Writing Data to Usertable

I just started with the SDK for SBO.

One of the examples is called Matrix

I fooled around with it. I understand how to get data from a

UserTable and place it in the Matrix. But I want to Save the

changed data to my User table.

Is there a way to Save the Data in DBDatasource to a UserTable?

I Already looked around on this forum but, I did not find a solution.

Some can provide me with some sample code?

Thanks

Michiel Kramer