inherits System.Web.UI.Page
Protected table As MetaTable
Protected Sub Page_Init(ByVal sender As Object, ByVal e As EventArgs)
'setSelectionFromUrl
DynamicDataManager1.RegisterControl(GridView1, True)
End Sub
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
table = GridDataSource.GetTable()
Title = table.DisplayName
' Disable various options if the table is readonly
If table.IsReadOnly Then
GridView1.Columns(0).Visible = False
End If
End Sub
' Handle the filter change event.
Protected Sub OnFilterSelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)
' Reset the index of the page to display after
' the data filter value has been changed.
GridView1.PageIndex = 0
End Sub
End Class
注解
本主题内容:In this topic:
介绍Introduction
DynamicFilter控件在页标记中用于生成用于筛选表行的 UI。The DynamicFilter control is used in a page markup to generate the UI for filtering table rows. 动态数据使用 ~ \DynamicData\Filters 文件夹中的默认筛选器模板创建 UI。Dynamic Data creates the UI by using the default filter templates that are in the ~\DynamicData\Filters folder. 这些模板支持外键、布尔值和枚举列类型。These templates support foreign-key, Boolean, and enumeration column types.
下表显示了您可以执行的一些任务。The following table shows some of the tasks you can perform.
| 方案Scenario | 说明Description |
|---|---|
| 指定要用于表行筛选的列。Specify the column to use for table row filtering. | 使用属性 DataField 指定要用于表行筛选的列。Use the property DataField to specify the column to use for table row filtering. |
| 指定用于创建 UI 的筛选器模板的名称。Specify the name of the filter template to use to create the UI. | 使用 "属性" FilterUIHint 指定用于创建 UI 的筛选器模板的名称。Use the property FilterUIHint to specify the name of the filter template to use to create the UI. |
| 在呈现 UI 之前执行自定义操作。Perform custom operations before the UI is rendered. | 在 FilterChanged 呈现 UI 之前,使用执行自定义操作。Use the FilterChanged to perform custom operations before the UI is rendered. |
您可以按以下方式指定筛选器模板以供使用:You can specify the filter template to use in the following ways:
通过使用 FilterUIHint 页标记中的属性。By using the FilterUIHint property in page markup. 此方法是一种表示层自定义项,它独立于架构 (数据库) ,适用于单个页面。This approach is a presentation-layer customization, which is independent of the schema (database), and which applies to a single page.
通过使用 FilterUIHintAttribute 模型中的属性。By using the FilterUIHintAttribute attribute in the model. 此方法是一种数据层自定义项,它依赖于特定架构 (数据库) ,并应用于整个应用程序。This approach is a data-layer customization, which depends on the specific schema (database), and which applies to the entire application.
如果使用这两种方法,则标记中指定的筛选器模板将优先于数据模型中所指定的模板。If you use both approaches, the filter template that is specified in the markup takes precedence over the template that is specified in the data model.
类上下文Class Context
DynamicFilter控件设计为与控件一起使用 QueryExtender 。The DynamicFilter control is designed to work with the QueryExtender control. DynamicFilter控件由 DynamicFilterExpression QueryExtender 页面标记中对象内的实例引用。The DynamicFilter control is referenced by a DynamicFilterExpression instance inside a QueryExtender object in the page markup.
下图显示了为了通过外键列实现表行筛选而动态数据遵循的步骤。The following figure shows the steps that Dynamic Data follows in order to implement table row filtering by a foreign-key column.


DynamicFilter控件将所选值传递到 QueryExtender 控件。The DynamicFilter control passes the selected value to the QueryExtender control.
QueryExtender控件使用值来创建查询筛选信息。The QueryExtender control uses the value to create the query filtering information. 然后,它将此信息传递到数据源控件。It then passes this information to the data source control.
数据源控件将筛选查询信息传递到数据源提供程序。The data source control passes the filtering query information to the data source provider.
数据源提供程序将查询传递到数据库。The data source provider passes the query to the database.
数据库返回筛选的表行。The database returns the filtered table rows.
