private void delGroup_Click(object sender, System.EventArgs e)
{
IXCTileset tSet = getCurrset();
GameInfo.TilesetInfo.Tilesets[tSet.Name] = null;
if(treeMaps.SelectedNode.Parent==null)
treeMaps.Nodes.Remove(treeMaps.SelectedNode);
else
{
if(treeMaps.SelectedNode.Parent.Parent==null)
treeMaps.Nodes.Remove(treeMaps.SelectedNode.Parent);
else
treeMaps.Nodes.Remove(treeMaps.SelectedNode.Parent.Parent);
}
//saveMapedit();
}