jQuery to hide all row classes except 'row2' only when the parent class is viewContainerTop

I've been to jquery select class inside parent div and Testing objects for ancestor/descendent relationship in JavaScript or Jquery and jQuery wild card character but can't seem to fit the pieces together. Thanks.

<div id="viewContainerTop" class="top">
    <div class="row1"></div>
    <div class="row2"></div>
    <div class="row2"></div>
    开发者_如何学C<div class="row2"></div>
    <div class="row3 first"></div>
    <div class="row3"></div>
    <div class="row3"></div>
</div>

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Machting the code you posted (parent has id viewContainerTop)

$("#viewContainerTop > div:not(.row2)").hide();

Matching what you wrote (parent has class not id viewContainerTop)

$(".viewContainerTop > div:not(.row2)").hide();

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$("#viewContainerTop > div:not(.row2)").hide();