Question

已解决感谢Clemens。我只需要添加＆＃34;属性＆＃34;在＆＃34; Public＆＃34;之后的属性在我的班级定义中：

在VB.NET中，我试图让一个非常简单的Datagrid示例工作（即没有数据库连接的示例等）。但无论我尝试什么，Datagrid始终显示正确的行数和列的更正数（以及正确的列标题），但单元格为空：

Public Class GeneratedImage
    Public Property AssignmentId As Integer
    Public Property DocumentPageNumber As Integer
    Public Property FullPathToImage As String

    Public Sub New(id As Integer, pg As Integer, docpath As String)
        AssignmentId = id
        DocumentPageNumber = pg
        FullPathToImage = docpath
    End Sub
End Class

Private Sub MainWindow_Loaded(sender As Object, e As System.Windows.RoutedEventArgs) Handles Me.Loaded
    Dim myList As New List(Of GeneratedImage)
    myList.Add(New GeneratedImage(1, 1, "c:\nowhere"))
    myList.Add(New GeneratedImage(2, 2, "c:\nowhere2"))
    GeneratedImagesInformationDatagrid.ItemsSource = myList
    ' GeneratedImagesInformationDatagrid.DataContext = myList
end sub

然后，在XAML中，我绑定如下：

<DataGrid x:Name="GeneratedImagesInformationDatagrid"
                              Height="500"
                              VerticalAlignment="Top"
                              ItemsSource="{Binding}"
                              Width="300">
   <DataGrid.Columns>
       <DataGridTextColumn Binding="{Binding Path=DocumentPageNumber}"
                              Header="Pg" />
       <DataGridTextColumn Binding="{Binding Path=AssignmentId}"
                              Header="Assignment Id" />
      <DataGridTextColumn Binding="{Binding Path=FullPathToImage}"
                              Header="Full Path To Image" />
    </DataGrid.Columns>
   </DataGrid>

我已尝试使用＆＃34; ItemsSource =＆＃34; {Binding}＆＃34;场。
任何帮助表示赞赏！

Answer 1

已解决感谢Clemens。我只需要在我的类定义中的“Public”一词之后添加“Property”属性：

Public Class GeneratedImage
    Public Property AssignmentId As Integer
    Public Property DocumentPageNumber As Integer
    Public Property FullPathToImage As String
          .
          . etc

等...

非常简单的Datagrid示例不起作用

1 个答案: