Question

我第一次使用海关检查员,但似乎没有发射日期。服务器仪表和刚在Click行动中操作该代码。

现在,我好好几小时! 谁能看一看问题做什么?

The DropDownList in my Code below is populationed using Roles.Get AllRoles()

ASP. NET

<asp:Label ID="lUserRole" runat="server" AssociatedControlID="tUserRole">User Role:</asp:Label>
<asp:DropDownList ID="tUserRole" runat="server" CausesValidation="True">
</asp:DropDownList>

<asp:Label ID="lDateExpire" runat="server" AssociatedControlID="tDateExpire">Date Expire:</asp:Label>
<asp:TextBox ID="tDateExpire" runat="server"></asp:TextBox>
<asp:CustomValidator ID="DateExpireRequired" runat="server"
                ControlToValidate="tDateExpire" ErrorMessage="Date Expire is required for  Users ." OnServerValidate="DateExpireRequired_ServerValidate"
                ToolTip="Date Expire is required for  Users ." CssClass="frmError"></asp:CustomValidator>

CODE BEHIND

    Sub DateExpireRequired_ServerValidate(source As Object, args As System.Web.UI.WebControls.ServerValidateEventArgs)

    If tUserRole.SelectedValue = "User" Then
        If tDateExpire.Text <> "" Then
            args.IsValid = False
        Else
            args.IsValid = True
        End If
    Else
        args.IsValid = True
    End If

End Sub

感谢J。

Answer 1

答案与上文Mendno van den Heuvel的评论一样:

Do you have validateemptytext set to True? I see that you check for an empty string in your event handler, but the event handler won t be run if the bound control s value is empty.

Answer 2

您的习惯有效者定义中有Enabled=“false”。我认为这不利于这一有效者。

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