Ok, I'll try this and get back to you. THANX!
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Question
Setting TextArea Character Limit
Ok, Is there a way to set a character limit
on a textarea form element? Is there a way
to check if the entered text exceeds a character
limit?
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Answers
hi,
How abt running this script on a html page & see how it goes !!!
<HEAD>
<SCRIPT LANGUAGE="JavaScript">func
if (field.value.length > maxlimit) // if too long...trim it!
field.value = field.value.substring(0, maxlimit);
// otherwise, update 'characters left' counter
else
countfield.value = maxlimit - field.value.length;
}
</SCRIPT>
</HEAD>
<!--- ==========================
<BODY>
<CENTER>
<FORM NAME="MYFORM" ACTION="anandkp.cfm"><FONT
<TEXTAREA NAME="message" WRAP="PHYSICAL" COLS="28" ROWS="4" onKeyDown="textCounter(thi
<INPUT READONLY TYPE="TEXT" NAME="remLen" SIZE="3" MAXLENGTH="3" VALUE="125">characters left</FONT>
</FORM></CENTER>
</BODY>
K'Rgds
Anand
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by: danrosenthalPosted on 2003-03-28 at 13:51:04ID: 8228052
You can verify the text entered, but you cannot pre-set a limit. Here is how you can verify client-side:
<SCRIPT language="JavaScript">
var fieldmaxlength = 10;
function chkchars(){
if(document.myform.testfie
alert('You have exceded the maxmimum of '+fieldmaxlength+' characters');
document.myform.testfield.
}
}
function chkform(){
if(document.myform.testfie
chkchars();
return false
}
}
</script>
<FORM name="myform" onsubmit="return chkform();">
<TEXTAREA name="testfield" onkeyup="chkchars();"></te
<INPUT type="Submit">
</form>
It is also a good idea to verify on you form processing page as well to guard against hackers and those who have javascript disabled. To do this you just need a simple code like this:
<CFIF len(testfield) gt 10>
-- display error, prevent submit, etc. --
</CFIF>