maxlength on multiline textbox

H

hardcoded

I have a textbox with TextMode set to MultiLine. I also have the MaxLength
set to 255. This maxlength value seems to get ignored as the user can enter
unlimited characters. Does the multiline textbox not support maxlength?
How can I make the work?

TIA
 
W

William F. Robertson, Jr.

No the max length doesn't work as the html tag rendered is a textarea tag,
which has no MaxLength property.

You will need to use a Validator control to ensure the length doesn't exceed
the MaxLength. You could use a RegExValidator or derive your own from
CustomValidator.

HTH,

bill
 
H

hardcoded

Just as I suspected. Thanks!

William F. Robertson said:
No the max length doesn't work as the html tag rendered is a textarea tag,
which has no MaxLength property.

You will need to use a Validator control to ensure the length doesn't exceed
the MaxLength. You could use a RegExValidator or derive your own from
CustomValidator.

HTH,

bill
Click to expand...
 
I

i-Safire

try the this

<HTML>
<HEAD>
<SCRIPT>
function fun_pTextarea_MaxLen(prm_oTextarea_Obj)
{ var var_sKey_Code, var_aKey_Special, var_bResult,
var_oTextarea_TxtRng;

var_oTextarea_TxtRng = prm_oTextarea_Obj.createTextRange();
var_aKey_Special = [8,17,18,27,33,34,35,36,37,38,39,40,45,46,114];
var_bResult = true;
var_sKey_Code = event.keyCode;
if (var_sKey_Code == 86)
{ if (event.ctrlKey) var_bResult =
fun_mTextarea_Paste(prm_oTextarea_Obj); }

if(prm_oTextarea_Obj.value.length >= prm_oTextarea_Obj.maxLen)
{ var_bResult = false;

if (var_oTextarea_TxtRng.queryCommandState('OverWrite') &&
(prm_oTextarea_Obj.value.length == prm_oTextarea_Obj.maxLen))
{ var_bResult = true; }
else
{
for (i=0; i<var_aKey_Special.length; i++)
{ if (var_sKey_Code == var_aKey_Special) {var_bResult = true;
break;} }
}
}

return var_bResult;
}

function fun_mTextarea_Paste(prm_oTextarea_Obj)
{ var var_sClipboard_Text;
var_sClipboard_Text = window.clipboardData.getData("Text");
prm_oTextarea_Obj.TxtRng =
document.selection.createRange().duplicate();

if (prm_oTextarea_Obj.TxtRng && prm_oTextarea_Obj.createTextRange)
{ prm_oTextarea_Obj.TxtRng.text =
prm_oTextarea_Obj.TxtRng.text.charAt(prm_oTextarea_Obj.TxtRng.text.length
- 1) == ' ' ? var_sClipboard_Text + ' ' : var_sClipboard_Text;
}
else
{ prm_oTextarea_Obj.TxtRng.text = var_sClipboard_Text;}

prm_oTextarea_Obj.value = prm_oTextarea_Obj.value.substring(0,
prm_oTextarea_Obj.maxLen);
return false;
}

</SCRIPT>
</HEAD>
<BODY>
<textarea maxLen=10 onkeydown="return
fun_pTextarea_MaxLen(this);"></textarea>
</BODY>
</HTML>

(phoenix398017)
 

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