Masking and validation for yyyy-yy format in asp.net?

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I want the user to enter session in textbox in the format yyyy-yy. I want masking for that. How to force and validate this?

Posted 23-Nov-15 19:41pm

xpertzgurtej

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Suvendu Shekhar Giri 24-Nov-15 1:57am

Anything you have tried so far?

xpertzgurtej 24-Nov-15 2:01am

tried maskededitextender but no luck

Snesh Prajapati 24-Nov-15 2:18am

I hope it would be YYYY-MM ? .....if so please correct typo in question. Thanks.

xpertzgurtej 24-Nov-15 2:28am

It is yyyy-yy. Bacause i want the user to enter academic session in this format e.g. 2014-15

2 solutions

Solution 1

If you did not find a masking control for your requirement, then just handle the keypress event for the textbox and check the length of the content. If content length is 4, then insert a "-", then allow two more characters.

Posted 23-Nov-15 22:12pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

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Raje_ · Accepted Answer · 2015-11-23T22:40:00

[Edit] : keypress event will be more appropriate.
Try keypress event of jquery :

First allow only 7 characters in your text box by using maxlength property

HTML

<input type="text" id="txtInput"  maxlength="7" />

then write keypress
event in jquery :

JavaScript

$(document).ready(function () {
           $('#txtInput').keypress(function (e) { //write a keypressevent
               var inputVal = $(this).val();
               if (e.keyCode != 8) { //check if backspace is clicked or not
                   if (inputVal.length == 4) { //check the lenght of text input
                       inputVal = inputVal + '-'; //if length is 4 append '-'
                       $(this).val(inputVal);//then set the text box value by new appended text.
                   }
               }
           });
       });

Good luck.