Hello, I am new to C# and .NET. I am working on a application which will run on a number of machines at the same time. All instances will access a single access database in a shared directory. All instances will be able to update the database. What I need to do is detect if another instance has made a change to any table, then update the dataset in the local instance so that all instances will always show current data. I am not sure how to approach this issue. I thought of looking at the connection to the database State Change event but I am not sure a change by another process will trigger this event. I have not been able to find information on what triggers a state change event. I am looking for any suggestions on how to approach this problem.