Unable to obtain IQueryable instance from ''.'' or Selecting event

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MVC3

Hi,

I do not understand, why I am having error in this below code.

Can anyone please help for real quick. I am adding code and query window as well.

Html.EnableClientValidation();

   var grid = Html.DevExpress().GridView(settings =>
   {
       settings.Name = "gvIndices";
       settings.KeyFieldName = "Id";
       settings.SettingsBehavior.ColumnResizeMode = ColumnResizeMode.Control;
       settings.CallbackRouteValues = new { Controller = "Person", Action = "IndexPartial" };
       settings.SettingsEditing.AddNewRowRouteValues = new { Controller = "Person", Action = "InlineAddPartial" };
       settings.Width = Unit.Percentage(100);
       settings.SettingsEditing.Mode = GridViewEditingMode.EditFormAndDisplayRow;
       settings.SettingsBehavior.ConfirmDelete = true;
       settings.CommandColumn.Visible = true;
       settings.CommandColumn.DeleteButton.Visible = true;

       settings.CommandColumn.SetHeaderTemplateContent(c =>
       {
           Html.DevExpress().HyperLink(hyperLinkSettings =>
           {
               hyperLinkSettings.Name = "link_" + settings.Name;
               hyperLinkSettings.Properties.Text = "New";
               hyperLinkSettings.NavigateUrl = "javascript:void(0);";
               hyperLinkSettings.Properties.ClientSideEvents.Click = string.Format(@"function(s, e){{{0}.AddNewRow();}}", settings.Name);
           }).Render();
           ViewContext.Writer.Write("  ");
           Html.DevExpress().HyperLink(hyperLinkSettings =>
           {
               hyperLinkSettings.Name = "Pastelink_" + settings.Name;
               hyperLinkSettings.Properties.Text = "Paste";
               hyperLinkSettings.NavigateUrl = "javascript:void(0);";
               hyperLinkSettings.Properties.ClientSideEvents.Click = "function(s, e){OpenPopup(s, e);}";
           }).Render();
       });

       settings.Columns.Add("Id");
       settings.Columns.Add("name");
       settings.Columns.Add("city");

       settings.SettingsPager.Position = PagerPosition.TopAndBottom;
       settings.SettingsPager.FirstPageButton.Visible = true;
       settings.SettingsPager.LastPageButton.Visible = true;
       settings.SettingsPager.PageSizeItemSettings.Visible = true;
       settings.SettingsPager.PageSizeItemSettings.Items = new string[] { "10", "20", "50" };
   });

   if (ViewData["EditError"] != null)
   {
       grid.SetEditErrorText((string)ViewData["EditError"]);
   }

   grid.Bind(Model).GetHtml();

IT SHOWS ERROR IN THE BELOW LINE WITH ERROR FOR IQUERYABLE.

ERROR LINE : grid.Bind(Model).GetHtml();

ERROR DETAIL : Unable to obtain IQueryable instance from ''.'' or Selecting event