dynamically creating of the table used for jqGrid work fine. See the demo for example.

You just have a bug in your code. Typical errors are: 1) use create <div> element instead of <table> element; 2) you initialize jqGrid (call $("#MyGridData").jqGrid({/*parameters of jqGrid*/})) before the corresponding <table> element are placed on the page.

Best regerds
Oleg 

I have a div where I dynamically create the table for jqGrid.  If we use the example from the demo here http://www.trirand.com/blog/jq.....qgrid.html

This works just fine:
<div id="MyGridData"><table id="list4"></table></div>

This does not

<div id="MyGridData"></div>

then in js:

$("#MyGridData").html('<table id="list4"></table>')

Any ideas why?

Everything else is the same as the demo.  I put the relevant MyData and loading code in document.ready for when the page loads.