Question

我有3个rad下拉列表。在页面加载ComBox_MDCList被禁用，直到选择其中一个下拉菜单索引=＆＃34;比萨＆＃34;。问题是，在第一个下拉列表启用后，如果选择了第二个下拉列表但不是= Pizza，它将再次禁用。只要1次下拉=比萨，我怎样才能启用ComBox_MDCList？

页面加载

Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
    ComBox_MDCList.Enabled = False
End Sub

sub叫

 Protected Sub MDCList()
        If (ComBox_Growth1.Text Or ComBox_Growth2.Text = "Pizza") Then
            ComBox_MDCList.Enabled = True
        Else
            ComBox_MDCList.Enabled = False
        End If
    End Sub

第一个投递框vb

  Protected Sub ComBox_Growth1_SelectedIndexChanged(sender As Object, e As RadComboBoxSelectedIndexChangedEventArgs) Handles ComBox_Growth1.SelectedIndexChanged

    If ComBox_Growth1.Text = "Pizza" Then
        MDCList()
    End If

End Sub

第二个投递框vb

Protected Sub ComBox_Growth2_SelectedIndexChanged(sender As Object, e As RadComboBoxSelectedIndexChangedEventArgs) Handles ComBox_Growth2.SelectedIndexChanged

    If ComBox_Growth2.Text = "Pizza" Then
        MDCList()
    End If

End Sub

Answer 1

尝试

Protected Sub MDCList()
     If (ComBox_Growth1.Text = "Pizza" Or ComBox_Growth2.Text = "Pizza") Then
         ComBox_MDCList.Enabled = True
     Else
         ComBox_MDCList.Enabled = False
     End If
End Sub

Protected Sub ComBox_Growth1_SelectedIndexChanged(sender As Object, e As RadComboBoxSelectedIndexChangedEventArgs) Handles ComBox_Growth1.SelectedIndexChanged
     MDCList()
End Sub

Protected Sub ComBox_Growth2_SelectedIndexChanged(sender As Object, e As RadComboBoxSelectedIndexChangedEventArgs) Handles ComBox_Growth2.SelectedIndexChanged
     MDCList()
End Sub

保持启用此组合框

1 个答案: