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我有一个简短的问题:

我有一个数据网格并将其绑定到某个东西。然后我将一个组合框放在一个列中,并将其绑定到另一个源

ItemsSource="{Binding DataContext.Users, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type DataGrid}}}" 

现在我想再次在组合框中使用 datagrid 的源。该代码现在不起作用,我知道 datagrid 的源中有一个 ID 列。

SelectedValue="{Binding ID}"

我该如何解决?提前致谢。

这是我的整个 DataGrid,有问题的部分是组合框。

 <DataGrid ItemsSource="{Binding SCs}" SelectedItem="{Binding SelectedSC}" Margin="0,10,0,0"
            RowStyle="{StaticResource ResourceKey=DataGridRowStyle}" Style="{DynamicResource ResourceKey=UILDataGridStyle}" AutoGenerateColumns="False" EnableRowVirtualization="True" 
            RowDetailsVisibilityMode="VisibleWhenSelected" Width="Auto" IsReadOnly="True" Background="Transparent"
            VerticalAlignment="Stretch" HorizontalAlignment="Stretch" GridLinesVisibility="Vertical" VerticalGridLinesBrush="{DynamicResource ResourceKey=UILBorderBrush}"
            RowHeaderWidth="0" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto" BorderBrush="{DynamicResource ResourceKey=UILBorderBrush}"
            BorderThickness="1" SelectionUnit="FullRow" SelectionMode="Single" x:Name="SCDataGrid">
        <DataGrid.Columns>
            <DataGridTextColumn x:Name="securityConfigurationIDColumn"  Binding="{Binding Path=SecurityConfigurationID}" Header="Security Configuration ID" Width="*" />
            <DataGridTextColumn x:Name="securityConfigurationNameColumn" Binding="{Binding Path=SecurityConfigurationName}"  Header="Security Configuration Name" Width="*" />
            <DataGridTemplateColumn x:Name="proxyResponsibleUser_IDColumn"   Header="Proxy Responsible User ID" Width="*" >
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <ComboBox IsEnabled="True"  ItemsSource="{Binding DataContext.Users, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type DataGrid}}}"
                                  SelectedValuePath="{Binding UserID}"  DisplayMemberPath="{Binding FullName}" Width="117" Height="20" 
                                  SelectedValue="{Binding ProxyResponsibleUser_ID, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ComboBox}}, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" />

                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>

            <DataGridTextColumn x:Name="responsibleUser_IDColumn" Binding="{Binding Path=User.FullName}" Header="Responsible User ID" Width="*" />
            <DataGridTextColumn x:Name="securityConfigurationDescriptionColumn" Binding="{Binding Path=SecurityConfigurationDescription}" Header="Security Configuration Description" Width="*" />
            <DataGridTextColumn x:Name="securityConfigurationURLColumn" Binding="{Binding Path=SecurityConfigurationURL}" Header="Security Configuration URL" Width="*" />
        </DataGrid.Columns>
    </DataGrid> 
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1 回答 1

1

使用下面的单元格模板作为组合框。

此代码将整个网格数据源绑定到组合框模板,它允许您使用任何属性而无需进行查找祖先的杂耍。

<DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <Grid DataContext="{Binding }">
                       <ComboBox IsEnabled="True"  
                              ItemsSource="{Binding Users}"                   
                              SelectedValuePath="{Binding UserID}"  
                              DisplayMemberPath="{Binding FullName}"
                              Width="117" Height="20"  
                              SelectedValue="{Binding ProxyResponsibleUser_ID,
                             UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"/>
                    </Grid>
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
于 2010-09-02T08:29:31.983 回答