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SqlDataSourceStatusEventHandler Delegate

Represents the method that will handle the Selected, Updated, Inserted, and Deleted events of the SqlDataSource control.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)
public delegate void SqlDataSourceStatusEventHandler(
	Object sender,
	SqlDataSourceStatusEventArgs e
)

Parameters

sender
Type: System.Object

The source of the event, the SqlDataSource control.

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

A SqlDataSourceStatusEventArgs that contains the event data.

When you create a SqlDataSourceStatusEventHandler 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 Consuming Events.

The following code example demonstrates how to handle the Updated event and examine the values contained in the SqlDataSourceStatusEventArgs object. The OnDSUpdatedHandler is called by the OnUpdated method to perform additional post-processing after an Update action is performed by a SqlDataSource control.

<%@Page  Language="C#" %>
<%@Import Namespace="System.Web.Mail" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
 private void OnDSUpdatedHandler(Object source, SqlDataSourceStatusEventArgs e) {
    if (e.AffectedRows > 0) {
        // Perform any additional processing, 
        // such as setting a status label after the operation.
        Label1.Text = Request.LogonUserIdentity.Name +
            " changed user information successfully!";    
    }
    else {
        Label1.Text = "No data updated!";
    }
 }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <asp:SqlDataSource
          id="SqlDataSource1"
          runat="server"
          DataSourceMode="DataSet"
          ConnectionString="<%$ ConnectionStrings:MyNorthwind%>"
          SelectCommand="SELECT EmployeeID,FirstName,LastName,Title FROM Employees"
          UpdateCommand="Update Employees SET FirstName=@FirstName,LastName=@LastName,Title=@Title WHERE EmployeeID=@EmployeeID"
          OnUpdated="OnDSUpdatedHandler">
      </asp:SqlDataSource>

      <asp:GridView
          id="GridView1"
          runat="server"
          AutoGenerateColumns="False"
          DataKeyNames="EmployeeID"
          AutoGenerateEditButton="True"
          DataSourceID="SqlDataSource1">
          <columns>
              <asp:BoundField HeaderText="First Name" DataField="FirstName" />
              <asp:BoundField HeaderText="Last Name" DataField="LastName" />
              <asp:BoundField HeaderText="Title" DataField="Title" />
          </columns>
      </asp:GridView>

      <asp:Label
          id="Label1"
          runat="server">
      </asp:Label>

    </form>
  </body>
</html>

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

Windows Phone 8.1, Windows Phone 8, 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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