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LinqDataSourceValidationException.InnerExceptions Property

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

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

public IDictionary<string, Exception> InnerExceptions { get; }

Property Value

Type: System.Collections.Generic.IDictionary<String, Exception>
A collection that contains the exceptions.

Implements

IDynamicValidatorException.InnerExceptions

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.

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.Message + "<br />";
        }
        e.ExceptionHandled = true;
    }
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5
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