在 DataGrid WPF 中获取选定的行项目 [英] Get selected row item in DataGrid WPF

问题描述

我有一个DataGrid，绑定到Database表，我需要在DataGrid中获取选中行的内容，比如我想在中显示MessageBox 所选行的内容.

I have a DataGrid, bound to Database table, I need to get the content of selected row in DataGrid, for example, I want to show in MessageBox content of selected row.

DataGrid 示例:

因此，如果我选择第二行，我的 MessageBox 必须显示如下内容:646 Jim Biology.

So, if I select the second row, my MessageBox has to show something like: 646 Jim Biology.

推荐答案

您可以使用 SelectedItem 属性来获取当前选定的对象，然后您可以将其转换为正确的类型.例如，如果您的 DataGrid 绑定到一组 Customer 对象，您可以这样做:

You can use the SelectedItem property to get the currently selected object, which you can then cast into the correct type. For instance, if your DataGrid is bound to a collection of Customer objects you could do this:

Customer customer = (Customer)myDataGrid.SelectedItem;

或者，您可以将 SelectedItem 绑定到您的源类或 ViewModel.

Alternatively you can bind SelectedItem to your source class or ViewModel.

<Grid DataContext="MyViewModel">
    <DataGrid ItemsSource="{Binding Path=Customers}"
              SelectedItem="{Binding Path=SelectedCustomer, Mode=TwoWay}"/>
</Grid>

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