added first part of persistence to locally save a new login and got 2 or 3 buttons working - no errors in this build

Project.Model/CreateLogin.cs

@@ -0,0 +1,15 @@
+namespace Project.Model;
+
+public class CreateLogin
+{
+    public string newLoginname { get; set; }
+    public string newMasterpassword { get; set; }
+    public string newEmail { get; set; }
+
+    public CreateLogin(string username, string password, string email)
+    {
+        newLoginname = username;
+        newMasterpassword = password;
+        newEmail = email;
+    }
+}

Project.Model/Entry.cs

@@ -1,6 +1,6 @@
 namespace Project.Model;
 
-public class entry
+public class Entry
 {
     public string? entryname;
     public string? username;

Project.Model/LoginCredentials.cs

@@ -0,0 +1,9 @@
+using System.Reflection.Metadata;
+
+namespace Project.Model;
+
+public class LoginCredentials
+{
+    public string? loginname { get; set; }
+    public string? masterpassword { get; set; }
+}

Project.Model/logincredentials.cs

@@ -1,7 +0,0 @@
-namespace Project.Model;
-
-public class loginCredentials
-{
-    public string? loginname;
-    public string? masterpassword;
-}

Project.Persistence/Class1.cs

@@ -1,6 +0,0 @@
-namespace Project.Persistence;
-
-public class Class1
-{
-
-}

Project.Persistence/UserStorage.cs

@@ -0,0 +1,12 @@
+using Project.Model;
+namespace Project.Persistence;
+
+public static class UserStorage
+{
+    private static readonly string FilePath = "C:/Users/lowns/desktop/users.txt";
+    public static void SaveUser(CreateLogin user)
+    {
+        var line = $"{user.newLoginname}:{user.newMasterpassword}:{user.newEmail}";
+        File.AppendAllLines(FilePath, new[] { line });
+    }
+}

Project.View/Login Page/LoginPage.axaml

@@ -1,20 +1,46 @@
 <UserControl
-        xmlns="https://github.com/avaloniaui"
     x:Class="Project.View.LoginPage"
+    xmlns="https://github.com/avaloniaui"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
     <Grid Background="SandyBrown">
-        <StackPanel VerticalAlignment="Center" HorizontalAlignment="Center">
+        <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center">
-            <Image Source="avares://Project.View/Images/keywi_logo_2.png" Height="400" Width="400"/>
+            <Image
+                Height="400"
+                Source="avares://Project.View/Images/keywi_logo_2.png"
+                Width="400" />
         </StackPanel>
-        <StackPanel Orientation="Vertical" HorizontalAlignment="Center" VerticalAlignment="Center">
+        <StackPanel
+            HorizontalAlignment="Center"
+            Orientation="Vertical"
+            VerticalAlignment="Center">
             <TextBlock>Your Login Name:</TextBlock>
-            <TextBox Watermark="Login-Name" TextWrapping="Wrap"/>
+            <TextBox TextWrapping="Wrap" Watermark="Login-Name" />
 
             <TextBlock>Password:</TextBlock>
 
 
-            <TextBox Watermark="Password" TextWrapping="Wrap" PasswordChar="*"/>
+            <TextBox
-            <Button Name="ConfirmButton" BorderBrush="Black" BorderThickness="1" HorizontalAlignment="Center" Margin="20"> LOGIN </Button>
+                PasswordChar="*"
+                TextWrapping="Wrap"
+                Watermark="Password" />
+            <Button
+                BorderBrush="Black"
+                BorderThickness="1"
+                Click="LoginButtonOnClick"
+                HorizontalAlignment="Center"
+                Margin="20"
+                Name="ConfirmButton">
+                LOGIN
+            </Button>
+            <Button
+                BorderBrush="Black"
+                BorderThickness="1"
+                Click="NewUserButtonOnClick"
+                HorizontalAlignment="Center"
+                Margin="20"
+                Name="NewUserButton">
+                Create New User
+            </Button>
         </StackPanel>
     </Grid>
 

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

@@ -17,4 +17,13 @@ public partial class LoginPage : UserControl
         InitializeComponent();
         _controller = controller;
     }
+    private async void LoginButtonOnClick(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
+    {
+        
+    }
+    private async void NewUserButtonOnClick(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
+    {
+        var newLoginWindow = new NewLogin();
+        newLoginWindow.Show();
+    }
 }

Project.View/MainWindow.axaml.cs

@@ -11,6 +11,6 @@ public partial class MainWindow : Window
     {
         InitializeComponent();
         _controller = new();
-        MainGrid.Children.Add(new MenuView());
+        MainGrid.Children.Add(new LoginPage());
     }
 }

Project.View/MenuView/MenuView.axaml

@@ -48,6 +48,11 @@
                         HorizontalAlignment="Left"
                         Margin="23"
                         Text="Name:" />
+                    <TextBlock
+                        FontSize="20"
+                        HorizontalAlignment="Left"
+                        Margin="23"
+                        Text="Login-Name:" />
                     <TextBlock
                         FontSize="20"
                         HorizontalAlignment="Left"
@@ -71,6 +76,11 @@
                         Margin="20"
                         Text="THE NAME OF YOUR SAVED LOGIN"
                         TextWrapping="Wrap" />
+                    <TextBox
+                        Height="30"
+                        Margin="20"
+                        Text="YOUR LOGIN NAME ON THIS PAGE"
+                        TextWrapping="Wrap" />
                     <TextBox
                         Height="30"
                         Margin="20"

