ASP.NET - Databinding in a Textbox

[MCC]

In a Web Form, I have a textbox binded to a column in a table in a dataset.

If I edited the text in the textbox, how can I automotically save the changes
back into the dataset without writing something like dataset1.tables(0).rows.(0).item(0)=textbox1.text
??

In Window Form, something like BindingManagementBase.position += 1 is enough
to do the job. Is there something similar in Web Form?