The value '5/15/2012' of the MaximumValue property of 'RangeValidator1' cannot be converted to type 'Date'.

 

Server Error in '/InsusTutorials' Application.

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The value '5/15/2012' of the MaximumValue property of 'RangeValidator1' cannot be converted to type 'Date'.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: The value '5/15/2012' of the MaximumValue property of 'RangeValidator1' cannot be converted to type 'Date'.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[HttpException (0x80004005): The value '5/15/2012' of the MaximumValue property of 'RangeValidator1' cannot be converted to type 'Date'.]
   System.Web.UI.WebControls.RangeValidator.ValidateValues() +1324866
   System.Web.UI.WebControls.RangeValidator.ControlPropertiesValid() +12
   System.Web.UI.WebControls.BaseValidator.OnPreRender(EventArgs e) +36
   System.Web.UI.Control.PreRenderRecursiveInternal() +103
   System.Web.UI.Control.PreRenderRecursiveInternal() +175
   System.Web.UI.Control.PreRenderRecursiveInternal() +175
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2496

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Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1

一位网友程序出现如上Error，他把程序发送过来，但是没有数据库。Insus.NET只能拷贝程序关键部分做测试了。现在Insus.NET把它帖出来，方便遇上同样问题的人也可以做测试。

aspx:

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br />
         <asp:RangeValidator ID="RangeValidator1" runat="server" ErrorMessage="请输入有效日期"
            Type="Date" ControlToValidate="TextBox1" CultureInvariantValues="True" SetFocusOnError="True" Width="131px"></asp:RangeValidator>

.aspx.cs:

protected void Page_Load(object sender, EventArgs e)
    {     
        this.RangeValidator1.MinimumValue = DateTime.Today.ToShortDateString();
        this.RangeValidator1.MaximumValue = DateTime.Today.AddDays(365).ToShortDateString();
    }

当你run这些代码时，你会发现错误的出现。

问题出在BaseCompareValidator.CultureInvariantValues 属性上。更多相关资讯，可以参考Microsoft msdn网站：http://msdn.microsoft.com/zh-cn/library/system.web.ui.webcontrols.basecomparevalidator.cultureinvariantvalues.aspx

解决问题，把需要把CultureInvariantValues="True"设为False或者是删除。