We are creating a WPF application in which we have to display nested datagrid. For this, we are using expander control. But, what happen is, our internal datagrid which is displaying on clicking of expander button, gets hidden behind our Main/Parent datagrid.We are creating a WPF application in which we h
阅读背景：
使用Expander Control显示嵌套的datagrid
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