started working on the login itself, need to add the sql query

Project.Controller/AppController.cs

@@ -4,10 +4,18 @@ namespace Project.Controller;
 
 public partial class AppController
 {
+    //save new login - hashes the password and gives it to persistence
     public static void NewLoginSave(string username, string password, string email)
     {
         string hashedPassword = ShaHash.HashPassword(password);
         var user = new NewUser(username, hashedPassword, email);
         SQLite.SaveUser(user);
     }
+
+    public static void CompareLogin(string username, string password)
+    {
+        string hashedPassword = ShaHash.HashPassword(password);
+        string Username = username;
+        SQLite.GetLogin(Username, hashedPassword);
+    }
 }

Project.Persistence/SQLite.cs

@@ -45,7 +45,6 @@ public partial class SQLite
     {
         using var connection = new SqliteConnection($"Data Source={_dbPath}");
         connection.Open();
-        connection.Open();
         using (var command = connection.CreateCommand())
         {
             command.Parameters.AddWithValue("@loginname", user.NewLoginName);

Project.Persistence/SQLite2.cs

@@ -0,0 +1,19 @@
+using Microsoft.Data.Sqlite;
+using Project.Model;
+namespace Project.Persistence;
+
+public partial class SQLite
+{
+    //get login name and password to compare it with inputs
+    public static void GetLogin(string username, string password)
+    {
+        using var connection = new SqliteConnection($"Data Source={_dbPath}");
+        connection.Open();
+        using (var command = connection.CreateCommand())
+        {
+            command.CommandText =
+                @"
+                ";
+        }
+    }
+}

Project.View/Login Page/LoginPage.axaml

@@ -14,7 +14,10 @@
             Orientation="Vertical"
             VerticalAlignment="Center">
             <TextBlock>Your Login Name:</TextBlock>
-            <TextBox TextWrapping="Wrap" Watermark="Login-Name" />
+            <TextBox
+                TextWrapping="Wrap"
+                Watermark="Login-Name"
+                x:Name="LoginNameBox" />
 
             <TextBlock>Password:</TextBlock>
 
@@ -22,7 +25,8 @@
             <TextBox
                 PasswordChar="*"
                 TextWrapping="Wrap"
-                Watermark="Password" />
+                Watermark="Password"
+                x:Name="LoginPasswordBox" />
             <Button
                 BorderBrush="Black"
                 BorderThickness="1"

Project.View/Login Page/LoginPage.axaml.cs

@@ -17,9 +17,12 @@ public partial class LoginPage : UserControl
         InitializeComponent();
         _controller = controller;
     }
+    //gives loginname and password over to the appcontroller to compare the logins
     private async void LoginButtonOnClick(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
     {
-        
+        string? loginName = LoginNameBox.Text ??  string.Empty;
+        string? loginPassword = LoginPasswordBox.Text ??  string.Empty;
+        AppController.CompareLogin(loginName, loginPassword);
     }
     private async void NewUserButtonOnClick(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
     {