RepeaterCommandEventHandler Delegate
Definition
Important
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Represents the method that will handle the ItemCommand event of a Repeater.
public delegate void RepeaterCommandEventHandler(System::Object ^ source, RepeaterCommandEventArgs ^ e);public delegate void RepeaterCommandEventHandler(object source, RepeaterCommandEventArgs e);type RepeaterCommandEventHandler = delegate of obj * RepeaterCommandEventArgs -> unitPublic Delegate Sub RepeaterCommandEventHandler(source As Object, e As RepeaterCommandEventArgs)Parameters
- source
- Object
The source of the event.
A RepeaterCommandEventArgs that contains the event data.
Examples
The following example demonstrates how to specify and code a handler for the ItemCommand event of the Repeater. Information about the button is displayed when a Button control within the Repeater is clicked.
<%@ 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>Repeater 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();
}
}
void R1_ItemCommand(Object Sender, RepeaterCommandEventArgs e) {
Label2.Text = "The " + ((Button)e.CommandSource).Text + " button has just been clicked; <br />";
}
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>
<h3>Repeater Example</h3>
<form id="form1" runat="server">
<b>Repeater1:</b>
<br />
<asp:Repeater id="Repeater1" OnItemCommand="R1_ItemCommand" runat="server">
<HeaderTemplate>
<table border="1">
<tr>
<td><b>Company</b></td>
<td><b>Symbol</b></td>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td> <%# DataBinder.Eval(Container.DataItem, "Name") %> </td>
<td> <ASP:Button Text=<%# DataBinder.Eval(Container.DataItem, "Ticker") %> runat="server" /></td>
</tr>
</ItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>
<br />
<asp:Label id="Label2" font-names="Verdana" ForeColor="Green" font-size="10pt" runat="server"/>
</form>
</body>
</html>
<%@ 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>Repeater 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
Sub R1_ItemCommand(Sender As Object, e As RepeaterCommandEventArgs)
Label2.Text = "The " & CType(e.CommandSource, Button).Text & _
" button has just been clicked; <br />"
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>
<h3>Repeater Example</h3>
<form id="form1" runat="server">
<b>Repeater1:</b>
<br />
<asp:Repeater id="Repeater1" OnItemCommand="R1_ItemCommand" runat="server">
<HeaderTemplate>
<table border="1">
<tr>
<td><b>Company</b></td>
<td><b>Symbol</b></td>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td> <%# DataBinder.Eval(Container.DataItem, "Name") %> </td>
<td> <ASP:Button Text=<%# DataBinder.Eval(Container.DataItem, "Ticker") %> runat="server" /></td>
</tr>
</ItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>
<br />
<asp:Label id="Label2" font-names="Verdana" ForeColor="Green" font-size="10pt" runat="server"/>
</form>
</body>
</html>
Remarks
When you create a RepeaterCommandEventHandler delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, unless you remove the delegate. For more information about event handler delegates, see Handling and Raising Events.
For more information about how to handle events, see Handling and Raising Events.
Extension Methods
| GetMethodInfo(Delegate) |
Gets an object that represents the method represented by the specified delegate. |
