Entity Framework/Linq에 의해 바인딩을 통해 ListView 항목을 추가하는 방법

Question

추가 방법 ListView 바인딩을 통해 Entity Framework/Linq를 통해 항목을 추가 하시겠습니까?

<ListView x:Name="lstvw_Overview" HorizontalAlignment="Left" Height="310" Margin="11,89,0,0" VerticalAlignment="Top" Width="676"> 
     <ListView.View> 
      <GridView> 
       <GridViewColumn Header="Adresse" DisplayMemberBinding="{Binding address}"/> 
      </GridView> 
     </ListView.View> 
</ListView> 

이

Public Sub New() 
    Initialize() 
End Sub 
Dim address As String 
Dim items As ObservableCollection(Of Uebersicht) 
Public Structure Uebersicht 
    Private _address As String 
    Public Property address As String 
     Get 
      Return _address 
     End Get 
     Set(value As String) 
      _address = value 
     End Set 
    End Property 
End Structure 
Sub Initialize() 
    InitializeComponent() 
    fillListView() 
End Sub 
Sub fillListView() 
    Using container As New infrastrukturDB_TESTEntities1 
     Dim mailAddressList = From tbl_unzustellbarAdressen In container.tbl_unzustellbarAdressen 
     For Each mail In mailAddressList 
      address = mail.unzustellbarMail.ToString() 
      Try 
       items.Add(New Uebersicht With {.address = address}) 
      Catch ex As Exception 
       MessageBox.Show("Error") 
      End Try 

     Next 
    End Using 
End Sub 

EDIT 내 코드는 다음과 같습니다 :

는 여기 바인딩으로 XAML에서 내 ListView을받은 ObserverableCollection을 시도했지만 지금은 NullReferenceException있어! 내가 디버깅 경우 는, 주소가 null가 아닌 데이터를 .. 가지고

Answer 1

당신이 ListView에 strings를 추가하기 때문에, 당신은 address 재산하지만 소스 개체 자체에 결합해서는 안 :

<ListView x:Name="lstvw_Overview" HorizontalAlignment="Left" Height="310" Margin="11,89,0,0" VerticalAlignment="Top" Width="676"> 
    <ListView.View> 
     <GridView> 
      <GridViewColumn Header="Adresse" DisplayMemberBinding="{Binding}"/> 
     </GridView> 
    </ListView.View> 
</ListView> 

편집 : 항목을 추가하려면 먼저 ObservableCollection을 초기화해야합니다. 그리고 ObservableCollection에 결합 할 수 있도록, 당신은 속성으로 노출해야합니다

Public Sub New() 
    Initialize() 
End Sub 

Dim address As String 

Private _items As ObservableCollection(Of Uebersicht) = New ObservableCollection(Of Uebersicht) 
Public Property Items As ObservableCollection(Of Uebersicht) 
    Get 
     Return _items 
    End Get 
    Set(value As ObservableCollection(Of Uebersicht)) 
     _items = value 
    End Set 
End Property 

Sub Initialize() 
    InitializeComponent() 
    DataContext = Me 
    fillListView() 
End Sub 

XAML : C#에서

<ListView ItemsSource="{Binding Items}" HorizontalAlignment="Left" Height="310" Margin="11,89,0,0" VerticalAlignment="Top" Width="676"> 
    <ListView.View> 
     <GridView> 
      <GridViewColumn Header="Adresse" DisplayMemberBinding="{Binding address}"/> 
     </GridView> 
    </ListView.View> 
</ListView>