数据源提供程序将此数据发送回数据源控件。The data source provider sends this data back to the data source control.
数据源控件将筛选的表行传递到数据绑定控件以便显示。The data source control passes the filtered table rows to the data-bound control for display.
声明性语法Declarative Syntax
<asp:DynamicFilter
ID="Control ID"
DataField="Name of the data field to use for filtering"
EnableViewState="True|False"
FilterUIHint="Name of the filter template to generate the UI"
OnFilterChanged="Filter changed event handler"
OnDataBinding="DataBinding event handler"
OnDisposed="Disposed event handler"
OnInit="Init event handler"
OnLoad="Load event handler"
OnPreRender="PreRender event handler"
OnUnload="Unload event handler"
Visible="True|False"
runat="server"/>
构造函数
| DynamicFilter() |
初始化 DynamicFilter 类的新实例。Initializes a new instance of the DynamicFilter class. |
属性
| Adapter |
获取控件的浏览器特定适配器。Gets the browser-specific adapter for the control. (继承自 Control) |
| AppRelativeTemplateSourceDirectory |
获取或设置包含该控件的 Page 或 UserControl 对象的应用程序相对虚拟目录。Gets or sets the application-relative virtual directory of the Page or UserControl object that contains this control. (继承自 Control) |
| BindingContainer |
获取包含该控件的数据绑定的控件。Gets the control that contains this control's data binding. (继承自 Control) |
| ChildControlsCreated |
获取一个值,该值指示是否已创建服务器控件的子控件。Gets a value that indicates whether the server control's child controls have been created. (继承自 Control) |
| ClientID |
获取由 ASP.NET 生成的 HTML 标记的控件 ID。Gets the control ID for HTML markup that is generated by ASP.NET. (继承自 Control) |
| ClientIDMode |
获取或设置用于生成 ClientID 属性值的算法。Gets or sets the algorithm that is used to generate the value of the ClientID property. (继承自 Control) |
| ClientIDSeparator |
获取一个字符值,该值表示 ClientID 属性中使用的分隔符字符。Gets a character value representing the separator character used in the ClientID property. (继承自 Control) |
| Column |
获取或设置要用于筛选的表列。Gets or sets the table column to use for filtering. |
| Context |
为当前 Web 请求获取与服务器控件关联的 HttpContext 对象。Gets the HttpContext object associated with the server control for the current Web request. (继承自 Control) |
| Controls |
获取 ControlCollection 对象,该对象表示 UI 层次结构中的指定服务器控件的子控件。Gets a ControlCollection object that represents the child controls for a specified server control in the UI hierarchy. (继承自 Control) |
| DataField |
获取或设置要用于表行筛选的列的名称。Gets or sets the name of the column to use for table row filtering. |
| DataItemContainer |
如果命名容器实现 IDataItemContainer,则获取对命名容器的引用。Gets a reference to the naming container if the naming container implements IDataItemContainer. (继承自 Control) |
| DataKeysContainer |
如果命名容器实现 IDataKeysControl,则获取对命名容器的引用。Gets a reference to the naming container if the naming container implements IDataKeysControl. (继承自 Control) |
| DesignMode |
获取一个值,该值指示是否正在使用设计图面上的一个控件。Gets a value indicating whether a control is being used on a design surface. (继承自 Control) |
| EnableTheming |
获取或设置一个值,该值指示主题是否应用于该控件。Gets or sets a value indicating whether themes apply to this control. (继承自 Control) |
| EnableViewState |
获取或设置一个值,该值指示服务器控件是否向发出请求的客户端保持自己的视图状态以及它所包含的任何子控件的视图状态。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. (继承自 Control) |
| Events |
获取控件的事件处理程序委托列表。Gets a list of event handler delegates for the control. 此属性是只读的。This property is read-only. (继承自 Control) |
| FilterTemplate |
获取与此控件的当前实例关联的筛选器模板。Gets the filter template that is associated with the current instance of this control. |
