Update Dataset Back To Remote Database Via Web Service

I am connecting to a web service that returns a dataset that I use as a datasource for a windows client datagridview.

Once a user has made changes to the datagridview record(s), how do I get those changes back to the connected dataset and back to the remote database.

I wrote the sql update function in the service:

Code Snippet from web service

<WebMethod()> _
Public Sub Update_equipment_repair(ByVal repair_id As Int64, ByVal date_entered As DateTime, ByVal date_sent_in As DateTime, ByVal date_returned As DateTime, ByVal damage_description As String, ByVal vendor_id As Int64, ByVal repair_description As String)

[Code]....

This displays the records perfectly and I figured out how to delete and insert records via web service.

writing updates from the datagridview back to the database.