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RadTreeList does not reflect updated data on UpdateCommand

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TreeList
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Brent
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Brent asked on 19 Aug 2015, 08:30 PM

I am using a RadTreeList with an UpdateCommand, which updates one BIT field on SQL Server via a stored procedure. After the update, I force the RadTreeList to rebind its data source, but ​it OCCASIONALLY will not reflect the updated data (which I know for certain is getting set on SQL Server). Sometimes it shows the new value, sometimes not.

 What I have tried in the UpdateCommand:

protected void rtlRoster_UpdateCommand(object sender, TreeListCommandEventArgs e)
{

     //some code eliminated for brevity

     //Perform the update via SQL stored procedure
     SQL.Update​StoredProc(params...);

     //I have tried sleeping before reloading the data source, which is not preferred
     Thread.Sleep(1500);

     //I have tried forcing the data source to clear out explicitly and then resetting it to the proper data source afterwards
     rtlRoster.DataSource = new ArrayList();
     rtlRoster.DataBind();

     //I have tried ​forcing it to reload the data source explicitly
     rtlRoster_NeedDataSource(sender, new TreeListNeedDataSourceEventArgs(TreeListRebindReason.ExplicitRebind));

 

    //I have tried using this code from an online Telerik example (http://docs.telerik.com/devtools/aspnet-ajax/controls/treelist/data-editing/updating-records/using-inplace-and-editforms-modes)
     rtlRoster.EditIndexes.Clear();
     rtlRoster.Rebind();

 

    //And I have tried the brute force way of reloading the page           

    Response.Redirect(Request.RawUrl);

 }

 

I was hoping there would be some obvious setting that I could control, such as RadGrid's <ClientSettings>​<DataBinding EnableCache="false">, but I see no such property on the RadTreeList.

 

Any ideas why this would be happening intermittently and how to fix it?

 

ASP.NET version: 4.0.30319.34209 (though the .NET Framework is 4.5) 
OS: Windows 8.1 Pro 
exact browser version: IE11, Chrome 44.0.2403.155 m, and FF 39.0 
exact version of the Telerik product:  Telerik.Web.UI.dll 2013.2.717.45
preferred programming language (VB.NET or C#): C#

 

Thanks,

Brent Wood

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Angel Petrov
Telerik team
answered on 24 Aug 2015, 08:52 AM
Hi,

Generally the control should rebind automatically thus visualizing the updated data. That said I suggest removing all the highlighted code and testing the page again.

C#:
protected void rtlRoster_UpdateCommand(object sender, TreeListCommandEventArgs e)
{
 
     //some code eliminated for brevity
 
     //Perform the update via SQL stored procedure
     SQL.Update​StoredProc(params...);
 
     //I have tried sleeping before reloading the data source, which is not preferred
     Thread.Sleep(1500);
 
     //I have tried forcing the data source to clear out explicitly and then resetting it to the proper data source afterwards
     rtlRoster.DataSource = new ArrayList();
     rtlRoster.DataBind();
 
     //I have tried ​forcing it to reload the data source explicitly
     rtlRoster_NeedDataSource(sender, new TreeListNeedDataSourceEventArgs(TreeListRebindReason.ExplicitRebind));
 
  
 
     rtlRoster.EditIndexes.Clear();
     rtlRoster.Rebind();
 
  
 
    //And I have tried the brute force way of reloading the page          
 
    Response.Redirect(Request.RawUrl);
 
 }

If the suggested approach does not prove helpful please share with us the entire page contents(markup and code-behind) so we could examine the implementation and further research the matter.

Regards,
Angel Petrov
Telerik
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Brent
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Angel Petrov
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