Set a caption for a crt.DataGrid column dynamically

Hi,

Is it possible to set a title for a column in a DataGrid dynamically via client code?

I tried the following steps:

  1. Add an attribute to viewModelConfigDiff called "InspectorsSundayCaption".

            viewModelConfigDiff: /**SCHEMA_VIEW_MODEL_CONFIG_DIFF*/[
            {
                "operation": "merge",
                "path": [
                    "attributes"
                ],
                "values": {
                   "InspectorsSundayCaption":{
                   },

            ......}

  2. Bind the attribute to the caption property of column

                       {
                            "id": "aaa335c2-8291-0f65-e930-e39ca7e333a7",
                            "code": "DataGrid_244wb6vDS_UsrwpPoliceCarsSunday",
                            "path": "UsrwpPoliceCarsSunday",
                            "caption":"$InspectorsSundayCaption2",
                            "dataValueType": 4
                        },

  3. Set the attribute in the HandleViewModelInitRequest handler with the specific value.

    {
                request: "crt.HandleViewModelInitRequest",
                  handler: async (request, next) => {

                           .....

                           request.$context.InspectorsSundayCaption = "Sunday inspectors " + sundayDateStr;

                           await next?.handle(request);

}

 

This way work to me in normal column caption, But it doesn't work in a DataGrid column

Is there any limitation/step I'm missing?

Thanks in advance for your assistance!
Rachel