Exporting to Excel causes an exception while deserializing GridProperties

[Andrew]

I have code that is dealing with exporting a Grid control to Excel. Within the grid is a checkbox that's used for selecting specific rows. If I check a few rows and try to export I get an InvalidOperationException thrown when trying to deserialize the grid model JSON to a GridProperties object. The field that causes the exception is named CurrentIndex and it's type is int but the JSON has an array of ints in that field. To me this feels like an issue with the GridProperties class not matching the JavaScript model. What can be done to fix this issue?

[Prasanna Kumar Viswanathan]

Hi Andrew, 

Thanks for contacting Syncfusion support. 

We created a sample and in this sample we set column type as checkbox used for selecting specific rows. Once we check a few rows and export to excel we did not face any exception in our sample.  

Find the code example and sample:  

@(Html.EJ().Grid<object>("FlatGrid") 

        .Datasource((IEnumerable<object>)ViewBag.datasource) 

        .AllowPaging() 

        .IsResponsive() 

        .ToolbarSettings(toolBar => toolBar.ShowToolbar().ToolbarItems(items => 

         { 

            items.AddTool(ToolBarItems.ExcelExport); 

            items.AddTool(ToolBarItems.WordExport); 

            items.AddTool(ToolBarItems.PdfExport); 

         })) 

        .Columns(col => 

        { 

            col.Type("checkbox").Width(50).Add(); 

            col.Field("OrderID").HeaderText("Order ID").TextAlign(TextAlign.Right).Width(75).Add(); 

            ----------------------- 

       }) 

  ) 

Sample: http://www.syncfusion.com/downloads/support/forum/131992/ze/Sample145862-1775649623 

To find out the root cause, we need the following details. 

1. Share the code example of Grid and controller. 

2. Have you mentioned field property for the checkbox column? 

3. Share the screenshot and stackrace of an exception. 

4. Essential Studio Version details.  

5. If possible, replicate the issue in the attached sample.  

Regards, 

Prasanna Kumar N.S.V