LinqDataSourceUpdateEventArgs.Exception Property
Definition
Important
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Gets the exception that was thrown while the data was being validated before the update operation.
public:
property System::Web::UI::WebControls::LinqDataSourceValidationException ^ Exception { System::Web::UI::WebControls::LinqDataSourceValidationException ^ get(); };
public System.Web.UI.WebControls.LinqDataSourceValidationException Exception { get; }
member this.Exception : System.Web.UI.WebControls.LinqDataSourceValidationException
Public ReadOnly Property Exception As LinqDataSourceValidationException
Property Value
The exception, if an error occurred; otherwise, null
.
Examples
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
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;
}
}
Remarks
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.
Applies to
Σχόλια
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