Having trouble with the SPRadGrid Web Part on Sharepoint 2010

[Stan]

This is SharePoint 2010 server .I can run the SPRadGrid web part from a Parent site with no trouble accessing a SharePoint list on but when I try the same thing on a child site I get the following errors in the ULS logs.

​Application error when access /sites/home/teststan/SitePages/New.aspx, Error=Object reference not set to an instance of an object.
at Telerik.Ajax.SharePoint.GridSPListTableViewBuilder.BuildGridStructureInternal(SPListBindingStructure tableView, GridTableView gridTableView)
at Telerik.Ajax.SharePoint.GridSPListTableViewBuilder.BuildDataStructure()
at Telerik.Ajax.SharePoint.SPListBinder.SetUpGridControlOnInitialLoad()
at Telerik.Ajax.SharePoint.GridBindingManager.CreateRadGridControl()
at Telerik.Ajax.SharePoint.TelerikSPRadGridWebPart.CreateRadGridControl()
at Telerik.Ajax.SharePoint.TelerikSPRadGridWebPart.CreateChildControls()
at System.Web.UI.Control.EnsureChildControls()
at Telerik.Ajax.SharePoint.TelerikDataBoundWebPart.OnInit(EventArgs e)
at System.Web.UI.Control.InitRecursive(Control namingContainer)
at System.Web.UI.Control.AddedControl(Control control, Int32 index)
at System.Web.UI.WebControls.WebParts.WebPartManager.WebPartManagerControlCollection.AddWebPartHelper(WebPart webPart)
at System.Web.UI.WebControls.WebParts.WebPartManager.WebPartManagerControlCollection.AddWebPart(WebPart webPart)
at System.Web.UI.WebControls.WebParts.WebPartManagerInternals.AddWebPart(WebPart webPart)
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartWithRetry(WebPart webPart)
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.CreateWebPartsFromRowSetData(Boolean onlyInitializeClosedWebParts)
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.LoadWebParts()
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.OnPageInitComplete(Object sender, EventArgs e)
at System.EventHandler.Invoke(Object sender, EventArgs e)
at System.Web.UI.Page.OnInitComplete(EventArgs e)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

and

System.NullReferenceException: Object reference not set to an instance of an object.
at Telerik.Ajax.SharePoint.GridSPListTableViewBuilder.BuildGridStructureInternal(SPListBindingStructure tableView, GridTableView gridTableView)
at Telerik.Ajax.SharePoint.GridSPListTableViewBuilder.BuildDataStructure()
at Telerik.Ajax.SharePoint.SPListBinder.SetUpGridControlOnInitialLoad()
at Telerik.Ajax.SharePoint.GridBindingManager.CreateRadGridControl()
at Telerik.Ajax.SharePoint.TelerikSPRadGridWebPart.CreateRadGridControl()
at Telerik.Ajax.SharePoint.TelerikSPRadGridWebPart.CreateChildControls()
at System.Web.UI.Control.EnsureChildControls()
at Telerik.Ajax.SharePoint.TelerikDataBoundWebPart.OnInit(EventArgs e)
at System.Web.UI.Control.InitRecursive(Control namingContainer)
at System.Web.UI.Control.AddedControl(Control control, Int32 index)
at System.Web.UI.WebControls.WebParts.WebPartManager.WebPartManagerControlCollection.AddWebPartHelper(WebPart webPart)
at System.Web.UI.WebControls.WebParts.WebPartManager.WebPartManagerControlCollection.AddWebPart(WebPart webPart)
at System.Web.UI.WebControls.WebParts.WebPartManagerInternals.AddWebPart(WebPart webPart)
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartWithRetry(WebPart webPart)
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.CreateWebPartsFromRowSetData(Boolean onlyInitializeClosedWebParts)
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.LoadWebParts()
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.OnPageInitComplete(Object sender, EventArgs e)
at System.EventHandler.Invoke(Object sender, EventArgs e)
at System.Web.UI.Page.OnInitComplete(EventArgs e)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

[Marin]

Hi,

I tested the described scenario with a web part in child site but could not replicate the issue. You can check the permissions of the child site whether they are the same as the parent site, the type of the parent and child sites, also where exactly is located the SPList that you bind to - in the child site or parent site and if it has any specific settings or fields configured in it.
This information can help us determine whether there are any specific settings and configuration required to replicate the issue.

Regards,
Marin
Telerik