I have a login screen like this.
![](data:image/png;base64,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)
In this login screen record get inserted into aspnet_membership table of sql server. UserName and password get stored to this table in encrypted form. I want to retrive Userneme each time when user login with his userid and password and get stored into my different master tables. So problem is that how I can retrive UserName from login screen and get stored into another database tables as UserID?