验证两个日期的CompareValidator

Question

嗨，我有以下格式的日期格式，dd-MMM-yy，我使用比较验证器来验证日期，如下所示

<asp:CompareValidator ID="cmpDates" runat="server" ControlToValidate="StartDate"
                      SetFocusOnError="true" ControlToCompare="EndDate"
                      ErrorMessage="EndDate must be greater than StartDate"
                      Display="None" Operator="DataTypeCheck"
                      ValidationGroup="vg" Type="Date"                           
                      CultureInvariantValues="true">
</asp:CompareValidator>

但这不是按要求工作的，所以有人可以帮助我如何以所需的格式验证日期？

Answer 1

尝试一下，这里我们使用Ajax calander控件获得dd/mm/yyyy格式的输入，然后使用比较验证器

 <asp:TextBox ID="txtStart" runat="server"></asp:TextBox>
            <cc1:CalendarExtender ID="txtStart_CalendarExtender" runat="server" 
                Enabled="True" TargetControlID="txtStart">
            </cc1:CalendarExtender>
            <asp:CompareValidator ID="CompareValidator1" runat="server" 
                ControlToCompare="txtEnd" ControlToValidate="txtStart" 
                ErrorMessage="CompareValidator"></asp:CompareValidator>

        </div>
        <p>
            <asp:TextBox ID="txtEnd" runat="server"></asp:TextBox>
            <cc1:CalendarExtender ID="txtEnd_CalendarExtender" runat="server" 
                Enabled="True" TargetControlID="txtEnd">
            </cc1:CalendarExtender>
        </p>
        <asp:Button ID="Button1" runat="server" Text="Button" />
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>

Answer 2

像这样删除代码

<asp:CompareValidator ID="cmpDates" runat="server" ControlToValidate="StartDate"
                  SetFocusOnError="true" ControlToCompare="EndDate"
                  ErrorMessage="EndDate must be greater than StartDate"
                  Operator="LessThan"
                  ValidationGroup="vg" Type="Date"                           
                  CultureInvariantValues="true"></asp:CompareValidator>

Answer 3

默认情况下，CompareValidator不适用于dd/mm/yyyy格式，因此需要在ASP.Net Web Page的页指令中显式地将页的Culture属性更改为en-GB，或者可以将其添加到webconfig中。

在页面级别

<%@ Page Language="C#" 
    AutoEventWireup="true" 
    CodeFile="Default.aspx.cs" 
    Inherits="_Default" 
    Culture = "en-GB" %>

在Webconfig

<globalization requestEncoding="utf-8" 
  responseEncoding="utf-8"
  culture="en-GB" 
 uiCulture="en-GB" />