VS10 调试器显示在 Silverlight 应用程序中找不到数据源列

Question

错误

System.Windows.Data Error: BindingExpression path error: 'secUserName' property not found on 'DevExpress.Xpf.Grid.EditGridCellData' 'DevExpress.Xpf.Grid.EditGridCellData' (HashCode=2852273). BindingExpression: Path='secUserName' DataItem='DevExpress.Xpf.Grid.EditGridCellData' (HashCode=2852273); target element is 'DevExpress.Xpf.Editors.TextEdit' (Name=''); target property is 'EditValue' (type 'System.Object')..
System.Windows.Data Error: BindingExpression path error: 'secUserName' property not found on 'DevExpress.Xpf.Editors.TextEdit' 'DevExpress.Xpf.Editors.TextEdit' (HashCode=19675928). BindingExpression: Path='secUserName' DataItem='DevExpress.Xpf.Grid.EditGridCellData' (HashCode=2852273); target element is 'DevExpress.Xpf.Editors.TextEdit' (Name=''); target property is 'EditValue' (type 'System.Object')..

vb.net

Public Sub New()
        InitializeComponent()
        Me.Title = ApplicationStrings.HomePageTitle

        '<!-- load the datagrid -->
        Module1._Context.Load(Module1._Context.GetGESECsQuery())
        GridControl1.DataSource = Module1._Context.GESECs
        GridControl1.DataContext = Module1._Context.GESECs

    End Sub

XAML

 <dxg:GridColumn Header="TRAIL" FieldName="secUserName" >
 <dxg:GridColumn.DisplayTemplate>
 <ControlTemplate>
 <StackPanel>
 <dxe:TextEdit  EditValue="{Binding  Path=secUserName}"></dxe:TextEdit>
 </StackPanel>
 </ControlTemplate>
 </dxg:GridColumn.DisplayTemplate>
 </dxg:GridColumn>

问题

当单击 edittext 时（通过将行置于编辑模式{铅笔图在其一侧}），将显示 SECUSERNAME 的内容，

但在仅显示记录的正常情况下，文本编辑不显示任何内容。

是的，调试器显示 secusername 无效，但为什么呢？我应该怎么做才能纠正这个问题？

Answer 1

请尝试按以下方式更改您的绑定代码：

"{Binding Path= DisplayText, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}"

它对您有用吗？