使用javascript进行日期文本框验证 [英] date textbox validation using javascript

问题描述

hiii ,,,

我正在制作一个Web表单，其中当我从Ajax日历中选择to_date时，如果Todate是From_date，则是To_date和From_date.so的文本框.因此它会发出警报消息，否则将重点放在下一个日历上.

那么，我将如何实现呢?
请帮助我.......

谢谢和问候...
Mitesh

hiii,,,

i am making a web form in which there is textbox of To_date and From_date.so when i select to_date from the ajax calendar, if the selected date is Past date then now date. so it give alert message otherwise focus go onto next calendar.

so, how this will i achieve ?
Please Help Me.......

Thanks and Regards...
Mitesh

推荐答案

尝试一下:

Try this:

protected string CheckDateErrors(string dateGiven)
       {
           // let's make sure that the date entered by user
           // does not exceed the present date or goes back
           // over a year.
           // we need to try parse!
           DateTime userDate = DateTime.Parse(dateGiven);
           //DateTime userDate;

           int userYear = userDate.Year;
           int userMonth = userDate.Month;
           int userDay = userDate.Day;

           // not valid! user entered future date, can't allow this to happen
           if (userDate.CompareTo(DateTime.Now) > 0)
           {
               //this.tbBeginDate.ForeColor = Color.Red;
               //this.tbBeginDate.BorderColor = Color.Red;
               return "* Cannot Enter Future Dates;";
           }
           // date cannot be more than one year old.
           else if (userDate.CompareTo(DateTime.Now) <= 0)
           {
               int difference = DateTime.Today.Year - userYear;


               // going too far back; now allowed.
               if (userYear < (DateTime.Today.Year - 1))
               {
                   return "* Cannot Enter Past One Year: Compared Years;";
               }
               else if ((difference == 1) &&
                   (userMonth < DateTime.Today.Month))
               {
                   return "* Cannot Enter Past One Year: Compared Months;";
               }
               else if ((difference == 1) &&
                    (userMonth >= DateTime.Today.Month) &&
                    (userDay < DateTime.Today.Day))
               {
                   return "* Cannot Enter Past One Year: Compared Days";
               }
               return "none";
           }
           return "none";
       }

在此处找到它 [

Found it here[^]

Hello Mitesh，

请在下面找到可能对您有帮助的链接:
http://pankajlalwani.wordpress .com/2009/12/23/asp-net-ajax-calendar-extender-and-past-date-validation-javascript/ [ http://chakkaradeep.wordpress.com/2008/08/01/aspnet -ajax-calendarextender-and-validation/ [ http://codingform.blogspot.in/2009/07/ajax-calendarextender-date- validation.html [ ^ ]

Hello Mitesh,

Please find below links which might help you:
http://pankajlalwani.wordpress.com/2009/12/23/asp-net-ajax-calendar-extender-and-past-date-validation-javascript/[^]
http://chakkaradeep.wordpress.com/2008/08/01/aspnet-ajax-calendarextender-and-validation/[^]
http://codingform.blogspot.in/2009/07/ajax-calendarextender-date-validation.html[^]

可能会帮助您.

http://www.dreamincode.net/forums/topic/99238-date-validation/ [ ^ ]

May be this will help you.

http://www.dreamincode.net/forums/topic/99238-date-validation/[^]

这篇关于使用javascript进行日期文本框验证的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！