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limit no of char per line

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limit no of char per line

 
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  #1
Dec 1st, 2008
hi
i have a text area where i want to limit the number of charactersin each line.
for example if the user enters more than 50 caharacters it should automatically move the cursor to the next line
thanks
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Re: limit no of char per line

 
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  #2
Dec 1st, 2008
I do not know if there is a simple way. But at this moment here what you can do.

Write a event handler for onkeyup for your text area and count for every keypress if count exceeds 50 then append '\n'(new line character) by yourself.

thats it.
Your js keyhandler will look somthing like this:-
javascript Syntax (Toggle Plain Text) 
  1. var count = 0;
  2. function keypress (e) {
  3.      if(count>=50) {
  4.            document.getElementById('textarea_id').value = document.getElementById('textarea_id').value + '\n';
  5.            count = 0;
  6.      } else {
  7.            count++;
  8.      }
  9. }
When you think you have done a lot, then be ready for YOUR downfall.
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Re: limit no of char per line

 
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  #3
Dec 2nd, 2008
this is not working
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Re: limit no of char per line

 
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  #4
Dec 2nd, 2008
What have you done till now?
When you think you have done a lot, then be ready for YOUR downfall.
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Re: limit no of char per line

 
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  #5
Dec 2nd, 2008
Of course its working man. I tried it with document.getElementById('id of textarea')

What you want? That a working code is delivered to you so that you can sit back and rest.
When you think you have done a lot, then be ready for YOUR downfall.
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Re: limit no of char per line

 
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  #6
Dec 2nd, 2008
tried something like this
JavaScript / DHTML / AJAX Syntax (Toggle Plain Text) 
  1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  2. <html xmlns="http://www.w3.org/1999/xhtml">
  3. <head>
  4. <script language="javascript" type="text/javascript">
  5. <!--
  6. var count = 0;
  7. function ress(){
  8.  
  9. if(count>=5) {
  10. document.getElementById('textarea_id').value = document.getElementById('textarea_id').value + '\n';
  11. count = 0;
  12. } else {
  13. count++;
  14. }
  15. }
  16. //-->
  17. </script>
  18. </head>
  19.  
  20. <body>
  21. <form>
  22. <textarea name="textarea_id" onkeypress="ress();"></textarea>
  23. </form>
  24. </body>
  25. </html>
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Re: limit no of char per line

 
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  #7
Dec 2nd, 2008
in the function you have passed a variable called 'e'...wat is tat for
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Re: limit no of char per line

 
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  #8
Dec 2nd, 2008
Where you had set the id for textarea?

ignore e in the function
Last edited by Luckychap; Dec 2nd, 2008 at 6:11 am.
When you think you have done a lot, then be ready for YOUR downfall.
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Re: limit no of char per line

 
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  #9
Dec 3rd, 2008
i want it to work when the tries to paste also
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