/// <summary>
/// Handles preview mouse down event
/// </summary>
/// <param name="e">The event args</param>
protected override void OnPreviewMouseDown(MouseButtonEventArgs e)
{
if (!this.IsSelected)
{
// unselect all other items of same level and selected this item
ControlHelper.FindParentCanvas(this).ClearSelection();
this.IsSelected = true;
}
this.Focus();
e.Handled = false;
}
/// <summary>
/// Handles preview mouse down event
/// </summary>
/// <param name="e">The event args</param>
protected override void OnPreviewMouseDown(MouseButtonEventArgs e)
{
if (!this.IsSelected)
{
// unselect all other items of same level and selected this item
var parentCanvas = ControlHelper.FindParentCanvas(this);
parentCanvas.ClearSelection();
OmrChoiceBox grandParentCanvas = ControlHelper.FindParentChoiceBox(parentCanvas);
if (grandParentCanvas.IsSelected)
{
this.IsSelected = true;
}
}
//this.Focus();
e.Handled = false;
}
/// <summary>
/// Handles preview mouse down event
/// </summary>
/// <param name="e">The event args</param>
protected override void OnPreviewMouseDown(MouseButtonEventArgs e)
{
base.OnPreviewMouseDown(e);
// update selection
if ((Keyboard.Modifiers & (ModifierKeys.Shift | ModifierKeys.Control)) != ModifierKeys.None)
{
// if key modifiers used -> reverse selection (select if was unselected and vice versa)
this.IsSelected = !this.IsSelected;
}
else if (!this.IsSelected)
{
// no modifiers used and item wasn't selected -> clear selection on canvas and select item
ControlHelper.FindParentCanvas(this).ClearSelection();
this.IsSelected = true;
}
this.Focus();
e.Handled = false;
}