RadGrid Save Settings on Groupings

[Patrice]

I have referenced the following code for saving grid settings for users
http://www.telerik.com/help/aspnet-ajax/grid-saving-settings-on-per-user-basis.html

All works well. However, when saving the object for grouping settings your page above suggests the following code:

Protected Overridable Sub SaveGroupByExpressions()          
  Settings.GroupByExpressionsStates = New Object(Grid.MasterTableView.GroupByExpressions.Count) {}           
  Dim i As Integer = 0           
  While i < Settings.GroupByExpressionsStates.Length             
    Settings.GroupByExpressionsStates(i) =(DirectCast(Grid.MasterTableView.GroupByExpressions(i),IStateManager)).SaveViewState()                               System.Math.Max(System.Threading.Interlocked.Increment(i), i - 1)
   End While       
End Sub

In the while statement the i variable is used for both the GroupByExpressionsStates index and the GroupByExpressions index.
If only one GroupBy expression is selected by the user, then the GroupByExpressions.Count  = 1 and the the object length = 2.
When going through the loop, it fails because once past the first index of 0, there is no group expression for Grid.MasterTableView.GroupByExpressions(1).

I'm trying to figure out why the empty object created by the statement:
Settings.GroupByExpressionsStates = New Object(Grid.MasterTableView.GroupByExpressions.Count) {}
is creating a Settings.GroupByExpressionsStates object with 2 empty arrays when only 1 is needed for this example?

Please see the attachments.

[Konstantin Dikov]

Hello Mark,

Thank you for contacting Telerik Support.

I have tested the scenario that you are describing and indeed, in VB, two objects are created in the objects array if you use New Object(1). Please note that in C# this will create only 1 object and it will work correctly.

I am assuming that when the help article was created, that part of the VB code was not correctly examined and I will forward that issue accordingly, so it could be fixed in the help article.

For the time being you should use the following line instead:

Settings.GroupByExpressionsStates = New Object(Grid.MasterTableView.GroupByExpressions.Count - 1) {}

Please let me know if any further assistance is needed on this matter.


Regards,
Konstantin Dikov
Telerik

 

 

[Patrice]

Awesome. I should've saw that. Thanks!
I was trying to adjust the index later on instead of in the new constructor.... ach!
Again, Mucho mucho gracias.