I encounter a problem in using combox to the event "Click". Supposed that i had a dataset, i want to populate my comboBox with the column(0) of dataset. It is working but it has a little problem. "I the first Click_Event the data was not shown"(error). But in the next Click event its working. Here is my code:

Private Sub cboFloorNumber_Click(ByVal sender As Object, ByVal e As System.EventArgs)   
            Handles cboFloorNumber.Click
   Dim i As Integer
   cboFloorNumber.Items.Clear 
   For i = 0 To m_oDataManagement.OleDataSet.Tables(0).Rows.Count - 1
      cboFloorNumber.Items.Add(m_oDataManagement.OleDataSet.Tables   ("UnitInformation").Rows(i)(0))
 
   Next
End Sub