Use-Case Open a pop-up window on an click event in a viewModel with some param so that related data could be loaded in the pop-up. Now get the selected data-models from the pop-up window and return those params back to the parent view mode. Open a pop-up window on an click event
阅读背景：
如何将参数从子模型窗口传递给父视图模型
来源：互联网
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