Datalist - Listbox: Parse CSV string/value and pre-select multiple items

Posted on 2004-09-09
Medium Priority
Last Modified: 2008-03-17
I have a listbox and am allowing the user to make multiple selections from it - the selected values are combined and concatenated via the below code and then insterted into a single SQL column.  

        Dim str3() As String
        Dim strHardware As String
        For i As Integer = 0 To lbServersHardwareAffected.Items.Count - 1
            If lbServersHardwareAffected.Items(i).Selected = True Then
                strHardware = strHardware + lbServersHardwareAffected.Items(i).Text
                strHardware = strHardware + ", "
            End If
        If Not strHardware = "" Then
            strHardware = Left(strHardware, Len(strHardware) - 2)
        End If
        str3 = strHardware.Split(CType(",", Char))

What I am trying to do is to grab the results from the SQl column (e.g. = value1, value2, value3) and setup a listbox in a datalist to pre-select the values.  I am using a Dataset and a store rpocedure to select and return the data from the database.  Need it in VB.NET if possible -
Question by:tbaseflug
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LVL 17

Expert Comment

ID: 12021234
what are you doing after you split them, how are they stored in your db field?

Author Comment

ID: 12021283
They are actually combined and then stored in the db field as:

value1, value2, value3

What I need to do is split them from the db
LVL 17

Expert Comment

ID: 12021329
I use this to split csv from my sql server for a csv of users:

HttpContext.Current.User = New GenericPrincipal(User.Identity, Split(authTicket.UserData, ","))

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Author Comment

ID: 12021357
Any idea how I would set the selections to a listbox to from something like that?
LVL 17

Accepted Solution

AerosSaga earned 2000 total points
ID: 12021368
Once you have them to strings insert them like this:

ddl.Items.Insert(0, MyStringVariable);

Author Comment

ID: 12027063
Let me give it a shot and will let you know as soon as I am done - thanks!!!!

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