/// <summary>
/// 删除图层
/// </summary>
/// <param name="map"></param>
/// <param name="tree"></param>
/// <param name="cmd"></param>
private void DeleteLayer(MapImage map, MyTree tree, string[] cmd)
{
if (cmd.Length != 3)
{
return;
}
decimal layerid = GetId(cmd[2]);
TreeNode layernode = FindLayer(tree.Nodes[0], layerid);
if (layernode == null)
{
return;
}
//取得当前图层
VectorLayer layer = layernode.Tag as VectorLayer;
if (map.NeedSave && layer.NeedSave)
{
MapDBClass.DeleteLayer(map.Map.MapId, layer.ID);
}
//删除选择的图层
map.Map.Layers.Remove(layer);
TreeNode parentnode = layernode.Parent;
//删除选择的节点
tree.Nodes.Remove(layernode);
if (parentnode.Nodes.Count <= 0)
{
parentnode.Remove();
}
foreach (TreeNode node in tree.Nodes[0].Nodes)
{
if (node.Nodes.Count <= 0)
{
node.Remove();
}
}
}