Permissions based security in C#
Posted on 2009-04-07
Hey guys, I am building an app in C# that needs to have permissions based security. I have 3 tables that apply to this in SQL.
Table 1: Users
Table 2: Available Permissions
Table 3: Assigned Permissions
Any user could have 1 or 50 permissions assigned to them. Each "section" within the app has a ID associated with it, and the permission for that area reflects that ID. For instance if the "Customers" section has an ID of '4' - then the user would need to have permission ID '4' assigned to them if they are going to need access to the "Customers" section of the application.
What is the best way for keeping the recordset containing the users assigned permissions so that I can reference it throughout the application? This recordset will need to be available on multiple forms at multiple times. I understand I could query the database, but that could be a large hit on the number of unnecessary requests.
I was considering a variable array? But I am lost how to query the array for a particular value without looping. Unless looping would be the best or only method? Maybe variable array isn't what I should use - maybe DataTable?
Any experienced suggestions would be great - thanks.