Setting Maxmimu Lenght For Obout Edit Control?

Sep 18, 2010

In my web application i am using obout Edit control. I want to restrict the user to type only 400 characters how can i restrict the user.i write javascript like this.

function textCounter(field,cntfield,maxlimit)
{
if (field.value.length > maxlimit)
{
alert("Cannot type more than 450 characters");
field.value = field.value.substring(0, maxlimit);
}
else
{
cntfield.value = maxlimit - field.value.length;
}
}
// this is text box

but it is giving error like no onkeydown for editor.

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