Project.View/MenuView/MenuView.axaml.cs

@@ -20,9 +20,10 @@ public partial class MenuView : UserControl
     }
     
 
-    private void NewEntryButton_OnClick(object? sender, RoutedEventArgs e)
+    private async void NewEntryButton_OnClick(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
     {
-        var newEntry = new NewEntry(_controller);
+        var newEntryWindow = new NewEntry();
-        NewEntry.Show(newEntry);
+        newEntryWindow.Show();
     }
+
 }

Project.View/NewEntry/NewEntry.axaml

@@ -1,4 +1,6 @@
 <UserControl
+    Height="500"
+    Width="350"
     x:Class="Project.View.NewEntry"
     xmlns="https://github.com/avaloniaui"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

Project.View/NewEntry/NewEntry.axaml.cs

@@ -5,7 +5,7 @@ using Project.Controller;
 
 namespace Project.View;
 
-public partial class NewEntry : UserControl
+public partial class NewEntry : Window
 {
     readonly AppController? _controller;
     public NewEntry()
@@ -18,4 +18,5 @@ public partial class NewEntry : UserControl
         InitializeComponent();
         _controller = controller;
     }
+
 }

Project.View/NewLogin/NewLogin.axaml

@@ -0,0 +1,57 @@
+<UserControl
+    Height="500"
+    Width="350"
+    x:Class="Project.View.NewLogin"
+    xmlns="https://github.com/avaloniaui"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+    <Grid>
+
+        <Border Background="SaddleBrown">
+
+            <StackPanel Orientation="Vertical">
+                <TextBlock
+                    FontSize="20"
+                    HorizontalAlignment="Left"
+                    Text="Username:" />
+                <TextBox
+                    TextWrapping="Wrap"
+                    Watermark="Username"
+                    x:Name="NewLoginUsernameBox" />
+                <TextBlock
+                    FontSize="20"
+                    HorizontalAlignment="Left"
+                    Margin="23"
+                    Text="Password:" />
+                <TextBox
+                    PasswordChar="*"
+                    TextWrapping="Wrap"
+                    Watermark="Password:"
+                    x:Name="NewLoginPasswordBox" />
+                <TextBlock
+                    FontSize="20"
+                    HorizontalAlignment="Left"
+                    Margin="23"
+                    Text="Email:" />
+                <TextBox
+                    TextWrapping="Wrap"
+                    Watermark="Email:"
+                    x:Name="NewLoginEmailBox" />
+                <StackPanel Orientation="Horizontal">
+                    <Button
+                        BorderBrush="Black"
+                        BorderThickness="1"
+                        Click="NewLoginSaveOnClick"
+                        Content="Save" />
+                    <Button
+                        BorderBrush="Black"
+                        BorderThickness="1"
+                        Click="NewLoginCancelOnClick"
+                        Content="Cancel" />
+                </StackPanel>
+            </StackPanel>
+        </Border>
+
+    </Grid>
+
+
+</UserControl>

Project.View/NewLogin/NewLogin.axaml.cs

@@ -0,0 +1,44 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Media;
+using Project.Controller;
+using Project.Model;
+using Project.Persistence;
+
+namespace Project.View;
+
+public partial class NewLogin : Window
+{
+    readonly AppController? _controller;
+    public NewLogin()
+    {
+        InitializeComponent();
+    }
+
+    public NewLogin(AppController controller)
+    {
+        InitializeComponent();
+        _controller = controller;
+    }
+
+    private void NewLoginSaveOnClick(object? sender, RoutedEventArgs e)
+    {
+        string username = NewLoginUsernameBox.Text?.Trim();
+        string password = NewLoginPasswordBox.Text?.Trim();
+        string email = NewLoginEmailBox.Text?.Trim();
+
+        var user = new CreateLogin(username, password, email);
+        UserStorage.SaveUser(user);
+        
+        
+        NewLoginUsernameBox.Text = "";
+        NewLoginPasswordBox.Text = "";
+        NewLoginEmailBox.Text = "";
+
+
+    }
+    private void NewLoginCancelOnClick(object? sender, RoutedEventArgs e)
+    {
+        
+    }
+}

Project.View/Project.View.csproj

@@ -25,4 +25,19 @@
     <ProjectReference Include="..\Project.Model\Project.Model.csproj" />
     <AvaloniaResource Include="Images\**" />
   </ItemGroup>
+
+  <ItemGroup>
+    <Compile Update="NewLogin\NewLogin.axaml.cs">
+      <DependentUpon>NewLogin.axaml</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="NewLogin\NewLogin.axaml.cs">
+      <DependentUpon>NewEntry.axaml</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <AdditionalFiles Include="NewLogin\NewLogin.axaml" />
+  </ItemGroup>
 </Project>