In your group you should have something similar :

editoptions: {
                  value: FunctionToGetTheInitialListofItems(),
                  dataEvents: [
                      { type: 'change',
                        fn: function (e) {
                          var selected= $(e.target).val(); //Get the type of cooperation id
                          var newvalues = FunctionToGetTheSecondDropDownValues(mtype).split(";"); // split the lines
                          var DropDowncontructor= "";

                          if (newvalues!= "") {
                            for (var i = 0; i < tcoops.newvalues; i++) {
                              var newvalues= newvalues[i].split(":");
                              DropDowncontructor+= '<option value="' + newvalues[0] + '">' + newvalues[1] + '</option>'  // the is the value and the ID

                            }
                          }

                          $("#unit").html(DropDowncontructor);
                        }
                      }]
                },

This is not tested ... not 100% correct, but is very near that (maybe 95%).

Best regards,

Given a grid with several columns, let's say first column contains groups, and second one a group's subunits (one-to-many relationship).

Now, in edit mode, I want second column to turn into a dropdown, and I want it to be populated depending on first column (to change a group's current unit, one can choose from a set of units which 'feed' the drop-down, but this is not the whole set of units in database, but a subset depending on the group's id).

I have something like:

{

name: "group",

index: "group",

width: 100,

editable: false

},

{

name: "unit",

index: "unit",

width: 150,

editable: true,

edittype: "select",

editoptions: {

value: unitsForCurrentGroup

}

},

unitsForCurrentGroup is a javascript variable and grid is an inline grid.

I tried to use an onedit - oneditfunc - handler, which is indeed passed the edited row's id (which is equal to group id in my case) and that method returns a group's units and stores them in unitsForCurrentGroup. 

Still no luck, in edit mode my drop down is empty (I suppose the value for editoptions must be known at grid loading time, not just when editing a row?)

Thanks,

Karina