LinqDataSourceUpdateEventArgs::Exception Property
Gets the exception that was thrown while the data was being validated before the update operation.
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
public: property LinqDataSourceValidationException^ Exception { LinqDataSourceValidationException^ get(); }
Property Value
Type: System.Web.UI.WebControls::LinqDataSourceValidationException^The exception, if an error occurred; otherwise, null.
If a validation exception is raised before the update operation is performed, the exception is stored in the Exception property. In an event handler for the Updating event, you can retrieve the exception through the Exception property.
The following example shows an event handler for the Updating event. It displays any validation exception messages by using a Label control.
Protected Sub LinqDataSource_Updating(ByVal sender As Object, _ ByVal e As LinqDataSourceUpdateEventArgs) If (e.Exception IsNot Nothing) Then For Each innerException As KeyValuePair(Of String, Exception) _ In e.Exception.InnerExceptions Label1.Text &= innerException.Key & ": " & _ innerException.Value.Message & "<br />" Next e.ExceptionHandled = True End If End Sub
[C#]
protected void LinqDataSource_Updating(object sender,
LinqDataSourceUpdateEventArgs e)
{
if (e.Exception != null)
{
foreach (KeyValuePair<string, Exception> innerException in
e.Exception.InnerExceptions)
{
Label1.Text += innerException.Key + ": " +
innerException.Value.Message + "<br />";
}
e.ExceptionHandled = true;
}
}
Available since 3.5
LinqDataSourceUpdateEventArgs Class
System.Web.UI.WebControls Namespace
NIB: LinqDataSource Web Server Control Overview
Walkthrough: Retrieving, Updating, Inserting, and Deleting Data with the LinqDataSource and DetailsView Controls
How to: Update, Insert, and Delete Data with the LinqDataSource Control