[2005] Can't update, change or add new row in a Access database

[sparrow1]

Hi All,

I'm trying to create a first Database and use a AccessDatabase to do so.

The problem I have is that:

- Can't create a new Row
- Can't update my database
- Can't commit my database

Every time I've got an erros saying that:
Object reference not set to an instance of an object.

Here's my code to update my database:

Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click
        Dim cb As New OleDb.OleDbCommandBuilder(da)
        da.Fill(ds, "AddressBook")

        ds.Tables("AddressBook").Rows(inc).Item(1) = IDTextBox.Text
        ds.Tables("AddressBook").Rows(inc).Item(1) = FirstNameTextBox.Text
        ds.Tables("AddressBook").Rows(inc).Item(2) = SurnameTextBox.Text

        da.Update(ds, "AddressBook")

        MsgBox("Data updated")
    End Sub

Thanks in advance,

sparrow1