How to get a cell value in JQGrid?

If I use the following syntax –

var ret = jQuery("#MyGrid").jqGrid('getRowData', id);
ret = ret.ProductId;

it returns the following HTML.

'input class="editable" name=" ProductId " id="0_ ProductId " style="width: 98%;" type="text"'

I actually need the value of the cell.

Thanks. Dev

jquery jqgrid get cell
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