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190
igGrid don't display data
posted

Hi,

when call page I see only busy indicator, but no data is displayed.

This is the code I use:

.cshtml

@(Html.Infragistics().Grid<TargheAutorizzate>()
    .ID("GridTarghe")
    .AutoGenerateColumns(true)
    .DataSourceUrl(Url.Action("TargheAutorizzateList")).DataBind().Render()
  )
TargheAutorizzate is my model and TargheAutorizzateList is my Action.
.cs
        [Infragistics.Web.Mvc.GridDataSourceAction]
        [ActionName("TargheAutorizzateList")]
        public ActionResult TargheAutorizzateList()
        {
            var targheautorizzate = db.TargheAutorizzate.Include(t => t.Enumerativi)
                .Where(t => t.DataEliminazione == null).OrderBy(t => t.Targa);
            return View(targheautorizzate.ToList());
        }
This is the method I use in the code.
The method is executed but no data is displayed.
_layout.cshtml
    <link href="@Url.Content("~/Content/IGStyles/base/ig.ui.min.css")" rel="stylesheet" type="text/css" />
    <link href="@Url.Content("~/Content/IGStyles/ig/jquery.ui.custom.css")" rel="stylesheet" type="text/css" />
    <script src="@Url.Content("~/Scripts/IG/jquery-ui.min.js")" type="text/javascript"></script>
    <script src="@Url.Content("~/Scripts/IG/jquery.tmpl.js")" type="text/javascript"></script>
    <script src="@Url.Content("~/Scripts/IG/ig.ui.min.js")" type="text/javascript"></script>
This are style sheets and scripts that I have included in _layout page.
Anyone can help me?
Thanks you in advance.
Mirko

 

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  • 24671
    posted

    hi Mirko,

    i think what happens is that you have AutoGenerateColumns = true, but at the same time the grid is not initially supplied with a DataSource. So it sends just the initialization scritpts to the client (browser), but it cannot generate columns because there is no data from which to retrieve the columns info, it needs to do a request first, specified by DataSourceUrl.

    There are to solutions to the issue you're experiencing:

    1) Supply a data source in the View: so instead of

    Grid<TargheAutorizzate>() you can just put Grid(Model)

    The additional advantage of doing it, is that there will be only a single request to your view, because the data will be sent automatically by the MVC Grid inline in the response, so there won't be any need for a second request just to fetch and bind the data.

    2) Keep the above as is, but instead of AutoGenerateColumns=true, define your columns manually

    Let me know if this solves your case. Thank you!

    Angel

     

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