protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
if (!e.Handled)
{
Key key = e.Key;
switch (key)
{
case Key.Left:
if (IsExpanded)
{
IsExpanded = false;
}
e.Handled = true;
break;
case Key.Right:
IsExpanded = true;
e.Handled = true;
break;
case Key.Up:
ParentTreeView.SelectPreviousFromKey();
e.Handled = true;
break;
case Key.Down:
ParentTreeView.SelectNextFromKey();
e.Handled = true;
break;
case Key.Add:
if (IsExpandableOnInput && !IsExpanded)
{
IsExpanded = true;
}
e.Handled = true;
break;
case Key.Subtract:
if (IsExpandableOnInput && IsExpanded)
{
IsExpanded = false;
}
e.Handled = true;
break;
case Key.F2:
e.Handled = StartEditing();
break;
case Key.Escape:
case Key.Return:
StopEditing();
e.Handled = true;
break;
case Key.Space:
ParentTreeView.SelectCurrentBySpace();
e.Handled = true;
break;
case Key.Home:
ParentTreeView.SelectFirst();
e.Handled = true;
break;
case Key.End:
ParentTreeView.SelectLast();
e.Handled = true;
break;
}
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
if (e.Handled)
{
return;
}
switch (e.Key)
{
case Key.Add:
if (CanExpandOnInput && !IsExpanded)
{
SetCurrentValue(IsExpandedProperty, true);
e.Handled = true;
}
break;
case Key.Subtract:
if (CanExpandOnInput && IsExpanded)
{
SetCurrentValue(IsExpandedProperty, false);
e.Handled = true;
}
break;
case Key.Left:
case Key.Right:
if (LogicalLeft(e.Key))
{
if (CanExpandOnInput && IsExpanded)
{
if (IsFocused)
{
SetCurrentValue(IsExpandedProperty, false);
}
else
{
Focus();
}
}
else
{
ParentTreeView.SelectParentFromKey();
}
}
else
{
if (CanExpandOnInput)
{
if (!IsExpanded)
{
SetCurrentValue(IsExpandedProperty, true);
}
else
{
ParentTreeView.SelectNextFromKey();
}
}
}
e.Handled = true;
break;
case Key.Down:
ParentTreeView.SelectNextFromKey();
e.Handled = true;
break;
case Key.Up:
ParentTreeView.SelectPreviousFromKey();
e.Handled = true;
break;
case Key.F2:
e.Handled = StartEditing();
break;
case Key.Escape:
case Key.Return:
StopEditing();
e.Handled = true;
break;
case Key.Space:
ParentTreeView.SelectCurrentBySpace();
e.Handled = true;
break;
case Key.Home:
ParentTreeView.SelectFirst();
e.Handled = true;
break;
case Key.End:
ParentTreeView.SelectLast();
e.Handled = true;
break;
}
}