private void ListBoxItemsMouseClick(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Right)
{
return;
}
var loc = ListBoxItems.PointToScreen(new Point(e.X, e.Y));
for (int i = 0; i < ListBoxItems.Items.Count; i++)
{
var rec = ListBoxItems.GetItemRectangle(i);
if (rec.X <= e.X && (rec.X + rec.Width) >= e.X && rec.Y <= e.Y && (rec.Y + rec.Height) >= e.Y)
{
ItemContextMenu.Items[0].Enabled = true;
ItemContextMenu.Items[2].Enabled = true;
ItemContextMenu.Items[3].Enabled = true;
ItemContextMenu.Items[4].Enabled = true;
ListBoxItems.ClearSelected();
ListBoxItems.SetSelected(i, true);
ItemContextMenu.Show(loc);
return;
}
}
ItemContextMenu.Items[0].Enabled = false;
ItemContextMenu.Items[3].Enabled = false;
ItemContextMenu.Items[4].Enabled = false;
ItemContextMenu.Show(loc);
}