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[Solved] Specified argument was out of the range of valid values

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Grid

This is a migrated thread and some comments may be shown as answers.

Dany V asked on 09 Nov 2009, 11:34 PM

Hi, I'm having a problem with a Grid, the thing is that I automatically expand the items and save the expand state when an update is done...but sometimes brings me this error:
Specified argument was out of the range of valid values.
Parameter name: ItemHierachicalIndex
I got the code to keep the state of the grid, from a telerik forum; this is where the page marks me the error

Protected Sub RadGrid1_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadGrid1.DataBound

'Expand all items using our custom storage

Dim indexes As String() = New String(Me.ExpandedStates.Keys.Count) {}

Me.ExpandedStates.Keys.CopyTo(indexes, 0)

Dim arr As New ArrayList(indexes)

'Sort so we can guarantee that a parent item is expanded before any of

'its children

arr.Sort()

For Each key As String In arr

If key Is Nothing Then

Else

Dim value As Boolean = DirectCast(Me.ExpandedStates(key), Boolean)

If value Then

------------------------>>>>>> RadGrid1.Items(key).Expanded =

True <<<<<<<---------------------

End If

End Sub

[Solved] Specified argument was out of the range of valid values

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