CODEWITHSUNDEEP
javascriptasp.net-mvc-3
Christopher B. L
Christopher B. L

Reputation: 245

Microsoft JScript runtime error: Unable to get value of the property 'value': object is null or undefined

I'm working on an asp.net web page, there is a texbox, i want to make sure the text entered is less than 3 characters, the code i wrote is

<input type="text" name="searchcatid" size="15" onblur="test_length(Index.searchchatid)" />

<script>

function test_length(testcontrol) {


    var teststring = testcontrol.value;

    if (teststring.length >= 3) {
        alert("ID must be 3 or fewer characters!");
        testcontrol.focus();
    }
    else {
    }


} 


</script>

and I get the error "Microsoft JScript runtime error: Unable to get value of the property 'value': object is null or undefined", whenever i enter something, I have no idea what goes wrong, since im really new in asp.net, not even sure my code would actually work, hope someone could help me, thanks a lot

Upvotes: 1

Views: 7064

Answers (2)

ThiefMaster
ThiefMaster

Reputation: 318488

Pass the input element in a proper way:

<input type="text" name="searchcatid" size="15" onblur="test_length(this);" />

It would be even better if you registered your eventhandlers via JavaScript instead of using inline events.

Upvotes: 1

Priyank Patel
Priyank Patel

Reputation: 6996

Is it the problem , please check

name="searchcatid" Index.searchchatid The spelling searchcatid doesn't match

Upvotes: 0

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