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Save and Retrieve from Database

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Jon
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Jon asked on 14 May 2012, 08:27 AM

Hi,

 

I am saving the transferred items from the RadListBoxDestination Box into one database field like so:-

Dim _RadListBoxDestinationText As String = Nothing
        For Each item As RadListBoxItem In RadListBoxDestination.Items
            _RadListBoxDestinationText = _RadListBoxDestinationText + item.Value.ToString + vbCrLf
        Next

'Save_RadListBoxDestinationText to the Database

The data saves OK
, but then when the user returns I need to repopulate the Destination box and I am trying to do it like so

Dim _DBString As String = _dr("EOT3CCa")
            Dim _DBSplitString As String() = _DBString.Split(New Char() {vbCrLf})
 
            Dim _Text As String
 
            For Each _Text In _DBSplitString
 
                Dim item As RadListBoxItem = RadListBoxSource.FindItemByText(_Text)
                RadListBoxSource.Transfer(item, RadListBoxSource, RadListBoxDestination)
              
            Next

I get an 'object reference not set..'
I can output the split string into an ordinary textbox just fine but not the RadListBox - it can't find the items.

Is there a better way to do this?

All help most appreciated.

Cheers,
Jon

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Dimitar Terziev
Telerik team
answered on 17 May 2012, 08:01 AM
Hi Jon,

Could you specify which reference is not set to an instance of an object? It seems to me that the following statement does not return a result:
Dim item As RadListBoxItem = RadListBoxSource.FindItemByText(_Text)

Please specify the transferring mode which you are using, is it copy or move?

All the best,
Dimitar Terziev
the Telerik team
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Jon
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Dimitar Terziev
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