jqGrid dynamic select option

I'm creating a jqgrid with drop down columns and I'm using cell editing. I need the options of the drop down columns to change dynamically and I've tried implementing this by setting the column to be:

{ name: "AccountLookup", index: "AccountLookup", width: 90, editable: true, resizable: true, edittype: "select", formatter: "select" },

and then in the beforeCellEdit event I have:

beforeEditCell: function(id, name, val, iRow, iCol) {        if(name=='AccountLookup') {                         var listdata = GetLookupValues(id, name);            if (listdata == null) listdata = "1:1";                                          jQuery("#grid").setColProp(name, { editoptions: { value: listdata.toString()} })                            }    },

GetLookupValues just returns a string in the format "1:One;2:Two" etc.That works fine however the options are populated one click behind - ie i click on AccountID in row 1, and the dropdown is empty, however when I then click on AccountID in row 3 the options I set in the row 1 click are shown in the row 3 click. And so on. So always one click behind.

Is there another way of achieving what I need? Bacially the dropdown options displayed are always changing and I need to load them as user enters the cell for editing.Perhaps I can somehow get at the select control in the beforeEditCell event and manually enter its values instead of using the setColProp call? If so could I get an example of doing that please?

Another thing - if the dropdown is empty and a user doesn't cancel the cell edit, the grid script throws an error. I'm using clientarray editing if that makes a difference.

Greatly appreciate any help.




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