Repeater.OnDataBinding メソッド

[アーティクル]
06/26/2007

このメソッドは,.NET Framework インフラストラクチャをサポートします。独自に作成したコードから直接使用するためのものではありません。

DataBinding イベントを発生させます。

名前空間: System.Web.UI.WebControls
アセンブリ: System.Web (system.web.dll 内)

構文

'宣言
Protected Overrides Sub OnDataBinding ( _
    e As EventArgs _
)
'使用
Dim e As EventArgs

Me.OnDataBinding(e)

protected override void OnDataBinding (
    EventArgs e
)

protected:
virtual void OnDataBinding (
    EventArgs^ e
) override

protected void OnDataBinding (
    EventArgs e
)

protected override function OnDataBinding (
    e : EventArgs
)

適用できません。

パラメータ

e
イベントデータを格納している EventArgs オブジェクト。

使用例

イベント引数がコマンドタイプである場合に Repeater サーバーコントロールが必ず OnItemCommand を呼び出してイベントを発生させるか、または false を返してそのイベントを取り消すように、カスタムサーバーコントロール内の OnDataBinding メソッドをオーバーライドする方法を次のコード例に示します。

<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB" %>
<%@ Page Language="VB" AutoEventWireup="True" %>
<!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>
        <title>Custom Repeater - OnDataBinding - VB.NET Example</title>
        <script language="VB" runat="server">
            Sub Page_Load(Sender As Object, e As EventArgs)
                If Not IsPostBack Then
                    Dim values As New ArrayList()
                    
                    values.Add(New PositionData("Microsoft", "Msft"))
                    values.Add(New PositionData("Intel", "Intc"))
                    values.Add(New PositionData("Dell", "Dell"))
                    
                    Repeater1.DataSource = values
                    Repeater1.DataBind()
                End If
            End Sub

            Public Class PositionData
                
                Private myName As String
                Private myTicker As String        
                
                Public Sub New(newName As String, newTicker As String)
                    Me.myName = newName
                    Me.myTicker = newTicker
                End Sub        
                
                Public ReadOnly Property Name() As String
                    Get
                        Return myName
                    End Get
                End Property        
                
                Public ReadOnly Property Ticker() As String
                    Get
                        Return myTicker
                    End Get
                End Property
            End Class
        </script>
    </head>
    <body>
        <form id="Form1" method="post" runat="server">
            <h3>Custom Repeater - OnDataBinding - VB.NET Example</h3>
            
            <aspSample:CustomRepeaterOnDataBinding id="Repeater1" runat="server" >
                    <HeaderTemplate>
                        <table border="1" cellpadding="4" cellspacing="0">
                            <tr>
                                <th>Company</th>
                                <th>Symbol</th>
                            </tr>
                    </HeaderTemplate>
                    <ItemTemplate>
                        <tr>
                            <td> <%# DataBinder.Eval(Container.DataItem, "Name") %></td>
                            <td> <%# DataBinder.Eval(Container.DataItem, "Ticker") %></td>
                        </tr>
                    </ItemTemplate>
                    <FooterTemplate>
                        </table>

                    </FooterTemplate>
                </aspSample:CustomRepeaterOnDataBinding>
        </form>
    </body>
</html>

<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %>
<%@ Page Language="C#" AutoEventWireup="True" %>
<!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>
    <title>Custom Repeater - OnDataBinding - C# Example</title>
    <script language="C#" runat="server">
      void Page_Load(Object Sender, EventArgs e) 
      {
        if (!IsPostBack) 
        {
          ArrayList values = new ArrayList();
          values.Add(new PositionData("Microsoft", "Msft"));
          values.Add(new PositionData("Intel", "Intc"));
          values.Add(new PositionData("Dell", "Dell"));

          Repeater1.DataSource = values;
          Repeater1.DataBind();
        }
      }

      public class PositionData 
      {
        private string name;
        private string ticker;

        public PositionData(string name, string ticker) 
        {
          this.name = name;
          this.ticker = ticker;
        }

        public string Name 
        {
          get 
          {
            return name;
          }
        }

        public string Ticker 
        {
          get 
          {
            return ticker;
          }
        }
      }
    </script>
  </head>
  <body>
    <form id="Form1" method="post" runat="server">
      <h3>Custom Repeater - OnDataBinding - C# Example</h3>
      <aspSample:CustomRepeaterOnDataBinding id="Repeater1" runat="server">
        <HeaderTemplate>
          <table border="1" cellpadding="4" cellspacing="0">
            <tr>
              <th>Company</th>
              <th>Symbol</th>
            </tr>
        </HeaderTemplate>
        <ItemTemplate>
          <tr>
            <td> <%# DataBinder.Eval(Container.DataItem, "Name") %></td>
            <td> <%# DataBinder.Eval(Container.DataItem, "Ticker") %></td>
          </tr>
        </ItemTemplate>
        <FooterTemplate>
            </table>

