LinqDataSourceValidationException.InnerExceptions Property


Gets one or more exceptions that occurred when new or modified data was being validated.

 property System::Collections::Generic::IDictionary<System::String ^, Exception ^> ^ InnerExceptions { System::Collections::Generic::IDictionary<System::String ^, Exception ^> ^ get(); };
public System.Collections.Generic.IDictionary<string,Exception> InnerExceptions { get; }
member this.InnerExceptions : System.Collections.Generic.IDictionary<string, Exception>
Public ReadOnly Property InnerExceptions As IDictionary(Of String, Exception)

Property Value


A collection that contains the exceptions.



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 />"  
        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   
            Label1.Text += innerException.Key + ": " +   
                innerException.Message + "<br />";  
        e.ExceptionHandled = true;  


The InnerExceptions collection contains all the validation exceptions that were thrown during data validation before an update, insert, or delete operation. A validation exception can occur if a value does not match the type of the property. For example, if you try to update an integer property by using non-numeric characters, a validation exception is thrown. A LINQ to SQL class can also contain customized validation criteria that make sure that the property contains a value that is within an expected range or pattern.

Applies to