Question

我正在使用PRISM和MEF框架。我有一个显示一些数据的数据网格，下面有 RowDetailsTemplate ，后者又有datagrid。现在，如果我尝试从RowDetailsTemplate下的datagrid中删除一行，则在删除操作后UI不会刷新。换句话说，该行被删除，但是剩下一个空的空间，并且当前行下面的行不会向上移动。

以下是代码段。

<Controls1:DataGrid x:Name="dgProposals"
 Grid.Row="1" ItemsSource="{Binding Items}" AutoGenerateColumns="False"   
  BorderThickness="0"
  CanUserResizeColumns="False" RowDetailsVisibilityMode="Visible">
<Controls1:DataGrid.Columns>
   <Controls1:DataGridTextColumn Binding="{Binding ProposalName}" Width="*"     
      CanUserSort="False" IsReadOnly="True" CanUserReorder="False" >              
    </Controls1:DataGridTextColumn>
    <Controls1:DataGridTextColumn Binding="{Binding DisplayProposalType}"
       Width="*" CanUserSort="False" IsReadOnly="True" CanUserReorder="False" >
    </Controls1:DataGridTextColumn>                
</Controls1:DataGrid.Columns>
<Controls1:DataGrid.RowDetailsTemplate >
    <DataTemplate>
       <Controls1:DataGrid x:Name="dgReports" ItemsSource="{Binding ReportList}"
    AutoGenerateColumns="False" BorderThickness="0"
    CanUserResizeColumns="False" HeadersVisibility="None">                        
          <Controls1:DataGrid.Columns>
              <Controls1:DataGridTextColumn Binding="{Binding Name}" Width="*" 
                 CanUserSort="False" IsReadOnly="True" CanUserReorder="False" >
              </Controls1:DataGridTextColumn>
              <Controls1:DataGridTemplateColumn Width="100" CanUserSort="False" 
                 CanUserReorder="False">
               <Controls1:DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                       <StackPanel Orientation="Horizontal" HorizontalAlignment="Left">                                            
                           <Button VerticalAlignment="Center" Cursor="Hand"
                               Command="{Binding DataSource.EditReportNameCommand, 
                               Source={StaticResource DataContextProxy}}"
                               CommandParameter="{Binding}" Margin="5,0">
                           </Button>
                         </StackPanel>
                     </DataTemplate>
                </Controls1:DataGridTemplateColumn.CellTemplate>
              </Controls1:DataGridTemplateColumn>
            </Controls1:DataGrid.Columns>
          </Controls1:DataGrid>
       </DataTemplate>
   </Controls1:DataGrid.RowDetailsTemplate>

BO代码段如下：

public class ProposalPreview : NotificationObject
{
    public string ProposalName { get; set; }
    public int PartyId { get; set; }
    public string PartyName { get; set; }       
    public string DisplayProposalType { get; set; }
    private ObservableCollection<ArchievedReport> reportList = null;
    public ObservableCollection<ArchievedReport> ReportList
    {
        get { return reportList; }
        set { reportList = value; }
    }
    public ProposalPreview()
    {

        ProposalName = "";            
        DisplayProposalType = String.Empty;            
        ReportList = new ObservableCollection<ArchievedReport>();
    }
}

public class ArchievedReport : NotificationObject
{
    private string name;
    public string Name
    {
        get { return name; }
        set
        {
            name = value;
            RaisePropertyChanged("Name");
        }
    }
    public int ReportId { get; set; } 
}

此处项目是ObservableCollection。

希望我对自己的描述很清楚。如果您需要更多信息，请告诉我。任何帮助是极大的赞赏。非常感谢你的时间。

谢谢，

麦迪。

Answer 1

删除行后，需要重新绑定数据源。

删除行后，DataGrid不会刷新

1 个答案: