ValidationErrorEventArgs Class
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Provides data for the BindingValidationError event.
System::Object
System::EventArgs
System.Windows::RoutedEventArgs
System.Windows.Controls::ValidationErrorEventArgs
System::EventArgs
System.Windows::RoutedEventArgs
System.Windows.Controls::ValidationErrorEventArgs
Assembly: System.Windows (in System.Windows.dll)
The ValidationErrorEventArgs type exposes the following members.
| Name | Description | |
|---|---|---|
 | Action | Gets the state of the validation error. |
| Error | Gets the validation error that caused the BindingValidationError event. |
| Handled | Gets or sets the value that marks the routed event as handled. |
| OriginalSource | Gets a reference to the object that raised the event. (Inherited from RoutedEventArgs.) |
| Name | Description | |
|---|---|---|
 | 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 the Object is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Serves as a hash function for a particular type. (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 BindingValidationError event is raised when the binding engine creates and removes a validation error.
The following example shows how to set a binding to catch validation errors. When a BindingValidationError event is reported, use the ValidationErrorEventArgs to present the error Action information graphically to the user.
<StackPanel BindingValidationError="StackPanel_BindingValidationError" > <StackPanel.Resources> <my:Bills x:Name="MyBills"/> </StackPanel.Resources> <TextBlock TextWrapping="Wrap" Text="To generate a validation error, input a negative number or a non-number and then tap the button." /> <TextBox x:Name="MyTextBox" Width="50" Margin="10"> <TextBox.Text> <Binding Mode="TwoWay" Source="{StaticResource MyBills}" Path="Amount" NotifyOnValidationError="true" ValidatesOnExceptions="true"/> </TextBox.Text> </TextBox> <Button Content="Tap to Update"/> </StackPanel>
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