Object reference not set to an instance of an object

Hi Guys

I keep getting this message when i go into one form. The problem is that another screen that looks extactly the same, is able to go in, but not this one.

The message always comes up with:

Object reference not set to an instance of an object.

The code where this appearing is:

Public Class Units
 Inherits System.Windows.Forms.Form
 Private connunitstring As String = "Server=Test;database=Info;Pwd=Test;User Id=Mis;"
 Private dsfac As DataSet
 Private fac_code As String
 Private fac_desc As String
 Private dtunit As DataTable
 Private daunit As SqlDataAdapter
 Private daFacDept As SqlDataAdapter
 Private dvFacDept As DataView
 Private dsFacDept_codesearch As New DataSet()
 Property facdeptcode() As String
 Get
 Return (fac_code)
 End Get
 Set(ByVal Value As String)
 fac_code = Value
 End Set
 End Property
 Property facdepttext() As String
 Get
 Return fac_desc
 End Get
 Set(ByVal Value As String)
 fac_desc = Value
 End Set
 End Property
 Property FacDeptSearch() As DataSet
 Get
 Return dsFacDept_codesearch
 End Get
 Set(ByVal Value As DataSet)
 dsFacDept_codesearch = Value
 End Set
 End Property
 Sub CreateFacDeptBindComboBox()
 Dim sqlFacstr As String = "Select F_desc,F_Dept from Fac_Dept order by F_Dept"
 Try
 Dim connunit As New SqlConnection(connunitstring)
 Dim cmdFac As New SqlCommand(sqlFacstr, connunit)
 cmdFac.CommandType = CommandType.Text
 daFacDept = New SqlDataAdapter(cmdFac)
 dsfac = New DataSet()
 daFacDept.Fill(dsFacDept_codesearch, "Fac_Dept")
 Dim mygrow As DataRow
 For Each mygrow In FacDeptSearch.Tables("Fac_Dept").Rows
 CmbFaculty.Items.Add(CType(mygrow.Item(0), String))
 CmbFaculty.SelectedIndex = 0
 Next
 Catch exp As Exception
 MsgBox(exp.Message.ToString)
 End Try
 End Sub
 Private Sub Units_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
 CreateFacDeptBindComboBox()
 End Sub

Any help on this would be appricated.

Regards

ChrisCan you throw us a bone here and let us know EXACTLY what line the error occurs on?
Sorry Forgot to say which line the error occurs in.

When i run the debugger, the error occurs at

CMBFaculty.selectedindex = 0
Where does this object -

CmbFaculty

- come from? Object reference not set to an instance of an object usually indicates that you are attempting to use a reference object that does not point to anything. It is like attempting the following...

Public Sub SomeRoutine()
 ' Wrong
 Dim dbConn As SqlConnection
 ' Correct
 ' Dim dbConn As SqlConnection = New SqlConnection()"
 dbConn.Open()
 ' Do some data stuff
 dbConn.Close()
End Sub

Clearly you cannot open the connection if there's nothing to open :)

-BC