Error while updating data with dataadapter.update(datatable), mysql

Hello experts!

I have stucked with my app. I have installed mysql driver and tried to use tableeditor sample from mysql ab. The problem is that it doesn't update data in tables :/

My code is:

            con = New MySqlConnection(conStr)

            tbl = New DataTable

            da = New MySqlDataAdapter("SELECT * FROM " + TableName, con)

            datagrid.DataSource = tbl

until now everything works fine. but when I try to update changes with code:

        Dim Changes As DataTable = tbl.GetChanges

I receive error message, whitch says that I need a proper UpdateCommand while sending rows with changed or new rows. I don't know why it doesn't work.

help, please :)
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
you have to define the updatecommand of the dataadapter:
klm-softAuthor Commented:
I did as you suggested, but nothing has changed. I did everything as in example :(
I have the exact same problem. What are we not doing right?????
klm-softAuthor Commented:
I gave up abd bought MS VS2008 :) Do the same. Now I update database with no problems :)
PAQed with points refunded (100)

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