Hi Alex,

Thanks for the reply. I have looked at the Persistence framework, but it is very cumbersome. 

I only need to persist very specific pieces of control data and not the complete control.

If there is a way to achieve this with the Persistence Framework please enlighten me, otherwise, could you please advise me on a way to achieve my original goal.

Regards,

Tom

Hello Tom,

Yes, you can persist a particular peaces of the grid. Let say you want to persist the WebHierarchicalDataGrid's Behaviors property. All you need to do is:

       //Persisting:

        PersistenceManager manager = PersistenceManager.GetInstance();

        ControlData data = manager.SaveControl(this.WebHierarchicalDataGrid1.Behaviors, "WebHierarchicalDataGrid1Behaviours");

        string xml = data.ToXml(); //save this xml somewhere

       //Restoring:

      ControlData data2 = ControlData.FromXml(xml);

      manager.LoadControl(this.WebHierarchicalDataGrid1.Behaviors, data2);

Thanks

Ivan

Hello Ivan & co.,

Thank you for the information. This was very helpful.

I am however still not able to fully persist the grid column layout data.

Is there an example you can point me too, to achieve this.

I am specifically interested in the column widths as I would like to persist this information between user sessions.

Regards,

Tom

Hello Tom,

Did you try to resize the column sizes prior to persist them? Also, please enable the resizing behavior like this:

<

Behaviors>

</

Behaviors>

Resize some columns when page is loaded and try again to persist the columns collection.

Thanks

Ivan

Hello Ivan,

I have tried your sample code, but the column width is always empty. Whether I specify the columns from the grid or the grid.grid view - as below.

Other property data is however persisted - so I am not sure why the widths are not persisted.

Private Sub PersistenceSaved()

        Dim manager As Persistence.PersistenceManager = Persistence.PersistenceManager.GetInstance()

        Dim behaviorData As Persistence.ControlData = manager.SaveControl(Me.whdgDefault1.Behaviors, "gridBehaviours")

        _gridSettings.PersistedBehaviors = behaviorData.ToXml()

        Dim columnData As Persistence.ControlData = manager.SaveControl(Me.whdgDefault1.GridView.Columns, "gridColumns")

        _gridSettings.PersistedColumns = columnData.ToXml()

    End Sub

The columns are initialized before the Persistence sub is called - during the grid.initializeband event.

Any other ideas?

--Tom

Hello Tom,

if you want to persist the Column on the Root level you can call:

PersistenceManager

manager = PersistenceManager.GetInstance();

ControlData

"WebHierarchicalDataGrid1Columns");

If you want to persist the Columns of the first sub-band you can call:

ControlData

data = manager.SaveControl(WebHierarchicalDataGrid1.Bands[0].Columns, "WebHierarchicalDataGrid1Columns");

Have in mind, that the columns should be defined either in code behind or in the markup of the page. If columns are auto generated this approach would not work.

 Thanks

Ivan