Question

我有以下xaml，我试图绑定到我的班级。我无法让值显示出来。任何人都可以指出我所缺少的方向。提前谢谢。

 Dim frm As New EditPart
    frm.DataContext = New SelectedPart(_CPPartPicker.Selected_Part, "ABC")
    frm.Show()

 Class SelectedPart
Property Part_Key As Integer
Property Part_Id As String
Property Part_Rev As String
Property Whse As String
Property Part_Description As String
Sub New(Part As SNC.SL.Common.CP_Item.CP_Item_Lookup_Version_1Item_Lookup_Response, Whse As String)
    Part_Key = Part.ITEM_KEY
    Part_Id = Part.ITEM_ID
    Part_Rev = Part.ITEM_RVSN_ID
    Whse = Whse
    Part_Description = Part.ITEM_DESC
End Sub

结束班

  <Grid x:Name="LayoutRoot" Margin="2">
    <Grid.RowDefinitions>
        <RowDefinition />
        <RowDefinition Height="Auto" />
    </Grid.RowDefinitions>
    <sdk:Label Content="{Binding Path=Part_Id, StringFormat='Part ID: \{0}'}" />
    <sdk:Label Content="{Binding Path=Part_Rev, StringFormat='Part Rev: \{0}'}" />
    <sdk:Label Content="{Binding Path=Part_Description, StringFormat='Description: \{0}'}"/>

        <Button x:Name="CancelButton" Content="Cancel" Width="75" Height="23" HorizontalAlignment="Right" Margin="0,12,0,0" Grid.Row="1" />
    <Button x:Name="OKButton" Content="OK" Width="75" Height="23" HorizontalAlignment="Right"  Margin="0,12,79,0" Grid.Row="1" />
</Grid>

在输出窗口中，我收到以下错误消息：

无法从'SNC.CommonStock.SelectedPart'获取'Part_Id'值（类型'System.String'）（输入'SNC.CommonStock.SelectedPart'）。 BindingExpression：Path ='Part_Id'DataItem ='SNC.CommonStock.SelectedPart'（HashCode = 53866394）; target元素是'System.Windows.Controls.Label'（Name =''）; target属性为'Content'（类型'System.Object'）.. System.MethodAccessException：尝试通过方法'System.Windows.CLRPropertyListener.get_Value（）'访问方法'SNC.CommonStock.SelectedPart.get_Part_Id（）'失败。

Answer 1

目前标签都是彼此重叠的，如果没有说明，那么你可能看不到任何内容。将标签放在StackPanel。

中

Answer 2

我不得不把我绑定到公开的课程

Xaml数据绑定

2 个答案: