DynamicDataExtensions.FindFieldTemplate(Control, String) Method

Definition

Restituisce il modello di campo per la colonna specificata nel contenitore di denominazione del controllo specificato.Returns the field template for the specified column in the specified control's naming container.

public:
[System::Runtime::CompilerServices::Extension]
 static System::Web::UI::Control ^ FindFieldTemplate(System::Web::UI::Control ^ control, System::String ^ columnName);
public static System.Web.UI.Control FindFieldTemplate (this System.Web.UI.Control control, string columnName);
static member FindFieldTemplate : System.Web.UI.Control * string -> System.Web.UI.Control
<Extension()>
Public Function FindFieldTemplate (control As Control, columnName As String) As Control

Parameters

control
Control

Controllo contenitore.The containing control.

columnName
String

Nome della colonna.The name of the column.

Returns

Control

Modello di campo per la colonna specificata nel contenitore di denominazione del controllo specificato.The field template for the specified column in the specified control's naming container.

Examples

Nell'esempio seguente viene illustrato come trovare il controllo casella di testo per un nome di colonna specificato.The following example shows how to find the text box control for a specified column name. I modelli di pagina Dynamic Data, ad esempio, vengono copiati nella cartella \DynamicData\CustomPages\ProductDescriptions per fornire una visualizzazione personalizzata per la tabella ProductDescription del database AdventureWorksLT.In example, the Dynamic Data page templates are copied to the \DynamicData\CustomPages\ProductDescriptions folder to provide a custom display for the ProductDescription table of the AdventureWorksLT database. Il markup del file Insert. aspx è stato modificato per aggiungere un gestore eventi OnDataBound denominato DetailsView1_DataBound, in cui viene chiamato il metodo FindDataSourceControl per trovare un controllo casella di testo.The Insert.aspx file markup is changed to add an OnDataBound event handler named DetailsView1_DataBound, in which the FindDataSourceControl method is called to find a text box control.

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 Insert : System.Web.UI.Page {
    protected MetaTable table;

    protected void Page_Init(object sender, EventArgs e) {
        DynamicDataManager1.RegisterControl(DetailsView1);
    }

    protected void Page_Load(object sender, EventArgs e) {
        table = DetailsDataSource.GetTable();
        Title = table.DisplayName;
    }

    protected void DetailsView1_DataBound(object sender, EventArgs e) {

        var dsc = DetailsView1.FindDataSourceControl() as LinqDataSource;
        if (dsc == null || dsc.EnableInsert != true)
            return;

        var mTbl = DetailsView1.FindMetaTable() as MetaTable;
        if (mTbl != null)
            LblMetaTbl.Text = "Column count = " + mTbl.Columns.Count.ToString();

        var fldTmpUsrCtl = DetailsView1.FindFieldTemplate("Description") as FieldTemplateUserControl;
        if (fldTmpUsrCtl != null) {
            var entryFldDescript = fldTmpUsrCtl.DataControl as TextBox;
            entryFldDescript.Text = "(Enter short Description here.)";
        }

        var fldTmpUsrCtl2 = DetailsView1.FindFieldTemplate("ModifiedDate") as FieldTemplateUserControl;
        if (fldTmpUsrCtl2 != null) {
            var entryFldModDate = fldTmpUsrCtl2.DataControl as TextBox;
            entryFldModDate.Text = System.DateTime.Now.Date.ToShortDateString();
        }
    }

    protected void DetailsView1_ItemCommand(object sender, DetailsViewCommandEventArgs e) {
        if (e.CommandName == DataControlCommands.CancelCommandName) {
            Response.Redirect(table.ListActionPath);
        }
    }

    protected void DetailsView1_ItemInserted(object sender, DetailsViewInsertedEventArgs e) {
        if (e.Exception == null) {
            Response.Redirect(table.ListActionPath);
        }
    }
}
<%@ Page Language="C#" MasterPageFile="~/Site.master" CodeFile="Insert.aspx.cs" Inherits="Insert" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
    <asp:DynamicDataManager ID="DynamicDataManager1" runat="server" AutoLoadForeignKeys="true" />

    <h2> DynamicData\CustomPages\ProductDescriptions\Insert.aspx <%= table.DisplayName %></h2>
    <p>   <asp:Label ID="LblMetaTbl" runat="server" Text="Label"></asp:Label>   </p>

    <asp:ScriptManagerProxy runat="server" ID="ScriptManagerProxy1" />

    <asp:ValidationSummary ID="ValidationSummary1" runat="server" EnableClientScript="true"
        HeaderText="List of validation errors" />
    <asp:DynamicValidator runat="server" ID="DetailsViewValidator" ControlToValidate="DetailsView1" Display="None" />

    <asp:DetailsView ID="DetailsView1" runat="server" DataSourceID="DetailsDataSource" DefaultMode="Insert"
        AutoGenerateInsertButton="True" OnItemCommand="DetailsView1_ItemCommand" OnItemInserted="DetailsView1_ItemInserted"
        CssClass="detailstable" FieldHeaderStyle-CssClass="bold"
        OnDataBound="DetailsView1_DataBound">
    </asp:DetailsView>

    <asp:LinqDataSource ID="DetailsDataSource" runat="server" EnableInsert="true">
    </asp:LinqDataSource>
</asp:Content>

Applies to