| FilterUIHint |
获取或设置用于创建 UI 的筛选器模板的名称。Gets or sets the name of the filter template that is used to create the UI. |
| HasChildViewState |
获取一个值,该值指示当前服务器控件的子控件是否具有任何已保存的视图状态设置。Gets a value indicating whether the current server control's child controls have any saved view-state settings. (继承自 Control) |
| ID |
获取或设置分配给服务器控件的编程标识符。Gets or sets the programmatic identifier assigned to the server control. (继承自 Control) |
| IdSeparator |
获取用于分隔控件标识符的字符。Gets the character used to separate control identifiers. (继承自 Control) |
| IsChildControlStateCleared |
获取一个值,该值指示该控件中包含的控件是否具有控件状态。Gets a value indicating whether controls contained within this control have control state. (继承自 Control) |
| IsTrackingViewState |
获取一个值,用于指示服务器控件是否会将更改保存到其视图状态中。Gets a value that indicates whether the server control is saving changes to its view state. (继承自 Control) |
| IsViewStateEnabled |
获取一个值,该值指示是否为该控件启用了视图状态。Gets a value indicating whether view state is enabled for this control. (继承自 Control) |
| LoadViewStateByID |
获取一个值,该值指示控件是否通过 ID 而不是索引参与加载其视图状态。Gets a value indicating whether the control participates in loading its view state by ID instead of index. (继承自 Control) |
| NamingContainer |
获取对服务器控件的命名容器的引用,此引用创建唯一的命名空间,以区分具有相同 ID 属性值的服务器控件。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. (继承自 Control) |
| Page |
获取对包含服务器控件的 Page 实例的引用。Gets a reference to the Page instance that contains the server control. (继承自 Control) |
| Parent |
获取对页 UI 层次结构中服务器控件的父控件的引用。Gets a reference to the server control's parent control in the page control hierarchy. (继承自 Control) |
| RenderingCompatibility |
获取一个值,该值指定呈现的 HTML 将与之兼容的 ASP.NET 版本。Gets a value that specifies the ASP.NET version that rendered HTML will be compatible with. (继承自 Control) |
| Site |
获取容器信息,该容器在呈现于设计图面上时承载当前控件。Gets information about the container that hosts the current control when rendered on a design surface. (继承自 Control) |
| SkinID |
获取或设置要应用于控件的外观。Gets or sets the skin to apply to the control. (继承自 Control) |
| TemplateControl |
获取或设置对包含该控件的模板的引用。Gets or sets a reference to the template that contains this control. (继承自 Control) |
| TemplateSourceDirectory |
获取包含当前服务器控件的 Page 或 UserControl 的虚拟目录。Gets the virtual directory of the Page or UserControl that contains the current server control. (继承自 Control) |
| UniqueID |
获取服务器控件的唯一的、以分层形式限定的标识符。Gets the unique, hierarchically qualified identifier for the server control. (继承自 Control) |
| ValidateRequestMode |
获取或设置指示控件是否检查来自浏览器的客户端输入是否具有潜在危险值的值。Gets or sets a value that indicates whether the control checks client input from the browser for potentially dangerous values. (继承自 Control) |
| ViewState |
获取状态信息的字典,这些信息使您可以在同一页的多个请求间保存和还原服务器控件的视图状态。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. (继承自 Control) |
| ViewStateIgnoresCase |
获取一个值,该值指示 StateBag 对象是否不区分大小写。Gets a value that indicates whether the StateBag object is case-insensitive. (继承自 Control) |
| ViewStateMode |
获取或设置此控件的视图状态模式。Gets or sets the view-state mode of this control. (继承自 Control) |
| Visible |
获取或设置一个值,该值指示服务器控件是否作为 UI 呈现在页上。Gets or sets a value that indicates whether a server control is rendered as UI on the page. (继承自 Control) |
方法
| AddedControl(Control, Int32) |
在子控件添加到 Control 对象的 Controls 集合后调用。Called after a child control is added to the Controls collection of the Control object. (继承自 Control) |
