/// <summary>
/// 删除元素
/// </summary>
/// <param name="map"></param>
/// <param name="tree"></param>
/// <param name="cmd"></param>
private void DeleteObject(MapImage map, MyTree tree, string[] cmd)
{
if (cmd.Length != 4)
{
return;
}
decimal layerid = GetId(cmd[2]);
decimal objectid = GetId(cmd[3]);
TreeNode layernode = FindLayer(tree.Nodes[0], layerid);
TreeNode objectnode = FindObject(layernode, layerid, objectid);
if (objectnode == null)
{
return;
}
//取得当前图层
VectorLayer layer = layernode.Tag as VectorLayer;
//如果有当前选择区域，则从图层中删除
if (map.NeedSave && layer.NeedSave)
{
MapDBClass.DeleteObject(map.Map.MapId, layerid, objectid, layer.Type);
}
((GeometryProvider)layer.DataSource).Geometries.Remove(objectnode.Tag as Geometry);
tree.Nodes.Remove(objectnode);
}