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In our system one client may have multiple operators. However there is a “wish” from client.
One company has an account, however there can be mulitple operators assigned to this company. Client wants us to prepare a solution that only one operator from company can log in to the system at same time. How can I achieve this?
“I am using WPF application and the server is written in WCF, however this can be achieved. But what in situation when user has an application opened and was inactive for 30min?”
This system is going to be single-user, so I suggest you start a counter thread when a user logs in. When counter reaches 30 minutes, write a value to the db indicating that user has timed out and other users are free to login. Obviously, you should do the same thing when user explicitly logs out.