date validation using javascript

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ASP.NET

I've a textbox for date and in the textbox if I enter string I want it to display an alert msg.

Posted 14-Dec-11 21:25pm

priya from Madras

Updated 14-Dec-11 22:48pm

Dalek Dave

v2

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Comments

sriman.ch 15-Dec-11 5:23am

I will give you javascript function shortly....

8 solutions

Solution 1

function date(){

var validformat=/^\d{2}\/\d{2}\/\d{4}$/ //Basic check for format validity
var returnval=false
if (!validformat.test(input.value))
alert("Invalid Date Format. Please correct and submit again.");
}

actually this one is giving alert, but my date format is mon-day-year

so if i give correct date lik 12-11-2003,it shows error msg, because this one (/^\d{2}\/\d{2}\/\d{4}$/) is checking lik this 12/11/2003.how can i get lik mon-day-year .can i change the - instead of /

Posted 14-Dec-11 21:43pm

priya from Madras

Updated 15-Dec-11 2:03am

v2

Comments

Dalek Dave 15-Dec-11 4:48am

Good answer

Solution 2

Hi priya,
Date Validation using JavaScript[^]

Posted 14-Dec-11 21:43pm

srinivas vadepally

Solution 4

Hi
You can regular expression validator

XML

<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ErrorMessage="Please enter a valid date..."
                                    Text="*" ForeColor="Red" ControlToValidate="txtHDate" ValidationGroup="modal"
                                    ValidationExpression="^(((0[1-9]|[12]\d|3[01])\/(0[13578]|1[02])\/((19|[2-9]\d)\d{2}))|((0[1-9]|[12]\d|30)\/(0[13456789]|1[012])\/((19|[2-9]\d)\d{2}))|((0[1-9]|1\d|2[0-8])\/02\/((19|[2-9]\d)\d{2}))|(29\/02\/((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))$"></asp:RegularExpressionValidator>

Above is for date fromat in dd-mm-yyyy

Hope this helps

Posted 14-Dec-11 22:10pm

sriman.ch

Solution 8

Hi
Have a look on the following javascript function

C#

function isDate(dateStr)
{
var datePat = /^(\d{1,2})(\/)(\d{1,2})(\/)((\d{1,2})|(\d{4}))$/;
var matchArray = dateStr.match(datePat);
if (matchArray == null)
{
alert("Please enter a valid date...");
return false;
}
month = matchArray[3];
day = matchArray[1];
year = matchArray[5];
if (month < 1 || month > 12)
{
alert("Month must be between 1 and 12.");
return false;
}
if (day < 1 || day > 31)
{
alert("Day must be between 1 and 31.");
return false;
}
if ((month==4 || month==6 || month==9 || month==11) && day==31)
{
alert("Month "+month+" doesn`t have 31 days!");
return false;
}
if (month == 2)
          {
var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
if (day > 29 || (day==29 && !isleap))
{
alert("February " + year + " doesn`t have " + day + " days!");
return false;
}
}


return true;
}

Posted 15-Dec-11 6:26am

sriman.ch

Solution 5

Finally i used lik this ,its working fine Thanks all

var validformat = /^(?:(0[1-9]|1[012])[\- \/.](0[1-9]|[12][0-9]|3[01])[\- \/.](19|20)[0-9]{2})$/;  //Basic check for format validity

         if (!validformat.test(Textbox1)) {
             alert("StartDate and EndDate has to be enter in correct format.");
             return false;
         }

Posted 15-Dec-11 0:26am

priya from Madras

Updated 15-Dec-11 2:04am

v2

Solution 6

check following link
Date Validation in JavaScript[^]

Posted 15-Dec-11 0:32am

koolprasad2003

Solution 7

XML

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>
Registration Form
</title>
<script type="text/javascript">
function check()
{
var ck_date = /^(0[1-9]|1[012])\-(0[1-9]|[12][0-9]|3[01]\-[0-9]{4})/;
d=document.form;
if (document.form.date_s.value.search(ck_date)==-1)
{
alert("Please only valid date in (mm-dd-yyyy)");d.date_s.value='';d.date_s.focus();return false
}
else
{
alert("Date validated OK.");d.date_s.value='';d.date_s.focus();return false}
}
</script>
</head>
<body>
<form style='margin-left:340px' name='form' action=" " method="POST">
<INPUT maxLength="12" type="text" name="date_s" size="12" onblur="return check()">
<INPUT TYPE="SUBMIT" value="Submit Date">
<INPUT TYPE="RESET" value="reset">
</form>
    </body>
</html>

I have updated check this I just call the Javascript function during onblur event of the textbox so it will validate without clicking the button..:-)

Posted 15-Dec-11 2:02am

Balakrishnan Dhinakaran

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Balakrishnan Dhinakaran · Accepted Answer · 2011-12-14T21:58:00

Try this code

XML

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>
Registration Form
</title>
<script type="text/javascript">
function check()
{
var ck_date = /^(0[1-9]|1[012])\-(0[1-9]|[12][0-9]|3[01]\-[0-9]{4})/;
d=document.form;
if (document.form.date_s.value.search(ck_date)==-1)
{
alert("Please only valid date in (mm-dd-yyyy)");d.date_s.value='';d.date_s.focus();return false
}
else
{
alert("Date validated OK.");d.date_s.value='';d.date_s.focus();return false}
}
</script>
</head>
<body>
<form style='margin-left:340px' name='form' action=" " method="POST" onsubmit="return check()">
<INPUT maxLength="12" type="text" name="date_s" size="12">
<INPUT TYPE="SUBMIT" value="Submit Date">
<INPUT TYPE="RESET" value="reset">
</form>
    </body>
</html>

date validation using javascript

8 solutions

Solution 1

Solution 2

Solution 3

Solution 4

Solution 8

Solution 5

Solution 6

Solution 7

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