regularexpressionvalidator 时间正则验证？

Question

时间可以为空，或者是>=今天的时间

Answer 1

后台验证是否大于等于今天吧...if(TextBox1.Text.Trim() != "")
{
   if((Convert.ToDateTime(TextBox1.Text.Trim()) - DateTime.Now).Days >= 0)
   //...
}

Answer 2

如果Text非时间格式.不就死翘翘了...
还是同意#3的.用js来搞定...

Answer 3

嗯，可以用DateTime.TryParse 

Answer 4

代码如下（.aspx）：
<asp:TextBox ID="txtP24DateScheduledInterview" runat="server" onkeypress="return noenter();"></asp:TextBox>
            <asp:Image ID="imgP24DateScheduledInterview" runat="server" ImageUrl="Images/calender.jpg" />
            <cc1:CalendarExtender ID="ceP24DateScheduledInterview" runat="server" TargetControlID="txtP24DateScheduledInterview" 
            Format="yyyy-MM-dd" PopupButtonID="imgP24DateScheduledInterview" FirstDayOfWeek="Default" >
            </cc1:CalendarExtender>   
            <asp:RegularExpressionValidator ID="revP24DateScheduledInterview" runat="server" 
            ErrorMessage="Sorry, wrong type <b>yyyy-mm-dd</b>" 
            ValidationExpression="^\d{4}-([0][1-9]|[1][012])-([0][1-9]|[12][0-9]|[3][01])$"
            ControlToValidate="txtP24DateScheduledInterview" 
            Display="None" >
            </asp:RegularExpressionValidator>  
            <cc1:ValidatorCalloutExtender ID="vceP24DateScheduledInterview" runat="server" TargetControlID="revP24DateScheduledInterview" HighlightCssClass="css" Width="320px">
            </cc1:ValidatorCalloutExtender>
这个正则只验证时间。

Answer 5

为空可以验证
大于今天
TimeSpan ts=DateTime.Parse("")-DateTime.Now;
temp=document.getElementById("TextBox1").value.split("-");
   dt1 = new Date(parseInt(temp[0],10), parseInt(temp[1],10),parseInt(temp[2],10),0,0,0); 
   dt2 = new Date();                                                                     //今天
   dt3 = new Date(dt2.getFullYear(),dt2.getMonth()+1,dt2.getDate()+1,0,0,0);                  
   iii = parseInt(Date.parse(dt3.toGMTString()))-parseInt(Date.parse(dt1.toGMTString()));
      
    if(iii>0)
    {
        alert("已经过期!");        
      }

Answer 6

用CompareValidator验证控件可以!
设置一个TextBox2,隐藏,赋今天的值,TextBox1和TextBox2比较即可!代码如下:
    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    <asp:CompareValidator ID="CompareValidator1" runat="server" 
        ControlToCompare="TextBox2" ControlToValidate="TextBox1" 
        ErrorMessage="必须大于或等于今天的日期" Operator="GreaterThanEqual" Type="Date">*</asp:CompareValidator>
    <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
    <asp:Button ID="Button1" runat="server" Text="Button" />
    <asp:TextBox ID="TextBox2" runat="server"  style="display:none;"></asp:TextBox>
后台对TextBox2赋今天的值:
    protected void Page_Load(object sender, EventArgs e)
    {
        TextBox2.Text = DateTime.Today.ToShortDateString();
    }