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BulletedListEventHandler Delegate

Represents the method that will handle the Click event of a BulletedList control.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

public delegate void BulletedListEventHandler(
	Object sender,
	BulletedListEventArgs e
)

Parameters

sender
Type: System.Object

The source of the event.

e
Type: System.Web.UI.WebControls.BulletedListEventArgs

The argument of type BulletedListEventArgs that contains the event data.

When you create a BulletedListEventHandler delegate, you identify the method that will handle the Click event of a BulletedList control. 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 Events and Delegates.

The following example demonstrates how to specify and code an event handler for the Click event of a BulletedList control. When a list item is clicked, a message is displayed in a Label control on the page.

<%@ Page Language="C#" %>

<!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 runat="server">
  <title>BulletedList Click Example</title>
  <script runat="server">

    void ItemsBulletedList_Click(object sender, System.Web.UI.WebControls.BulletedListEventArgs e)
    {

	    // Change the message displayed in the label based on the index
	    // of the list item that was clicked.
	    switch (e.Index) 
      {
		    case 0:
			    Message.Text = "You clicked list item 1.";
			    break;
		    case 1:
			    Message.Text = "You clicked list item 2.";
			    break;
		    case 2:
			    Message.Text = "You clicked list item 3.";
			    break;
		    default:
			    throw new Exception("You did not click a valid list item.");
			    break;
	    }

    }

  </script>

</head>
<body>

  <h3>BulletedList Click Example</h3>

  <form id="form1" runat="server">

    <p>Click on an item in the list to raise the Click event.</p> 

    <asp:BulletedList id="ItemsBulletedList" 
      BulletStyle="Disc"
      DisplayMode="LinkButton" 
      OnClick="ItemsBulletedList_Click"
      runat="server">    
        <asp:ListItem Value="http://www.cohowinery.com">Coho Winery</asp:ListItem>
        <asp:ListItem Value="http://www.contoso.com">Contoso, Ltd.</asp:ListItem>
        <asp:ListItem Value="http://www.tailspintoys.com">Tailspin Toys</asp:ListItem>
    </asp:BulletedList>

    <asp:Label id="Message" 
      Font-Size="12"
      Width="168px" 
      Font-Bold="True" 
      runat="server"
      AssociatedControlID="ItemsBulletedList"/>

   </form>

</body>
</html>

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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