New Post: Awesome grid not showing data on initial loading

Awesome grid not showing data on initial loading after clicking refresh button on the grid the data is showing. I am working on HTML 5
My code is Below

View

@(Html.Awe().Grid("Installation_grid")

.Url(Url.Action("GetInitialisationParameters", "Home"))

.Columns(new[]
{

        new Column { Name = "Variable", Header = "Variable",PercentWidth=20 },
        new Column { Name = "Description", Header = "Description",PercentWidth=20},

        new Column { Name = "Value", Header = "Value",PercentWidth=60}

})

    .ShowGroupBar(false)
    .Groupable(false)
    .PageSize(10)

    )

Controller

public ActionResult GetInitialisationParameters(GridParams gridParams)

    {


        HttpClient client = new HttpClient();

        HttpResponseMessage InitialisationParametersResponse = client.GetAsync(ConfigurationManager.AppSettings["WebApiUrl"] + "Initialisation").Result;


        ReqInstallationList = JsonConvert.DeserializeObject<List<Installation>>(InitialisationParametersResponse.Content.ReadAsStringAsync().Result);

        return Json(new GridModelBuilder<Installation>(ReqInstallationList.AsQueryable(), gridParams).Build());










    }