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我想将 DotNetBar SuperDataGrid Controll 中的一列呈现为一个组合框（更准确地说是一个GridComboBoxExEditControl）。SuperDataGrid连接到绑定源。在DataBindingComplete事件中，我有以下内容：

Private Sub SuperGrid_DataBindingComplete(ByVal sender As Object, ByVal e As DevComponents.DotNetBar.SuperGrid.GridDataBindingCompleteEventArgs) Handles SuperGrid.DataBindingComplete
    Dim panel As DevComponents.DotNetBar.SuperGrid.GridPanel
    panel = e.GridPanel

    panel.Columns("ArticleID").RenderType = GetType(MyComboBox)
    panel.Columns("ArticleID").RenderParams = New Object() {ArticleBindingSource, "Article", "Article"}

End Sub

MyComboBox 类如下：

Public Class MyComboBox
Inherits GridComboBoxExEditControl
Public Sub New(ByVal Bind As BindingSource, ByVal disp As String, ByVal val As String)
    DataSource = Bind
    DisplayMember = disp
    ValueMember = val
End Sub
End Class

这将导致以下结果： SuperDataGrid 在单元格中显示正确的值。如果呈现为“Article”，绑定是正确的，并且“ArticleID”的每个值。问题是当值从ArticleID = 1 to ArticleID = 2 (Article = "Article No1" 到 Article = "Artcle No2") 时，SuperDataGrid 会进入某种形式的无限循环，并且值开始在 1 和 2 之间移动。我做错了什么吗？如果有人能就这个问题提供一些建议，我将不胜感激。PS我也试过这个：

panel.Columns("ArticleID").EditorType = GetType(GridComboBoxExEditControl)
Dim art As GridComboBoxExEditControl = DirectCast(panel.Columns("ArticleID").EditControl, GridComboBoxExEditControl)
        art.DataSource = ArticleBindingSource
        art.DisplayMember = "Article"
art.ValueMember = "ArticleID"

得到了同样的结果。

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1 回答 1

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{ArticleBindingSource, "Article", "ArticleID"} 我认为 DisplayMember 和 ValueMember 的值相同时不正确

于 2013-02-26T19:18:49.493 回答