VS10调试器表示无法在Silverlight应用程序中找到数据源列 [英] The VS10 debugger says it cannot find the datasource column in Silverlight application

问题描述

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

单击编辑文本时(通过将行置于编辑模式(侧面有铅笔图)，将显示SECUSERNAME的内容

Problem

When the edittext is clicked (there by bringing the row in edit mode {with the pencil diagram on its side}) the content of the SECUSERNAME is displayed

但是在仅显示记录的正常情况下，textedit不会显示任何内容.

But in the normal condition of just displaying the records, the textedit does not display anything.

是的，调试器显示secusername无效，但是为什么?我应该怎么做才能做到这一点?

Yes, the debugger show that the secusername is not valid, but why? What should I do to make this right?

推荐答案

请尝试如下更改绑定代码:

Please try to change your binding code as follows:

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

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