Repeater.OnBubbleEvent 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。

EventArgs パラメータが RepeaterCommandEventArgs のインスタンスである場合、ItemCommand 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 Function OnBubbleEvent ( _
    sender As Object, _
    e As EventArgs _
) As Boolean
'使用
Dim sender As Object
Dim e As EventArgs
Dim returnValue As Boolean

returnValue = Me.OnBubbleEvent(sender, e)

protected override bool OnBubbleEvent (
    Object sender,
    EventArgs e
)

protected:
virtual bool OnBubbleEvent (
    Object^ sender, 
    EventArgs^ e
) override

protected boolean OnBubbleEvent (
    Object sender, 
    EventArgs e
)

protected override function OnBubbleEvent (
    sender : Object, 
    e : EventArgs
) : boolean

適用できません。

パラメータ

sender
イベントのソース。

e
イベントデータを格納している EventArgs オブジェクト。

戻り値

ItemCommand が発生した場合は true。それ以外の場合は false。

使用例

イベント引数がコマンドタイプである場合に Repeater 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 - OnBubbleEvent - 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 - OnBubbleEvent - VB.NET Example</h3>
            
            <aspSample:CustomRepeaterOnBubbleEvent 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:CustomRepeaterOnBubbleEvent>
        </form>
    </body>
</html>

<%@ Page Language="C#" AutoEventWireup="True" %>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %>
<!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 - OnBubbleEvent - 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 - OnBubbleEvent - C# Example</h3>
      <aspSample:CustomRepeaterOnBubbleEvent 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:CustomRepeaterOnBubbleEvent>
    </form>
  </body>
</html>

<%@ Page Language="VJ#" AutoEventWireup="True" %>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.JSL.Controls" Assembly="Samples.AspNet.JSL" %>
<!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 - OnBubbleEvent - 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 - OnBubbleEvent - VJ# Example</h3>
      <aspSample:CustomRepeaterOnBubbleEvent 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:CustomRepeaterOnBubbleEvent>
    </form>
  </body>
</html>

Imports System.Web
Imports System.Security.Permissions

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

        Protected Overrides Function OnBubbleEvent(ByVal [source] As Object, ByVal args As System.EventArgs) As Boolean

            ' If the EventArgs are of type RepeaterCommadnEventArgs,
            ' then call the OnItemCommand event handler and return true (bubble up the event)
            ' else return false (don't bubble up the event).
            Dim isHandled As Boolean = False
            If TypeOf args Is System.Web.UI.WebControls.RepeaterCommandEventArgs Then
                Me.OnItemCommand(CType(args, System.Web.UI.WebControls.RepeaterCommandEventArgs))
                isHandled = True
            End If
            Return isHandled
        End Function
    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 CustomRepeaterOnBubbleEvent : System.Web.UI.WebControls.Repeater
  {
    protected override bool OnBubbleEvent(object source, System.EventArgs args)
    {
      // If the EventArgs are of type RepeaterCommandEventArgs,
      // then call the OnItemCommand event handler and return true (bubble up the event)
      // else return false (don't bubble up the event).
      bool isHandled = false;
      if (args is System.Web.UI.WebControls.RepeaterCommandEventArgs) 
      {
        this.OnItemCommand((System.Web.UI.WebControls.RepeaterCommandEventArgs)args);
        isHandled = true;
      }
      return isHandled;
    }
  }
}

package Samples.AspNet.JSL.Controls; 

public class CustomRepeaterOnBubbleEvent
    extends System.Web.UI.WebControls.Repeater
{
    protected boolean OnBubbleEvent(Object source, System.EventArgs args)
    {
        // If the EventArgs are of type RepeaterCommandEventArgs,
        // then call the OnItemCommand event handler and return true 
        // (bubble up the event) 
        // else return false (don't bubble up the event).
        boolean isHandled = false;
        if (args instanceof System.Web.UI.WebControls.
            RepeaterCommandEventArgs) {
            this.OnItemCommand((System.Web.UI.WebControls.
                RepeaterCommandEventArgs)args);
            isHandled = true;
        }
        return isHandled;
    } //OnBubbleEvent
} //CustomRepeaterOnBubbleEvent

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.OnBubbleEvent メソッド

構文

パラメータ

戻り値

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