Hi,

I'm filling a datagridview with a DataTable, it worked fine but since I started using a thread to fill it, DataGridView does not show the vertical scrollbar, has anybody solved this ?

Private LoadOrdersThread As New Thread(New ThreadStart(AddressOf LoadOrders))

Private Sub frmTicket_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
LoadOrdersThread.Start()
End Sub

Private Sub LoadOrders()
dgOrders.DataSource = DRSLoadOrders (datatable)
LoadOrdersThread.Abort()
End Sub

Well, I finally found the solution for those with the same problem.

When using threads, the thread cannot access UI because UI it wasn't created by the thread. In this case we have to use Delegate and Invoke, here's how the above code works ok and now the vertical bar appears:

Private Delegate Sub Conect_Delegate(ByVal dg As DataGridView, ByVal Table As DataTable)
Private Orders As New DataTable
Private LoadOrdersThread As New Thread(New ThreadStart(AddressOf LoadOrders))

 Private Sub frmTicket_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        LoadOrdersThread.Start()
 End Sub

 Private Sub LoadOrders()
        Orders = MyFunctionToFillDataTable
        If dgvOrders.InvokeRequired Then
            dgvOrders.Invoke(New Conect_Delegate(AddressOf Conect), dgvOrders, Orders)
        End If
        LoadOrdersThread.Abort()
End Sub

 Private Sub Conect(ByVal dgv As DataGridView, ByVal xTable As DataTable)
        dgv.DataSource = xTable
End Sub

Hope it helps !!!

Well, I finally found the solution for those with the same problem.

When using threads, the thread cannot access UI because UI it wasn't created by the thread. In this case we have to use Delegate and Invoke, here's how the above code works ok and now the vertical bar appears:

Private Delegate Sub Conect_Delegate(ByVal dg As DataGridView, ByVal Table As DataTable)
Private Orders As New DataTable
Private LoadOrdersThread As New Thread(New ThreadStart(AddressOf LoadOrders))

 Private Sub frmTicket_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        LoadOrdersThread.Start()
 End Sub

 Private Sub LoadOrders()
        Orders = MyFunctionToFillDataTable
        If dgvOrders.InvokeRequired Then
            dgvOrders.Invoke(New Conect_Delegate(AddressOf Conect), dgvOrders, Orders)
        End If
        LoadOrdersThread.Abort()
End Sub

 Private Sub Conect(ByVal dgv As DataGridView, ByVal xTable As DataTable)
        dgv.DataSource = xTable
End Sub

Hope it helps !!!