How to get a jqGrid cell value when editing?

 You can get a jqGrid cell value when editing by using the beforeSaveCell event. This event is triggered just before the cell is saved, and you can use it to retrieve the current value of the cell before it is edited.

Here's an example of how to use the beforeSaveCell event to get the value of a cell when editing:

javascript
$("#grid").jqGrid({
    // other jqGrid options
    beforeSaveCell: function(rowid, cellname, value, iRow, iCol) {
        var cellValue = $(this).jqGrid('getCell', rowid, cellname);
        console.log('Cell value:', cellValue);
    }
});

In this example, we're using the beforeSaveCell event to retrieve the value of the cell being edited. The rowid and cellname parameters identify the cell being edited, and we're using the getCell method to retrieve its current value. We're then logging the value to the console, but you can use it in any way you like.

Note that the beforeSaveCell event is only triggered if the cell is actually changed. If the user doesn't make any changes to the cell, this event won't be triggered. If you need to get the value of the cell even if it isn't changed, you can use the onCellSelect event instead.