/// <summary>
/// Validates the current changes in the TextBox.
/// </summary>
public void Validate()
{
var cancelRoutedEventArgs = new CancelRoutedEventArgs(ValidatingEvent);
OnValidating(cancelRoutedEventArgs);
if (cancelRoutedEventArgs.Cancel)
return;
RaiseEvent(cancelRoutedEventArgs);
if (cancelRoutedEventArgs.Cancel)
return;
validating = true;
var coercedText = CoerceTextForValidation(Text);
SetCurrentValue(TextProperty, coercedText);
BindingExpression expression = GetBindingExpression(TextProperty);
if (expression != null)
expression.UpdateSource();
ClearUndoStack();
var validatedArgs = new ValidationRoutedEventArgs<string>(ValidatedEvent, coercedText);
OnValidated();
RaiseEvent(validatedArgs);
if (ValidateCommand != null && ValidateCommand.CanExecute(ValidateCommandParameter))
ValidateCommand.Execute(ValidateCommandParameter);
validating = false;
}
private void EditableTextBoxValidated(object sender, ValidationRoutedEventArgs<string> e)
{
// This may happens somehow when the template is refreshed.
if (!ReferenceEquals(sender, editableTextBox))
return;
var validatedArgs = new RoutedEventArgs(ValidatedEvent);
RaiseEvent(validatedArgs);
if (ClearTextAfterValidation)
{
clearing = true;
editableTextBox.Text = string.Empty;
clearing = false;
}
}
private void EditableTextBoxValidated(object sender, ValidationRoutedEventArgs<string> e)
{
if (!IsDropDownOpen && !clearing && IsKeyboardFocusWithin)
{
// Setting IsDropDownOpen to true will select all the text. We don't want this behavior, so let's save and restore the caret index.
var index = editableTextBox.CaretIndex;
IsDropDownOpen = true;
editableTextBox.CaretIndex = index;
}
}
