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POUsername and role
 

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    <p>I have this databases: <code>table&lt;User&gt;(UserID,Name,Surname,Username,Password,Email)</code>, <code>table&lt;Role&gt;(RoleID,RoleName,Description)</code>, and <code>table&lt;UsersInRole&gt;(UserID,RoleID)</code>. I create a login authentication with username and password to access to the application (with Linq ToSql to store data), and it is right. Now I wish to create a role for each user, but I don't know how work out it; I saw some features about it but it refers to web.app.</p> <p>This is the code of the procedure that applies to login: </p> <pre><code>public partial class Window1 : Window { public Window1() { InitializeComponent(); } public bool ValidateApplicationUser(string userName, string password) { { var AuthContext = new DataClasses1DataContext(); var query = from c in AuthContext.Users where (c.Username == userName.ToLower() &amp;&amp; c.Password == password.ToLower()) select c; if(query.Count() != 0 ) { return true; } return false; } } private void mahhh(object sender, RoutedEventArgs e) { bool authenticated = true; { if (usernameTextBox.Text !="" &amp;&amp; passwordTextBox.Text != "") { authenticated = ValidateApplicationUser(usernameTextBox.Text , passwordTextBox.Text); } } if (!authenticated) { MessageBox.Show("Invalid login. Try again."); } else { MessageBox.Show("Congradulations! You're a valid user!"); Window3 c = new Window3(); c.ShowDialog(); this.Close(); } } } </code></pre> <p>I don't know how to implement a method to assign a role to the user. Do you have any idea or suggest to make it right?</p>
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