Hello Team,
I face an issue while using 'Xlsx' while Export to Excel. I do development on a Virtual desktop which has VS 2015. Also this desktop does not have Microsoft Office installed(Hope this is not a limitation but just want to add). I am copying the error below,
[NullReferenceException: Object reference not set to an instance of an object.]
Telerik.Web.UI.GridExpandColumn.PrepareCell(TableCell cell, GridItem item) +2865
Telerik.Web.UI.GridItemDecorator.DecorateItem(GridTableView owner, GridColumn[] columnArray) +510
Telerik.Web.UI.GridInfrastructureExporter.CreateRow(GridItem currentItem, Int32& invisibleRows, Int32 row, Boolean isMultiRow) +455
Telerik.Web.UI.GridInfrastructureExporter.GenerateStructure() +654
Telerik.Web.UI.Grid.Export.TableViewExporter.ExcelExportRenderForm(HtmlTextWriter nullWriter, Control form) +1749
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +116
System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +130
System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +46
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +78
System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +49
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +116
System.Web.UI.Page.Render(HtmlTextWriter writer) +38
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +78
Telerik.Web.UI.RadAjaxControl.RenderPageInAjaxMode(HtmlTextWriter writer, Control page) +952
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +116
System.Web.UI.Page.Render(HtmlTextWriter writer) +38
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +78
Telerik.Web.UI.RadAjaxControl.RenderPageInAjaxMode(HtmlTextWriter writer, Control page) +952
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +116
System.Web.UI.Page.Render(HtmlTextWriter writer) +38
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +78
System.Web.UI.<ProcessRequestMainAsync>d__523.MoveNext() +13204
Kindly help.