Question

我有一个函数fill_cboarea（用于填充名为cboarea的组合框）。此函数将在Form_load上调用。到达此fill_cboarea func 调试器到cboarea_SelectedValueChanged，因为我已经在其中写了一段代码。给出的是错误。

运营商'＆lt;＆gt;'未定义类型“DataRowView”并键入“Integer
”

Answer 1

您需要查看cboarea_SelectedValueChanged
即

Private Sub cboarea_SelectedValueChanged(ByVal sender As Object, ByVal e As 
                             System.EventArgs) Handles cboarea.SelectedValueChanged

    Dim item As DataRowView = TryCast(Me.cboarea.SelectedItem, DataRowView)    
    If item.IsEdit = False Then'check whether the cboarea is in edit mode (on load)
       'here your some piece of code
    End If
End Sub

VB.NET：表单加载时组合框的SelectedValueChanged事件出错

1 个答案: