Keep expanded item

[Fit2Page]

Hi,

In a hierarchical datagrid with two levels I am trying to keep the edited item expanded through

Public Sub Command_Row(ByVal Sender As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs)

If (TypeOf (e.Item) Is GridDataItem) Then
'do the stuff here

dtgProducts.ReBind()
e.Item.OwnerTableView.ParentItem.Expanded = True
End if

End Sub

Does anybody have a clue why this isn't working?

Marc

[Veli]

Hello Fit2Page,

Once you rebind your grid, e.Item does not hold a valid reference of your item, because the grid has rebound and items are recreated. A more recommendable approach would be to save a unique key identifying your item before rebind and then search for the item with the same key after rebinding:

Public Sub Command_Row(ByVal Sender As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs)

    If (TypeOf (e.Item) Is GridDataItem) Then
    'do the stuff here

    Dim expandedItemId As Integer = CType(e.Item.OwnerTableView.ParentItem.GetDataKeyValue("ID"), Integer)

dtgProducts.Rebind()

dtgProducts.MasterTableView.FindItemByKeyValue("ID", expandedItemId).Expanded = True
End if

End Sub

Best wishes,
Veli
the Telerik team

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[Fit2Page]

Thanks Veli, works like a charm.