获取DataGrid行指定列值

1.获取选中行

2.选中行转换为DataRowView

3.获取指定列

示例代码

//dg为DataGrid控件名称
if (null != dg.SelectedItem) {
	DataRowView drv = dg.SelectedItem as DataRowView;
	var id = drv["id"].ToString();
}