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Editorial Team
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Asked: 2026-06-08T03:41:14+00:00

I have MVC2 view in which there is a grid and image button. When

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I have MVC2 view in which there is a grid and image button. When image button is clicked, it will pass the data of grid’s currentPage, filter and orderBy fields … to another controller. The code is,

<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<MaintenanceEditableViewModel>" %>

"Image button"
<a href="<%: Url.Action("ExportToExcel", "ExportExcelButton", new { resourceId = ViewData["resourceId"], pagenum = ViewData["page"], orderBy = ViewData["orderBy"], filter = ViewData["filter"] }) %>">
<img src='<%: Url.Content("~/Content/Images/ExportExcelButton.gif") %>' /></a>

"Grid"
<%= Html.Telerik().Grid<MaintenanceAthletesResultsViewModel>()
.Name("Grid")
.TableHtmlAttributes(new { style = "font-size:8pt;" })
.HtmlAttributes(new { style = "height:335px" })
.DataKeys(k => k.Add(k2 => k2.ResultID))
.DataBinding(dataBinding => dataBinding.Ajax()
.Select("AthletesResultsAjax", "Maintenance")
...

"Action to initialize the grid in Maintenance controller"
public ActionResult AthletesResults(string id, bool editable)
{
ViewData["resourceId"] = id;
this._resourceBL.PopulateMaintenanceResourcesViewData(id, this.SelectedSport());

MaintenanceEditableViewModel model = new MaintenanceEditableViewModel { Editable = editable };
return View(model);
}

[GridAction]
public ActionResult AthletesResultsAjax(string id, int page, string orderBy, string filter)
{
List<MaintenanceAthletesResultsViewModel> model = null;

if (!string.IsNullOrEmpty(id))
{
ViewData["page"] = page;
ViewData["orderBy"] = orderBy;
ViewData["filter"] = filter;

model = this._resourceBL.GetMaintenanceAthletesResultsViewModel(int.Parse(id));
}

return View(new GridModel(model));
}

public ActionResult ExportToExcel(string resourceId, string pagenum, string orderBy, string filter)

The strange thing is that only ViewData[“resourceId”] (set in initialization of view) is able to be passed. The 3 parameters, ViewData[“page”], ViewData[“orderBy”], ViewData[“filter”] (set in grid ajax action) can not be passed. All 3 are null in ExportToExcel and so I think they are not correctly stored in ViewData (I am not sure how to check ViewData when image button is pressed). I am confused and need help on this.

Thanks

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1 Answer

  1. Editorial Team

    I don’t see how/where you’re sending those arguments into the AthletesResultsAjax action. The signature of the dataBinding.Ajax().Select() function you’re using only specifies the action and the controller name. How is it going to know what those values are? You need to specify a routeValues object to send the appropriate data to the controller action. If you debug the code and put a breakpoint in your ajax action, do the actual values come through? I could be quite off here but I think your problem is more on this end than on how the data is being stored in the ViewData.

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