ValidationErrorEventArgs Class
Provides data for the BindingValidationError event.
System.EventArgs
System.Windows.RoutedEventArgs
System.Windows.Controls.ValidationErrorEventArgs
Namespace: System.Windows.Controls
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.
private void StackPanel_BindingValidationError(object sender, ValidationErrorEventArgs e) { if (e.Action == ValidationErrorEventAction.Added) { MyTextBox.Background = new SolidColorBrush(Colors.Red); } else if (e.Action == ValidationErrorEventAction.Removed) { MyTextBox.Background = new SolidColorBrush(Colors.White); } }
<StackPanel BindingValidationError="StackPanel_BindingValidationError" > <StackPanel.Resources> <my:Bills x:Name="MyBills"/> </StackPanel.Resources> <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 Height="50" Width="150" Content="Click To Update Source"/> </StackPanel>
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.



