DataGrid 添加自增序号

 

前台xaml:

响应LoadingRow事件，绑定了DataGridRow.Header属性，然后为Header属性赋值。RowHeaderWidth = 0是把默认的行表头隐藏掉，用自己绑定的列。

<DataGrid Grid.Row="1" ItemsSource="{Binding WeaponStateNumModels}" Margin="2" RowHeaderWidth="0" LoadingRow="DataGrid_LoadingRow">
    <DataGrid.Columns>
        <DataGridTextColumn Header="序号" Width="80" Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type DataGridRow}},Path=Header}"/>
        <DataGridTextColumn Header="名称" Width="*"/>
        <DataGridTextColumn Header="类型" Width="*" />
        </DataGridTemplateColumn>
    </DataGrid.Columns>
</DataGrid>

后台代码：

        private void DataGrid_LoadingRow(object sender, DataGridRowEventArgs e)
        {
            e.Row.Header = e.Row.GetIndex() + 1;
        }