17

我有一个DataGrid. 它有DataGrid.RowDetailsTemplate. 单击按钮时，它应该展开/折叠；我该怎么做？

<Custom:DataGrid RowDetailsVisibilityMode="VisibleWhenSelected" SelectionMode="Extended" CanUserAddRows="False" CanUserDeleteRows="False" CanUserResizeRows="False" CanUserSortColumns="False">
    <Custom:DataGrid.RowDetailsTemplate>
        <DataTemplate>
            <Custom:DataGrid>
                <Custom:DataGrid.Columns>
                    <Custom:DataGridTextColumn Binding="{Binding idClient, Mode=Default}" Header="Ид" IsReadOnly="True"/>
                    <Custom:DataGridTextColumn Binding="{Binding name_client, Mode=Default}"  Header="Имя" IsReadOnly="True"/>
                </Custom:DataGrid.Columns>
            </Custom:DataGrid>
        </DataTemplate>
    </Custom:DataGrid.RowDetailsTemplate>
    <Custom:DataGrid.Columns>
        <Custom:DataGridTemplateColumn>
            <Custom:DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <Expander IsExpanded="True"/>
                </DataTemplate>
            </Custom:DataGridTemplateColumn.CellTemplate>
        </Custom:DataGridTemplateColumn>
        <Custom:DataGridTextColumn Binding="{Binding idPartner, Mode=Default}" Header="Ид" IsReadOnly="True"/>
        <Custom:DataGridTextColumn Binding="{Binding name_partner, Mode=Default}"  Header="Имя" IsReadOnly="True"/>
    </Custom:DataGrid.Columns>
</Custom:DataGrid>
4

5 回答 5

30

检查这个...

将按钮添加到 WPF DataGrid

或者

XAML： 

<DataGrid Name="dg1" AutoGenerateColumns="False" SelectionMode="Single" CanUserAddRows="false" CanUserDeleteRows="False" SelectionUnit="FullRow" >
    <DataGrid.CellStyle>
        <Style TargetType="DataGridCell">
            <Setter Property="BorderThickness" Value="0"/>
        </Style>
    </DataGrid.CellStyle>

    <DataGrid.RowHeaderTemplate>
        <DataTemplate>
            <Expander Expanded="Expander_Expanded" Collapsed="Expander_Collapsed">

            </Expander>
        </DataTemplate>
    </DataGrid.RowHeaderTemplate>

    <DataGrid.Columns>
        <DataGridTextColumn Header="Name" IsReadOnly="True" Width="100" Binding="{Binding Name}" />
        <DataGridTextColumn Header="Title" IsReadOnly="True" Width="100" Binding="{Binding Title}" />
        <DataGridTextColumn Header="Job" IsReadOnly="True" Width="100" Binding="{Binding Job}" />
    </DataGrid.Columns>

    <DataGrid.RowDetailsTemplate>
        <DataTemplate>
            <TextBlock Text="{Binding Isi, Converter={StaticResource ResourceKey=isiTextConverter}}" Margin="10,5,0,0" />
        </DataTemplate>
    </DataGrid.RowDetailsTemplate>
</DataGrid>

主窗口.xaml.cs

private void Expander_Expanded(object sender, RoutedEventArgs e)
{
    for (var vis = sender as Visual; vis != null; vis = VisualTreeHelper.GetParent(vis) as Visual)
    if (vis is DataGridRow)
    {
        var row = (DataGridRow)vis;
        row.DetailsVisibility = row.DetailsVisibility == Visibility.Visible ? Visibility.Collapsed : Visibility.Visible;
        break;
    }
}

private void Expander_Collapsed(object sender, RoutedEventArgs e)
{
    for (var vis = sender as Visual; vis != null; vis = VisualTreeHelper.GetParent(vis) as Visual)
        if (vis is DataGridRow)
        {
            var row = (DataGridRow)vis;
            row.DetailsVisibility = row.DetailsVisibility == Visibility.Visible ? Visibility.Collapsed : Visibility.Visible;
            break;
        }
}

输出

在此处输入图像描述

于 2014-04-02T18:28:15.523 回答
1

在 Grid 上选择一行应该使用 RowDetailsTemplate 展开该行以显示内容。这使该行成为选定行并设置 DataGrid 的 SelectedIndex 属性的值。

要折叠 Row，请将 DataGrid 的 SelectedIndex 属性设置为 -1。

于 2010-11-26T09:33:03.300 回答
1

包括折叠和展开的事件，如下所示 

   <Custom:DataGridTemplateColumn>
   <Custom:DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <Expander Collapsed="exp_Collapsed" Expanded="exp_Expanded"/>
            </DataTemplate>
        </Custom:DataGridTemplateColumn.CellTemplate>
    </Custom:DataGridTemplateColumn>

在后面的代码中

 private void exp_Collapsed(object sender, RoutedEventArgs e)
        {
            this.dataGrid1.RowDetailsVisibilityMode = DataGridRowDetailsVisibilityMode.Collapsed;
        }

        private void exp_Expanded(object sender, RoutedEventArgs e)
        {
            this.dataGrid1.RowDetailsVisibilityMode = DataGridRowDetailsVisibilityMode.VisibleWhenSelected;
        }
于 2013-01-24T09:32:29.760 回答
1

我已经改进了以前的答案：

而不是使用 DataGrid.RowHeaderTemplate 使用 DataGridTemplateColumn 如下：

<DataGridTemplateColumn>
   <DataGridTemplateColumn.CellTemplate>
          <DataTemplate>
                <Expander Expanded="Expander_OnExpanded"     Collapsed="Expander_OnCollapsed">
                </Expander>
           </DataTemplate>
   </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>

好处是您无需在单击扩展按钮后重新定位鼠标。

于 2016-08-31T11:13:26.393 回答
1

无需遍历树以从扩展器中查找数据网格行，而是使用GetRowContainingElement在DataGridRow. 如：

private void Expander_Process(object sender, RoutedEventArgs e)
{
    if (sender is Expander expander)
    {
        var row = DataGridRow.GetRowContainingElement(expander);

        row.DetailsVisibility = expander.IsExpanded ? Visibility.Visible 
                                                    : Visibility.Collapsed;
    }
}

然后扩展器对每个事件只有一个方法调用：

 <Expander Expanded="Expander_Process"  Collapsed="Expander_Process" />
于 2019-12-18T11:26:57.543 回答