private void ItemButton_Click(object sender, RoutedEventArgs e)
{
ContextMenu cm = GridItem?.FindResource("ContextMenuItem") as ContextMenu;
if (cm != null)
{
cm.PlacementTarget = sender as Button;
cm.IsOpen = true;
}
}
private void ItemButton_Click(object sender, RoutedEventArgs e)
{
// access
ContextMenu cm = GridItem?.FindResource("ContextMenuItem") as ContextMenu;
var data = this.DataContext as DocumentEntity;
if (cm == null || data == null)
{
return;
}
// clear old items (very stupid)
while (cm.Items.Count > 4)
{
cm.Items.RemoveAt(4);
}
// add new items
if (data.Relations != null && data.Relations.Count > 0)
{
cm.Items.Add(new Separator());
foreach (var reltup in data.Relations)
{
var drt = reltup.Item1;
var re = reltup.Item2;
if (re == null || re.Count < 1)
{
continue;
}
var mi = new MenuItem();
mi.Header = "" + drt.ToString() + ": " + re.Last.value;
mi.Icon = " \x2794";
mi.Click += MenuItem_Click;
mi.Tag = reltup;
cm.Items.Add(mi);
}
}
// show
cm.PlacementTarget = sender as Button;
cm.IsOpen = true;
}