主题：[求助]查询

请问错在哪里。

这是错误提示（无法将类型为“Foxtable.WinForm.RadioButton”的对象强制转换为类型“Foxtable.WinForm.ComboBox”。）

这是查询代码Dim cmb1 As WinForm.ComboBox = e.Form.Controls("radweixian")
Dim cmb2 As WinForm.ComboBox = e.Form.Controls("raddanwei")
If e.Form.Controls("radweixian").Checked = True
    Dim Filter As String = ""
    With e.Form.Controls("radweixian")
        If .Value IsNot Nothing Then
            Filter = "危险级别= '" & .Value & "'"
        End If
    End With
    With e.Form.Controls("Comliebie")
        If .Value IsNot Nothing Then
            If Filter > "" Then
                Filter = Filter & " And "
            End If
            Filter = Filter & "bh= '" & .Value & "'"
        End If
    End With
ElseIf e.Form.Controls("raddanwei").Checked = True

    Dim Filter As String = ""
    With e.Form.Controls("Comliebie")
        If .Value IsNot Nothing Then
            Filter = "wzmc= '" & .Value & "'"
        End If
    End With
    With e.Form.Controls("Comliebie")
        If .Value IsNot Nothing Then
            If Filter > "" Then
                Filter = Filter & " And "
            End If
            Filter = Filter & "bh= '" & .Value & "'"
        End If
    End With

End If