private void ruleListView_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
ListViewItem item = Utilities.GetVisualParent<ListViewItem>((UIElement)Mouse.DirectlyOver);
if (item == null) return;
Cdsrule rule = item.Content as Cdsrule;
if (rule != null)
{
cdsruleG = rule;
EditCdsrule(rule);
}
}