// Helper that tries to find the first applicable DialogPropertyValueEditor
private DialogPropertyValueEditor FindDialogPropertyValueEditor()
{
PropertyEntry property = this.PropertyEntry;
DialogPropertyValueEditor editor = null;
// Look at property
if (property != null)
{
editor = property.PropertyValueEditor as DialogPropertyValueEditor;
}
if (editor != null)
{
return(editor);
}
// Does the property have standard values?
if (property != null && property.HasStandardValuesInternal)
{
editor = this.DefaultStandardValuesPropertyValueEditor as DialogPropertyValueEditor;
}
if (editor != null)
{
return(editor);
}
// Use the default
editor = this.DefaultPropertyValueEditor as DialogPropertyValueEditor;
return(editor);
}
private static void OnActiveEditModePropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
{
PropertyContainer theThis = (PropertyContainer)obj;
// Ensure that the Template property of this control is set to the right ControlTemplate
UpdateControlTemplate(theThis);
// Invoke a dialog editor if needed
if (object.Equals(e.NewValue, PropertyContainerEditMode.Dialog))
{
if (OpenDialogWindow.CanExecute(null, theThis))
{
// There is someone who handles this command, so let it deal with it
// however it wants.
OpenDialogWindow.Execute(null, theThis);
}
else
{
// There is no-one handling this command, so see if there is a virtual
// method we can invoke
DialogPropertyValueEditor editor = theThis.FindDialogPropertyValueEditor();
if (editor != null)
{
// If the DialogCommandSource is not explicitly set, use this control as the
// command source
IInputElement dialogCommandSource = theThis.DialogCommandSource ?? theThis;
editor.ShowDialog(theThis.PropertyEntry.PropertyValue, dialogCommandSource);
}
}
// And revert back to old edit mode once done
theThis.ActiveEditMode = (PropertyContainerEditMode)e.OldValue;
}
}
