How to update DataGrid in another form

[wtfia2k]

Hi everyone,
do you remember ALF? "Stuck on earth" - that's the way I'm feeling.

What I want to do is update the datagrid with the new values I got from this Sub (handled by a timer):

Private Sub HandlefrmStatus(ByVal aEvents As Array, ByVal bFirstRun As Boolean)
        Dim iClear As Decimal
        Dim i, j As Integer

        Dim ds As New DataSet
        Dim tbl As New DataTable("EVENTS")
        Dim col As DataColumn
        Dim row As DataRow

        ds.Tables.Add(tbl)
        col = tbl.Columns.Add(" ")

        For i = 1 To aEvents.GetUpperBound(1)
            col = tbl.Columns.Add(aEvents(0, i))
        Next i

        For i = 1 To aEvents.GetUpperBound(0)
            row = tbl.NewRow()
            For j = 0 To aEvents.GetUpperBound(1)
                row(j) = aEvents(i, j)
            Next j
            tbl.Rows.Add(row)
        Next i

        frmStatus.DataGrid1.DataBindings.Clear()
        frmStatus.DataGrid1.SetDataBinding(ds, "EVENTS")

        frmStatus.Opacity = 0
        frmStatus.Refresh()
        frmStatus.Visible = True

        If frmStatus.Opacity < 1 Then
            'we fade in
            For iClear = 0 To 1 Step 0.001
                frmStatus.Opacity = iClear
            Next
        End If

    End Sub

In the second run I get a "no value for index 0".
What am I doing wrong?

Thanks for your help.

wtfia2k

 

[SqueakinSweep]

Rather than reassigning the grids datasource, why dont you simply pass the EVENTS Table by reference into your Sub


Sweep
...if it works dont f*** with it
...if its f****ed blame someone else
...if its your fault that its f***ed, say and admit nothing.

 

[wtfia2k]

Thank you SqueakinSweep.
But I'm not sure if we're talking about the same thing.
I'll try to clarify:

Private Sub tPollFired(ByVal Source As Object, ByVal e As System.Timers.ElapsedEventArgs)
        ReadEvents(False)
    End Sub

ReadEvents builds an array and calls HandlefrmStatus with this array.
In another form, called frmStatus, exists a Datagrid, who's data should be updated, every time (15 seconds) tPollFired is fired.

Do I have an error by design?
Maybe a code-snippet could clarify my confusion?

Thanks for your help.

wtfia2k