public void TestMenu()
{
_grid.Menu();
AssertResult("onContextMenu:$.easyui.showTreeGridMenu_onContextMenu('')");
_grid.Menu("a");
AssertResult("onContextMenu:$.easyui.showTreeGridMenu_onContextMenu('a')");
_grid.Menu("a", "b");
AssertResult("onContextMenu:$.easyui.showTreeGridMenu_onContextMenu('a','b')");
}