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Editorial Team
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Asked: 2026-05-27T14:28:22+00:00

Please look at this code: <script> var mygrid; function lock(){ for (var i=1; i<15;

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Please look at this code:

<script>
var mygrid;
function lock(){
    for (var i=1; i<15; i++)
    {
        var cur_row=i + "";
            mygrid.lockRow(cur_row,true);
            mygrid.setRowColor(i,"#E5E5E5");
    }
}
function doInitGrid(){
mygrid = new SomeClass;
}
</script>
</head>
<body onload="doInitGrid()" dir=rtl>
<div id="mygrid_container" style="width:905px;height:550px;"></div>
<script>lock();</script>
  <button onclick="addRow()">Add Row</button>  
  <button onclick="removeRow()">Remove Row</button>
  <button onclick="lock()">lock Row</button>
</body>

Why when I run lock function (Without the button), my var is undefined, and when I click on the button everything is ok?

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1 Answer

  1. Editorial Team

    This is a timing issue, not a scope issue.

    You call doInitGrid() only onload so it won’t assign a value to mygrid until after the document has finished loading.

    When you call lock() inline, you do so as the document loads.

    Presumably you have waited until the document has finished loading before clicking on the button.

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