protected override void OnKeyDown(KeyEventArgs e)
{
bool markHandled = ValueEditorUtils.GetHandlesCommitKeys(this);
if (e.Key == Key.Return || e.Key == Key.Enter)
{
LostFocusAction savedAction = this.lostFocusAction;
this.lostFocusAction = LostFocusAction.None;
if (savedAction == LostFocusAction.Commit)
{
this.CommitChange();
}
if ((e.KeyboardDevice.Modifiers & ModifierKeys.Shift) == 0)
{
this.OnFinishEditing();
}
e.Handled |= markHandled;
}
else if (e.Key == Key.Escape && this.IsEditing)
{
LostFocusAction savedAction = this.lostFocusAction;
this.lostFocusAction = LostFocusAction.None;
if (savedAction != LostFocusAction.None)
{
this.CancelChange();
}
this.OnFinishEditing();
e.Handled |= markHandled;
}
base.OnKeyDown(e);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
this.IsEditing = false;
ValueEditorUtils.ExecuteCommand(this.LostFocusCommand, this, null);
e.Handled = true;
}
private void CancelChange()
{
ValueEditorUtils.ExecuteCommand(this.BeginCommand, this, null);
ValueEditorUtils.UpdateBinding(this, StringEditor.ValueProperty, false);
ValueEditorUtils.ExecuteCommand(this.CancelCommand, this, null);
ValueEditorUtils.UpdateBinding(this, StringEditor.ValueProperty, UpdateBindingType.Target);
this.UpdateTextFromValue();
}
private void CommitChange()
{
ValueEditorUtils.ExecuteCommand(this.BeginCommand, this, null);
this.Value = this.Text;
ValueEditorUtils.ExecuteCommand(this.CommitCommand, this, null);
ValueEditorUtils.UpdateBinding(this, StringEditor.ValueProperty, UpdateBindingType.Target);
// Now update the text value in case the model or a binding has reformated
this.UpdateTextFromValue();
}
private void OnFinishEditing()
{
ICommand finishedEditingCommand = this.FinishEditingCommand;
if (finishedEditingCommand != null)
{
ValueEditorUtils.ExecuteCommand(finishedEditingCommand, this, null);
}
else
{
Keyboard.Focus(null);
}
}
public static void UpdateBinding(FrameworkElement element, DependencyProperty property, bool updateSource)
{
ValueEditorUtils.UpdateBinding(element, property, (updateSource ? UpdateBindingType.Both : UpdateBindingType.Target));
}