How to validate time using compare validator..?

Question

0.00/5 (No votes)

See more:

I have two textboxes with mask textbox attached for inputing time..

ASP.NET

<asp:TextBox ID="txtStartTime" runat="server" MaxLength="8" CssClass="WellInfoLables"
     Width="150"></asp:TextBox>
<asp:MaskedEditExtender ID="MaskedEditExtender_txtStartTime" runat="server"  ClearMaskOnLostFocus="False" Mask="99:99" TargetControlID="txtStartTime" MaskType="Time" UserTimeFormat="TwentyFourHour"
MessageValidatorTip="true" />

///////And ////

<asp:TextBox ID="txtEndTime" runat="server" MaxLength="8" CssClass="WellInfoLables"
    Width="150"></asp:TextBox>
<asp:MaskedEditExtender ID="MaskedEditExtender_txtEndTime" runat="server" ClearMaskOnLostFocus="False"
   Mask="99:99" TargetControlID="txtEndTime" MaskType="Time" UserTimeFormat="TwentyFourHour"
   MessageValidatorTip="true" />

now additionaly i add one comparevalidation control to my page like this...

ASP.NET

<asp:CompareValidator ID="ComValEndTime" runat="server" 
    ControlToValidate="txtEndTime" ControlToCompare="txtStartTime"
    ErrorMessage="End time is Greater then Start Time"
    Text="*" Display="Dynamic" Operator="GreaterThan" Type="Date" ValidationGroup="vgDA"></asp:CompareValidator>

but its not working..

its give error every time, event i enter the end time larger then start time, i use 24 hrs time formate..

please provide me the solution, not for this only if any better idea for validation this two time then it will also apprisiated.

Posted 16-Feb-12 20:02pm

Tejas Vaishnav

Add a Solution

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Sanjeev Alamuri · Answer 1 · 2012-02-16T20:08:00

Solution 1

go for client side validation i.e. use javascript to validate the time.split the time by 'hours','minutes' and 'seconds' then compare each. if hours are equal compare minutes,like same
wise seconds also. this will work only single day time i.e. 0.00 to 23.59 only.

Posted 16-Feb-12 20:08pm

Sanjeev Alamuri

Sudip Saha · Answer 2 · 2012-02-16T20:16:00

Use this funtion in customvalidator
function timeToSec(str) 
{   
var h = Number(str.match(/^\d+/));
   if(str.indexOf("PM") != -1)    
 h += 12;   
var m = Number(str.match(/^\d+:(\d+):/)[1]); 
  var s = Number(str.match(/:(\d+)\s+[AP]M/)[1]);  
 return (h * 60 + m) * 60 + s; 
} 
if(timeToSec(start) > timeToSec(end)) 
  alert("Oops");

Otniel Pena · Answer 3 · 2014-02-27T13:32:00

Solution 3

If the hour is 12.00 pm, h will get 24. I added the following to ensure 12.00 pm (noon) remains 12h

JavaScript

if ((time.indexOf("PM") != -1) && (h != 12))
                h += 12;

Posted 27-Feb-14 13:32pm

Otniel Pena