Provides data for the ItemDeleted event.
Assembly: System.Web (in System.Web.dll)
Thetype exposes the following members.
|AffectedRows||Gets the number of rows affected by the delete operation.|
|Exception||Gets the exception (if any) that was raised during the delete operation.|
|ExceptionHandled||Gets or sets a value indicating whether an exception that was raised during the delete operation was handled in the event handler.|
|Keys||Gets an ordered dictionary of key field name/value pairs that contains the names and values of the key fields of the deleted items.|
|Values||Gets a dictionary of the non-key field name/value pairs for the item to delete.|
|Equals(Object)||Determines whether the specified object is equal to the current object. (Inherited from Object.)|
|Finalize||Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)|
|GetHashCode||Serves as the default hash function. (Inherited from Object.)|
|GetType||Gets the Type of the current instance. (Inherited from Object.)|
|MemberwiseClone||Creates a shallow copy of the current Object. (Inherited from Object.)|
|ToString||Returns a string that represents the current object. (Inherited from Object.)|
The DetailsView control raises the ItemDeleted event when a Delete button (a button with its CommandName property set to "Delete") within the control is clicked, but after the DetailsView control deletes the record. This allows you to provide an event handler that performs a custom routine, such as checking the results of a delete operation, whenever this event occurs.
A 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 delete 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 want to access the name/value pairs of the key fields and non-key fields of the deleted record, use the Keys and Values properties, respectively.
For more information about handling events, see Consuming Events.
For a list of initial property values for an instance of the class, see the DetailsViewDeletedEventArgs constructor.
The following code example demonstrates how to use the object passed to the event handler for the ItemDeleted event to determine whether an exception occurred during a delete operation.
<%@ Page language="VB" AutoEventWireup="False" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> Sub StoresDetailView_ItemDeleted(ByVal sender As Object, _ ByVal e As DetailsViewDeletedEventArgs) _ Handles CustomerDetailsView.ItemDeleted ' Use the Exception property to determine whether an exception ' occurred during the delete operation. If e.Exception Is Nothing Then ' Use the AffectedRows property to determine the numbers of ' rows affected by the delete operation. If e.AffectedRows = 1 Then MessageLabel.Text = e.AffectedRows.ToString() _ & " record deleted successfully." Else MessageLabel.Text = e.AffectedRows.ToString() _ & " records deleted successfully." End If Else ' 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 End If End Sub </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>DetailsViewDeletedEventArgs Example</title> </head> <body> <form id="form1" runat="server"> <h3>DetailsViewDeletedEventArgs Example</h3> <asp:detailsview id="CustomerDetailsView" datasourceid="DetailsViewSource" datakeynames="CustomerID" autogeneratedeletebutton="true" autogeneraterows="true" allowpaging="true" runat="server"> <fieldheaderstyle backcolor="Navy" forecolor="White"/> </asp:detailsview> <asp:label id="MessageLabel" forecolor="Red" runat="server"/> <!-- 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]" deletecommand="Delete [Customers] Where [CustomerID]=@CustomerID" connectionstring= "<%$ ConnectionStrings:NorthWindConnectionString%>" runat="server"/> </form> </body> </html>