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DetailsViewUpdatedEventArgs Class

Provides data for the ItemUpdated event.

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

<AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level := AspNetHostingPermissionLevel.Minimal)> _
<AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level := AspNetHostingPermissionLevel.Minimal)> _
Public Class DetailsViewUpdatedEventArgs _
	Inherits EventArgs
Dim instance As DetailsViewUpdatedEventArgs

The DetailsView control raises the ItemUpdated event when an Update button (a button with its CommandName property set to "Update") within the control is clicked, but after the DetailsView control updates the record. This allows you to provide an event handler that performs a custom routine, such as checking the results of an update operation, whenever this event occurs.

A DetailsViewUpdatedEventArgs object is passed to the event handler, which allows you to determine the number of records affected and any exceptions that might have occurred. To determine the number of records affected by the update operation, use the AffectedRows property. Use the Exception property to determine whether any exceptions occurred. You can also indicate whether the exception was handled in the event handler by setting the ExceptionHandled property. If you need to access the key field values for the updated record, use the Keys property. The original and updated non-key field values can be accessed using the OldValues and NewValues properties, respectively.

By default, the DetailsView control returns to the mode specified by the DefaultMode property after an update operation. To keep the DetailsView control in edit mode, set the KeepInEditMode property to true.

For more information about handling events, see Consuming Events.

For a list of initial property values for an instance of the DetailsViewUpdatedEventArgs class, see the DetailsViewUpdatedEventArgs constructor.

The following code example demonstrates how to use the DetailsViewUpdatedEventArgs object passed to the event handler for the ItemUpdated event to determine whether an exception occurred during an update operation.

<%@ Page language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
<script runat="server">

  Sub CustomerDetailsView_ItemUpdated(ByVal sender As Object, ByVal e As DetailsViewUpdatedEventArgs)

    ' Use the Exception property to determine whether an exception 
    ' occurred during the insert operation. 
    If e.Exception Is Nothing Then 

      ' Use the Values property to get the value entered by  
      ' the user for the CompanyName field. 
      Dim keyFieldValue As String = e.Keys("CustomerID").ToString()

      ' Display a confirmation message.
      MessageLabel.Text = "Record " & keyFieldValue & _
        " updated successfully. " 

      ' Display the old and new values.

      If e.AffectedRows = 1 Then

        MessageLabel.Text &= e.AffectedRows.ToString() & _
          " record updated." 


        MessageLabel.Text &= e.AffectedRows.ToString() & _
          " records updated." 

      End If 


      ' Insert the code to handle the exception.
      MessageLabel.Text = e.Exception.Message

      ' Use the ExceptionHandled property to indicate that the  
      ' exception is already handled.
      e.ExceptionHandled = True 

      ' When an exception occurs, keep the DetailsView 
      ' control in edit mode.
      e.KeepInEditMode = True 

    End If 

  End Sub 

  Sub DisplayValues(ByVal e As DetailsViewUpdatedEventArgs)

    MessageLabel.Text &= "<br/></br>" 

    ' Iterate through the OldValue and NewValues 
    ' properties and display the values. 
    Dim i As Integer 

    For i = 0 To e.OldValues.Count - 1

      MessageLabel.Text &= "Old Value=" & e.OldValues(i).ToString() & _
        ", New Value=" & e.NewValues(i).ToString() & "<br/>" 


    MessageLabel.Text &= "</br>" 

  End Sub


<html xmlns="" >

  <head runat="server">
    <title>DetailsViewUpdatedEventArgs Example</title>
    <form id="form1" runat="server">

      <h3>DetailsViewUpdatedEventArgs Example</h3>

        <asp:detailsview id="CustomerDetailsView"

          <pagersettings position="Bottom"/> 



        <asp:label id="MessageLabel"

        <!-- This example uses Microsoft SQL Server and connects  -->
        <!-- to the Northwind sample database. Use an ASP.NET     -->
        <!-- expression to retrieve the connection string value   -->
        <!-- from the web.config file.                            -->
        <asp:sqldatasource id="DetailsViewSource"
          selectcommand="Select [CustomerID], [CompanyName], [Address], 
            [City], [PostalCode], [Country] From [Customers]"
          updatecommand="Update [Customers] Set 
          [CompanyName]=@CompanyName, [Address]=@Address, 
          [City]=@City, [PostalCode]=@PostalCode, 
          Where [CustomerID]=@CustomerID"
          "<%$ ConnectionStrings:NorthWindConnectionString%>" 



Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0