Multi thread tab control

[IneedaSmoke]

Hey all, wondering if anyone knew whether or not multi thread tab control could work.

I have a tab control that I create tabs programmatically. I tried creating the tabs as new threads, but i'm getting thread conflict errors.

    Private Sub loadTCTabs(ByVal productList As ArrayList)

        For Each item In productList
            positionCounter.addALClasses(item)
            Dim newThread As Thread
            newThread = New Thread(AddressOf createTab)
            newThread.Start()

        Next




    End Sub

    Private Sub createTab()


        Dim newTab As New TabPage
        Dim newDGV As New DataGridView
        Dim positionData As New ArrayList
        positionData = positionCounter.getCurrentValueClassCounterPosition
        newTab.Text = positionData(1)



        newTab.Controls.Add(newDGV)
        newDGV.Width = 815
        newDGV.Height = 606
        newDGV.Location = New System.Drawing.Point(0, 3)



        tcOutput.TabPages.Add(newTab)


    End Sub

 

[JohnH]

You have to create the controls in UI thread - else you would have to destroy the window handles, move them to UI thread and create new window handles there, I wouldn't recommend it. Time consuming data processing you can do in other threads.

 

[IneedaSmoke]

Ok, thanks. I got all these processors just sitting there lol. I'll multithread the calculations in the datagrids. I'm not maxing the one proc though so I guess it's my sql calls that are my bottleneck but i'm trying to get in the habit of multithreading whenever I can.