| AddParsedSubObject(Object) |
通知服务器控件,分析了一个元素(XML 或 HTML),并将该元素添加到服务器控件的 ControlCollection 对象中。Notifies the server control that an element, either XML or HTML, was parsed, and adds the element to the server control's ControlCollection object. (继承自 Control) |
| ApplyStyleSheetSkin(Page) |
将页样式表中定义的样式属性应用到控件。Applies the style properties defined in the page style sheet to the control. (继承自 Control) |
| BeginRenderTracing(TextWriter, Object) |
开始输出数据的设计时追踪。Begins design-time tracing of rendering data. (继承自 Control) |
| BuildProfileTree(String, Boolean) |
收集有关服务器控件的信息并将该信息发送到 Trace 属性,在启用页的跟踪功能时将显示该属性。Gathers information about the server control and delivers it to the Trace property to be displayed when tracing is enabled for the page. (继承自 Control) |
| ClearCachedClientID() |
将缓存的 ClientID 值设置为 |
| ClearChildControlState() |
删除服务器控件的子控件的控件状态信息。Deletes the control-state information for the server control's child controls. (继承自 Control) |
| ClearChildState() |
删除服务器控件的所有子控件的视图状态和控件状态信息。Deletes the view-state and control-state information for all the server control's child controls. (继承自 Control) |
| ClearChildViewState() |
删除服务器控件的所有子控件的视图状态信息。Deletes the view-state information for all the server control's child controls. (继承自 Control) |
| ClearEffectiveClientIDMode() |
将当前控件实例和任何子控件的 ClientIDMode 属性设置为 Inherit。Sets the ClientIDMode property of the current control instance and of any child controls to Inherit. (继承自 Control) |
| CreateChildControls() |
由 ASP.NET 页框架调用,以通知服务器控件在准备回发或呈现时使用基于撰写的实现来创建其所包含任何子控件。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. (继承自 Control) |
| CreateControlCollection() |
创建一个新 ControlCollection 对象来保存服务器控件的子控件(包括文本控件和服务器控件)。Creates a new ControlCollection object to hold the child controls (both literal and server) of the server control. (继承自 Control) |
| DataBind() |
将数据源绑定到调用的服务器控件及其所有子控件。Binds a data source to the invoked server control and all its child controls. (继承自 Control) |
| DataBind(Boolean) |
将数据源绑定到调用的服务器控件及其所有子控件,同时可以选择引发 DataBinding 事件。Binds a data source to the invoked server control and all its child controls with an option to raise the DataBinding event. (继承自 Control) |
| DataBindChildren() |
将数据源绑定到服务器控件的子控件。Binds a data source to the server control's child controls. (继承自 Control) |
| Dispose() |
使服务器控件得以在从内存中释放之前执行最后的清理操作。Enables a server control to perform final clean up before it is released from memory. (继承自 Control) |
| EndRenderTracing(TextWriter, Object) |
结束输出数据的设计时追踪。Ends design-time tracing of rendering data. (继承自 Control) |
| EnsureChildControls() |
确定服务器控件是否包含子控件。Determines whether the server control contains child controls. 如果不包含,则创建子控件。If it does not, it creates child controls. (继承自 Control) |
| EnsureID() |
为尚未分配标识符的控件创建标识符。Creates an identifier for controls that do not have an identifier assigned. (继承自 Control) |
| Equals(Object) |
确定指定对象是否等于当前对象。Determines whether the specified object is equal to the current object. (继承自 Object) |
| FindControl(String) |
在当前的命名容器中搜索带指定 |
| FindControl(String, Int32) |
使用指定的 |
| Focus() |
为控件设置输入焦点。Sets input focus to a control. (继承自 Control) |
| GetDesignModeState() |
获取控件的设计时数据。Gets design-time data for a control. (继承自 Control) |
| GetHashCode() |
作为默认哈希函数。Serves as the default hash function. (继承自 Object) |
| GetRouteUrl(Object) |
