Silverlight自動完成框

Question

我有我的自動完成框的下面的代碼，我正在嘗試做我覺得很簡單。我有一個用戶和用戶ID列表。我希望用戶輸入「jim」並查看「jim」，但將我的值綁定到user_id，例如「3」，然後當表單重新加載時將值綁定到「3」但顯示「jim」

這是可能，如果是的話，我在下面做了什麼不正確的？

在此先感謝

Public Class ADUsersConverter 
Implements IValueConverter 


Public Function Convert(value As Object, targetType As Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object Implements IValueConverter.Convert 
    If value Is Nothing Then Return Nothing 
    Dim u As SER_User.usp_Get_All_Active_usersResult = TryCast(value, SER_User.usp_Get_All_Active_usersResult) 
    If Not u Is Nothing Then Return u.Display_Name 
End Function 
Public Function ConvertBack(value As Object, targetType As Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object Implements IValueConverter.ConvertBack 
    Return Nothing 
End Function 

末級

「XAML

<sdk:AutoCompleteBox Name="acb_reviewedby" HorizontalAlignment="Stretch" Grid.Column="6" Grid.Row="3" Margin="5" Text="{Binding Path=Reviewed_By, Mode=TwoWay}" MinimumPopulateDelay="500" ValueMemberBinding="{Binding Converter={StaticResource ADUsersConvert}}"> 
         <sdk:AutoCompleteBox.ItemTemplate> 
          <DataTemplate> 
           <TextBlock Text="{Binding Display_Name}"></TextBlock> 
          </DataTemplate> 
         </sdk:AutoCompleteBox.ItemTemplate> 
        </sdk:AutoCompleteBox> 

Answer 1

我建議實施這種行爲的最好辦法是增加EventTrigger爲Populating事件並手動選擇所需用戶。