syncfusion - Hierarchical - Expand grid

[chandirasekaran S]

hi, see the attachement. i am try to reload the same data, it is throwing null reff.. exception.

VB2.zip

[Administrator]

Hi Chandirasekaran ,

You need to reset the hierarchylevel of the grid before modifying the underlying datasource. Here is a code snippet.

Me.gridDataBoundGrid1.Binder.InternalColumns.Clear()
Me.gridDataBoundGrid1.Binder.ResetHierarchyLevels()

Me.gridDataBoundGrid1.DataMember = "Categories"
Me.gridDataBoundGrid1.DataSource = ds

Here is a modified sample.
http://www.syncfusion.com/Support/user/uploads/VB2_d9565ef6.zip

Let me know if this helps.
Best Regards,
Haneef