获取与一组路由参数对应的 URL。Gets the URL that corresponds to a set of route parameters. (继承自 Control) |
| GetRouteUrl(RouteValueDictionary) |
获取与一组路由参数对应的 URL。Gets the URL that corresponds to a set of route parameters. (继承自 Control) |
| GetRouteUrl(String, Object) |
获取与一组路由参数以及某个路由名称对应的 URL。Gets the URL that corresponds to a set of route parameters and a route name. (继承自 Control) |
| GetRouteUrl(String, RouteValueDictionary) |
获取与一组路由参数以及某个路由名称对应的 URL。Gets the URL that corresponds to a set of route parameters and a route name. (继承自 Control) |
| GetType() |
获取当前实例的 Type。Gets the Type of the current instance. (继承自 Object) |
| GetUniqueIDRelativeTo(Control) |
返回指定控件的 UniqueID 属性的前缀部分。Returns the prefixed portion of the UniqueID property of the specified control. (继承自 Control) |
| HasControls() |
确定服务器控件是否包含任何子控件。Determines if the server control contains any child controls. (继承自 Control) |
| HasEvents() |
返回一个值,该值指示是否为控件或任何子控件注册事件。Returns a value indicating whether events are registered for the control or any child controls. (继承自 Control) |
| IsLiteralContent() |
确定服务器控件是否只包含文字内容。Determines if the server control holds only literal content. (继承自 Control) |
| LoadControlState(Object) |
从 SaveControlState() 方法保存的上一个页请求还原控件状态信息。Restores control-state information from a previous page request that was saved by the SaveControlState() method. (继承自 Control) |
| LoadViewState(Object) |
从用 SaveViewState() 方法保存的上一个页面请求还原视图状态信息。Restores view-state information from a previous page request that was saved by the SaveViewState() method. (继承自 Control) |
| MapPathSecure(String) |
检索虚拟路径(绝对的或相对的)映射到的物理路径。Retrieves the physical path that a virtual path, either absolute or relative, maps to. (继承自 Control) |
| MemberwiseClone() |
创建当前 Object 的浅表副本。Creates a shallow copy of the current Object. (继承自 Object) |
| OnBubbleEvent(Object, EventArgs) |
确定服务器控件的事件是否沿页的 UI 服务器控件层次结构向上传递。Determines whether the event for the server control is passed up the page's UI server control hierarchy. (继承自 Control) |
| OnDataBinding(EventArgs) |
引发 DataBinding 事件。Raises the DataBinding event. (继承自 Control) |
| OnInit(EventArgs) |
引发 Init 事件。Raises the Init event. (继承自 Control) |
| OnLoad(EventArgs) |
引发 Load 事件。Raises the Load event. (继承自 Control) |
| OnPreRender(EventArgs) |
引发 PreRender 事件。Raises the PreRender event. (继承自 Control) |
| OnUnload(EventArgs) |
引发 Unload 事件。Raises the Unload event. (继承自 Control) |
| OpenFile(String) |
获取用于读取文件的 Stream。Gets a Stream used to read a file. (继承自 Control) |
| RaiseBubbleEvent(Object, EventArgs) |
将所有事件源及其信息分配给控件的父级。Assigns any sources of the event and its information to the control's parent. (继承自 Control) |
| RemovedControl(Control) |
从 Control 对象的 Controls 集合移除子控件后调用。Called after a child control is removed from the Controls collection of the Control object. (继承自 Control) |
| Render(HtmlTextWriter) |
将服务器控件内容发送到指定的 HtmlTextWriter 对象。Sends server control content to the specified HtmlTextWriter object. |
| RenderChildren(HtmlTextWriter) |
将服务器控件子级的内容输出到提供的 HtmlTextWriter 对象,该对象可写入要在客户端上呈现的内容。Outputs the content of a server control's children to a provided HtmlTextWriter object, which writes the content to be rendered on the client. (继承自 Control) |
| RenderControl(HtmlTextWriter) |
将服务器控件内容输出到所提供的 HtmlTextWriter 对象,如果启用了跟踪,则还将存储有关该控件的跟踪信息。Outputs server control content to a provided HtmlTextWriter object and stores tracing information about the control if tracing is enabled. (继承自 Control) |
