/// <summary>
/// Ends the editing. Events are unwired, and the adorner is removed from the adorner layer.
/// </summary>
private void EndEditing()
{
if (null == _adorner)
{
return;
}
_adorner.EditingFinished -= EhEditingFinished;
// Processing order important here
// because setting the Text dependency property can cause updates of the ItemsControl, set this property at the very end
// before this, dispose all the plumbing neccessary in edit mode
bool validationHasErrors = _adorner.ValidationHasErrors;
string textBoxText = _adorner.EditedText;
var layer = AdornerLayer.GetAdornerLayer(this);
if (null != layer)
{
layer.Remove(_adorner);
}
_adorner = null;
if (!validationHasErrors)
{
// update the Text roperty with the new text box value
SetValue(TextProperty, textBoxText);
}
}
/// <summary>
/// Begins the editing. Here, the adorner is created and added to the adorner layer, and events to the editing text box are wired.
/// </summary>
private void BeginEditing()
{
var layer = AdornerLayer.GetAdornerLayer(this);
_adorner = new TextEditingAdorner(this, Text, TextBoxStyle, TextBoxValidationRule);
layer.Add(_adorner);
_adorner.EditingFinished += EhEditingFinished;
}
