button onclick to textbox numeric value validation in Jquery RSS

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  DivakarGanta

  Member

  39 Points

  140 Posts

  button onclick to textbox numeric value validation in Jquery

  Apr 28, 2012 11:37 AM|LINK

  Hi,

  I have requirement for button click to popup alert if textbox is not a numeric value.

  Thanks,

  -Divakar.
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  Ashley.Jones

  Member

  210 Points

  51 Posts

  Re: button onclick to textbox numeric value validation in Jquery

  Apr 28, 2012 11:45 AM|LINK

  Hello,

  Please check the thread below.It will help you.

  http://stackoverflow.com/questions/793445/getting-a-integer-value-from-a-textbox-how-to-check-if-its-nan-or-null-etc

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  Pritesh Meht...

  Member

  246 Points

  153 Posts

  Re: button onclick to textbox numeric value validation in Jquery

  Apr 29, 2012 03:33 AM|LINK

  Use following :

  $(document).ready(function() {
      $("#txtboxToFilter").keydown(function(event) {
          // Allow: backspace, delete, tab and escape
          if ( event.keyCode == 46 || event.keyCode == 8 || event.keyCode == 9 || event.keyCode == 27 ||
               // Allow: Ctrl+A
              (event.keyCode == 65 && event.ctrlKey === true) ||
               // Allow: home, end, left, right
              (event.keyCode >= 35 && event.keyCode <= 39)) {
                   // let it happen, don't do anything
                   return;
          }
          else {
              // Ensure that it is a number and stop the keypress
              if (event.shiftKey || (event.keyCode < 48 || event.keyCode > 57) && (event.keyCode < 96 || event.keyCode > 105 )) {
                  event.preventDefault();
              }  
          }
      });
  });
  
  OR you can use

  if($('#Field').val() != "") {
      var value = $('#Field').val().replace(/^\s\s*/, '').replace(/\s\s*$/, '');
      var intRegex = /^\d+$/;
      if(!intRegex.test(value)) {
          errors += "Field must be numeric.<br/>";
          success = false;
      }
  } else {
      errors += "Field is blank.</br />";
      success = false;
  }
  

  If you like this post please mark as an answer so it will help others.
  • Marked as answer by Song-Tian - MSFT on May 04, 2012 09:24 AM
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  asteranup

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  Re: button onclick to textbox numeric value validation in Jquery

  Apr 30, 2012 06:26 AM|LINK

  Hi,

  You can use this logic-

  http://forums.asp.net/p/1650178/4289869.aspx#4289869

  http://delicious.com/anupdg/numberonly

  Thanks & Regards
  Anup Das Gupta
  Mark as Answer if you feel so. Visit My Blog
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  mudassarkhan

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  Re: button onclick to textbox numeric value validation in Jquery

  Apr 30, 2012 06:35 AM|LINK

  Refer

  http://www.aspforums.net/Threads/183574/How-To-Validate-the-Textbox-For-Inserting-Only-Numeric-Values/Answered

  MAK [MVP ASP.Net] ASP.Net Freelancer

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