| RenderControl(HtmlTextWriter, ControlAdapter) |
使用提供的 HtmlTextWriter 对象将服务器控件内容输出到提供的 ControlAdapter 对象。Outputs server control content to a provided HtmlTextWriter object using a provided ControlAdapter object. (继承自 Control) |
| ResolveAdapter() |
获取负责呈现指定控件的控件适配器。Gets the control adapter responsible for rendering the specified control. (继承自 Control) |
| ResolveClientUrl(String) |
获取浏览器可以使用的 URL。Gets a URL that can be used by the browser. (继承自 Control) |
| ResolveUrl(String) |
将 URL 转换为在请求客户端可用的 URL。Converts a URL into one that is usable on the requesting client. (继承自 Control) |
| SaveControlState() |
保存将页面回发到服务器之后发生的所有服务器控件状态更改。Saves any server control state changes that have occurred since the time the page was posted back to the server. (继承自 Control) |
| SaveViewState() |
保存将页面回发到服务器之后发生的所有服务器控件视图状态更改。Saves any server control view-state changes that have occurred since the time the page was posted back to the server. (继承自 Control) |
| SetDesignModeState(IDictionary) |
为控件设置设计时数据。Sets design-time data for a control. (继承自 Control) |
| SetRenderMethodDelegate(RenderMethod) |
分配事件处理程序委托,以将服务器控件及其内容呈现到父控件中。Assigns an event handler delegate to render the server control and its content into its parent control. (继承自 Control) |
| SetTraceData(Object, Object) |
使用跟踪数据键和跟踪数据值,为呈现数据的设计时追踪设置跟踪数据。Sets trace data for design-time tracing of rendering data, using the trace data key and the trace data value. (继承自 Control) |
| SetTraceData(Object, Object, Object) |
使用跟踪对象、跟踪数据键和跟踪数据值,为呈现数据的设计时追踪设置跟踪数据。Sets trace data for design-time tracing of rendering data, using the traced object, the trace data key, and the trace data value. (继承自 Control) |
| ToString() |
返回表示当前对象的字符串。Returns a string that represents the current object. (继承自 Object) |
| TrackViewState() |
导致跟踪服务器控件的视图状态的更改,以便这些更改可以存储到服务器控件的 StateBag 对象中。Causes tracking of view-state changes to the server control so they can be stored in the server control's StateBag object. 通过 ViewState 属性可访问此对象。This object is accessible through the ViewState property. (继承自 Control) |
事件
| DataBinding |
当服务器控件绑定到数据源时发生。Occurs when the server control binds to a data source. (继承自 Control) |
| Disposed |
当从内存释放服务器控件时发生,这是请求 ASP.NET 页时服务器控件生存期的最后阶段。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. (继承自 Control) |
| FilterChanged |
在用户为外键选择值时发生。Occurs when the user select a value for the foreign key. |
| Init |
当服务器控件初始化时发生;初始化是控件生存期的第一步。Occurs when the server control is initialized, which is the first step in its lifecycle. (继承自 Control) |
| Load |
当服务器控件加载到 Page 对象中时发生。Occurs when the server control is loaded into the Page object. (继承自 Control) |
| PreRender |
在加载 Control 对象之后、呈现之前发生。Occurs after the Control object is loaded but prior to rendering. (继承自 Control) |
| Unload |
当服务器控件从内存中卸载时发生。Occurs when the server control is unloaded from memory. (继承自 Control) |
显式接口实现
扩展方法
| FindDataSourceControl(Control) |
返回与指定控件的数据控件关联的数据源。Returns the data source that is associated with the data control for the specified control. |
| FindFieldTemplate(Control, String) |
返回指定控件的命名容器中指定列的字段模板。Returns the field template for the specified column in the specified control's naming container. |
| FindMetaTable(Control) |
返回包含数据控件的元表对象。Returns the metatable object for the containing data control. |