        </FooterTemplate>
      </aspSample:CustomRepeaterOnDataBinding>
    </form>
  </body>
</html>

<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.JSL.Controls" Assembly="Samples.AspNet.JSL" %>
<%@ Page Language="VJ#" AutoEventWireup="True" %>
<!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>
    <title>Custom Repeater - OnDataBinding - VJ# Example</title>
    <script language="VJ#" runat="server">
        void Page_Load(Object Sender, EventArgs e) 
        {
            if (!get_IsPostBack()) {
                ArrayList values =  new ArrayList();
                values.Add(new PositionData("Microsoft", "Msft"));
                values.Add(new PositionData("Intel", "Intc"));
                values.Add(new PositionData("Dell", "Dell"));
                Repeater1.set_DataSource(values);
                Repeater1.DataBind();
            }
        } //Page_Load

        public class PositionData
        {
            private String name;
            private String ticker;
            
            public PositionData(String name, String ticker) 
            {
                this.name = name;
                this.ticker = ticker;
            } //PositionData

            /** @property 
             */
            public String get_Name()
            {
                return name;
            } //get_Name

            /** @property 
             */
            public String get_Ticker()
            {
                return ticker;
            } //get_Ticker
        } //PositionData
    </script>
  </head>
  <body>
    <form id="Form1" method="post" runat="server">
      <h3>Custom Repeater - OnDataBinding - VJ# Example</h3>
      <aspSample:CustomRepeaterOnDataBinding id="Repeater1" runat="server">
        <HeaderTemplate>
          <table border="1" cellpadding="4" cellspacing="0">
            <tr>
              <th>Company</th>
              <th>Symbol</th>
            </tr>
        </HeaderTemplate>
        <ItemTemplate>
          <tr>
            <td> <%# DataBinder.Eval(Container.get_DataItem(), "Name") %></td>
            <td> <%# DataBinder.Eval(Container.get_DataItem(), "Ticker") %></td>
          </tr>
        </ItemTemplate>
        <FooterTemplate>
            </table>

        </FooterTemplate>
      </aspSample:CustomRepeaterOnDataBinding>
    </form>
  </body>
</html>

Imports System.Web
Imports System.Security.Permissions

Namespace Samples.AspNet.VB.Controls
    <AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _
    Public NotInheritable Class CustomRepeaterOnDataBinding
        Inherits System.Web.UI.WebControls.Repeater

        Protected Overrides Sub OnDataBinding(ByVal e As System.EventArgs)
            ' Raise the OnDataBinding event.
            MyBase.OnDataBinding(e)

            ' Clear out the controls collection and child viewstate.
            Me.Controls.Clear()
            Me.ClearChildViewState()

            ' Create a new control hierarchy.
            Me.CreateControlHierarchy(True)
            Me.ChildControlsCreated = True
        End Sub
    End Class
End Namespace

using System.Web;
using System.Security.Permissions;

namespace Samples.AspNet.CS.Controls
{
  [AspNetHostingPermission(SecurityAction.Demand, Level=AspNetHostingPermissionLevel.Minimal)]
  public sealed class CustomRepeaterOnDataBinding : System.Web.UI.WebControls.Repeater
  {
    protected override void OnDataBinding(System.EventArgs e)
    {
      // Raise the OnDataBinding event.
      base.OnDataBinding(e);

      // Clear out the controls collection and child viewstate.
      this.Controls.Clear();
      this.ClearChildViewState();

      // Create a new control hierarchy.
      this.CreateControlHierarchy(true);
      this.ChildControlsCreated = true;
    }
  }
}

package Samples.AspNet.JSL.Controls; 

public class CustomRepeaterOnDataBinding
    extends System.Web.UI.WebControls.Repeater
{
    protected void OnDataBinding(System.EventArgs e)
    {
        // Raise the OnDataBinding event.
        super.OnDataBinding(e);
        // Clear out the controls collection and child viewstate.
        this.get_Controls().Clear();
        this.ClearChildViewState();
        // Create a new control hierarchy.
        this.CreateControlHierarchy(true);
        this.set_ChildControlsCreated(true);
    } //OnDataBinding
} //CustomRepeaterOnDataBinding

プラットフォーム

Windows 98,Windows Server 2000 SP4,Windows CE,Windows Millennium Edition,Windows Mobile for Pocket PC,Windows Mobile for Smartphone,Windows Server 2003,Windows XP Media Center Edition,Windows XP Professional x64 Edition,Windows XP SP2,Windows XP Starter Edition

Microsoft .NET Framework 3.0 は Windows Vista,Microsoft Windows XP SP2,および Windows Server 2003 SP1 でサポートされています。

次の方法で共有

Repeater.OnDataBinding メソッド

構文

パラメータ

使用例

プラットフォーム

バージョン情報

.NET Framework

参照

関連項目

その他の技術情報

その他のリソース