CODEWITHSUNDEEP
javascript
selva
selva

Reputation: 809

Check whether a control is available in td

Inside table td i have control(s). there must be one control inside td but can be multiple. I can get first control the following way.

ctrlTable.rows[i].cells[1].getElementsByTagName("*")[0].value;

So how to check whether the "td"/cell[1] has more control

Thanks,

Upvotes: 0

Views: 770

Answers (2)

Alex K.
Alex K.

Reputation: 175768

One way;

function countEls(cell) {
    var lookFor = ["INPUT", "SELECT", "BUTTON"];
    var count = 0;
    for (var i = 0; i < lookFor.length; i++) {
        count += cell.getElementsByTagName(lookFor[i]).length;
    }
    return count;
}

alert(countEls(ctrlTable.rows[i].cells[1]))​;

Upvotes: 1

Matt Bridges
Matt Bridges

Reputation: 49385

To check the number of children on any DOM element, you can use the childNodes[] property, e.g.:

ctrlTable.rows[i].cells[1].childNodes.length > 0

Upvotes: 1

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