Deserialization failure error in Infragistics webdatagrid V15.2

Question

A large amount of data is loaded in Webdatagrid from DB. I am using virtualscrolling property of webdatagrid to load data dynamically on scrolling. Since there is a number of records, if the scroll is clicked and dragged, then there is a loading symbol which leads to "Deserialization failure" error.

Answer 1

A possible solution could be to increase the default timeout (20 seconds) of the control callback manager. You could use the protected _callbackManager object which is referenced by each Aikido control. To increase the WebDataGrid timeout period you can do the following:

Code snippet:

<script type="text/javascript">
        function Init(sender, eventArgs) {
            sender._callbackManager.setTimeout(60000);
        }
 </script>


 ...
<ig:WebDataGrid ID="WebDataGrid1" runat="server" DataSourceID="EmployeesDataSource" 
    Width="100%" DataKeyFields="OrderID">
    <ClientEvents Initialize="Init" />

Client event AJAXResponse also could be used, insted of Initialize, it depends of the use case.

Another cause of this failure could be the rendering of the WebDataGrid after postback (if any). For example if you have nested WebDataGrid, and makes a postback, make sure it is visible and the parent controls is visible also, or the rendering methods wont be called.

In conclusion, make sure that you are following the recommendations from Infragistics documentation for Virtual Scrolling, like configuring Row Cache Factor, Threshold Factor and Data Fetch Delay.