[2005] Changes not making it to dataset

[enrico1982]

Using the following to fill dataset:

jobDA = New OleDb.OleDbDataAdapter("SELECT * FROM jobs WHERE jobs.jobno = " & JobNo, con)
jobDA.Fill(jobDS)

Then adding databinding to textbox in form:

Dim tbl As DataTable = jobDS.Tables(0)
Me.txtOrderNo.DataBindings.Add("text", tbl, "OrderNo")

When i change the value of txtOrderNo jobDS.HasChanges stays false.
This is code which i have used before and worked fine. Any ideas?

TIA