DataGrid如何动态添加行详细信息模板

[-汪帆-]

Xaml结构如下：

        <DataGrid Name="datagrid" RowHeaderWidth="30" Margin="10" ItemsSource="{Binding}" AutoGenerateColumns="False" RowDetailsVisibilityChanged="datagrid_RowDetailsVisibilityChanged" SelectionMode="Single" RowBackground="#FF7BB2AD" AreRowDetailsFrozen="True" MouseDown="datagrid_MouseDown" >
            <DataGrid.Columns>
                <DataGridTextColumn Header="编号" Binding="{Binding Id}" Width="100" IsReadOnly="True"></DataGridTextColumn>
                <DataGridTextColumn Header="姓名" Binding="{Binding Name}" Width="100" IsReadOnly="True"></DataGridTextColumn>
            </DataGrid.Columns>
            <DataGrid.RowDetailsTemplate>
                <DataTemplate>
                    <DataGrid HeadersVisibility="None" AutoGenerateColumns="False">
                        <DataGrid.Columns>
                            <DataGridTextColumn Binding="{Binding Id}" Width="100" IsReadOnly="True"></DataGridTextColumn>
                            <DataGridTextColumn Binding="{Binding Name}" Width="100" IsReadOnly="True"></DataGridTextColumn>
                        </DataGrid.Columns>
                    </DataGrid>
                </DataTemplate>
            </DataGrid.RowDetailsTemplate>
        </DataGrid>

数据源结构如下：

    public class A
    {
        private int id;

        public int Id
        {
            get { return id; }
            set { id = value; }
        }

        private string name;

        public string Name
        {
            get { return name; }
            set { name = value; }
        }

        private List<A> aList = new List<A>();

        public List<A> AList
        {
            get { return aList ; }
            set { aList = value; }
        }
}

由于DataGrid中的展开层级是无限级的，模板DataGrid的下面还可能会有模板，所以在Xaml中写固定的<DataGrid.RowDetailsTemplate>无法满足需求。
如何根据数据源List<A>的情况，动态的增加RowDetailsTemplate？

[郑州高新区WPF小王子]

在后台遍历，动态初始化DataGrid以及column 添加到 rowDetailsTemplate。 前台的xaml 都可以转成后台。

[郑州高新区WPF小王子]

引用 2 楼 strWangFan 的回复:

        private DataTemplate CreateDataGridTemplate()
        {
            DataTemplate template = new DataTemplate();

            FrameworkElementFactory dataGridFactory = new FrameworkElementFactory(typeof(DataGrid));

            dataGridFactory.SetValue(DataGrid.AutoGenerateColumnsProperty, true);
            dataGridFactory.SetValue(DataGrid.HeadersVisibilityProperty, DataGridHeadersVisibility.None);
            // 绑定datagrid_RowDetailsVisibilityChanged
            dataGridFactory.AddHandler(？, new EventHandler<DataGridRowDetailsEventArgs>(datagrid_RowDetailsVisibilityChanged));
            template.VisualTree = dataGridFactory; 
            return template;
        }

这个方法可以动态创建模板，但是怎么绑定详细信息展开事件呢

dataGridFactory.AddHandler() 里边需要事件参数，具体自己查询。

[-汪帆-]

        private DataTemplate CreateDataGridTemplate()
        {
            DataTemplate template = new DataTemplate();

            FrameworkElementFactory dataGridFactory = new FrameworkElementFactory(typeof(DataGrid));

            dataGridFactory.SetValue(DataGrid.AutoGenerateColumnsProperty, true);
            dataGridFactory.SetValue(DataGrid.HeadersVisibilityProperty, DataGridHeadersVisibility.None);
            // 绑定datagrid_RowDetailsVisibilityChanged
            dataGridFactory.AddHandler(？, new EventHandler<DataGridRowDetailsEventArgs>(datagrid_RowDetailsVisibilityChanged));
            template.VisualTree = dataGridFactory; 
            return template;
        }

这个方法可以动态创建模板，但是怎么绑定详细信息展开事件呢