Hey, I just want to share that I had the same issue, here is the stack trace:

[NotSupportedException: Data source contains no schema data.]
   Infragistics.Web.UI.GridControls.WebDataGrid.CopyFields() +799
   Infragistics.Web.UI.GridControls.WebDataGrid.FillFields() +186
   Infragistics.Web.UI.GridControls.WebDataGrid.DataBind() +803
   test.Page_Load(Object sender, EventArgs e) in c:\...
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +50
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627

In my case, the problem was my data source was a list of Order, for instance:

        List<Order> orders = new List<Order>();

        Order o;

        o = new Order();

        o.ID = 1;

        o.ClientCode = "Client1";

        o.Total = 22.99;

        orders.Add(o);

        o = new Order();

        o.ID = 1;

        o.ClientCode = "Client2";

        o.Total = 22.99;

        orders.Add(o);

That here was the definition of my Order class:

    class Order

    {

        public int ID;

        public string ClientCode;

        public double Total;

    }

The problem was with the members of the class Order, although public, were simply attributes, not methods... Here is what I had to do to solve the problem (promote them to methods):

    class Order

    {

        public int ID { get; set; }

        public string ClientCode { get; set; }

        public double Total { get; set; }

    }

That worked just fine.

-- Wagner

http://www.wagnerdanda.me/

Not sure if this will help anyone else or not. Perhaps it will just point out how new I am to ASP.Net. LOL

I ran into this error and was scratching my head over it. I got this while stepping through the code in Visual Studio. I go the "Break, Continue, or Ignore" box and if I hit ignore, I would get the same number of lines in the grid as I had objects in the bound list. But no data.

After checking, sure enough, I had forgotten to put any methods for Get and Set on the properties of the objects that the bound list contained. I added just the simeple { get; set; } after my properties and the error went away.