diff --git a/MVPLearning.sln b/MVPLearning.sln
new file mode 100644
index 0000000..8143007
--- /dev/null
+++ b/MVPLearning.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.9.34714.143
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MVPLearning", "MVPLearning\MVPLearning.csproj", "{90225EB5-197B-475B-9AB4-8E8D642EF4AE}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Any CPU = Debug|Any CPU
+ Release|Any CPU = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {90225EB5-197B-475B-9AB4-8E8D642EF4AE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {90225EB5-197B-475B-9AB4-8E8D642EF4AE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {90225EB5-197B-475B-9AB4-8E8D642EF4AE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {90225EB5-197B-475B-9AB4-8E8D642EF4AE}.Release|Any CPU.Build.0 = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {7FEEDE7A-D909-42A2-A061-B95C22E81025}
+ EndGlobalSection
+EndGlobal
diff --git a/MVPLearning/BaseLibrary/BaseDateTimePicker.cs b/MVPLearning/BaseLibrary/BaseDateTimePicker.cs
new file mode 100644
index 0000000..f222c0f
--- /dev/null
+++ b/MVPLearning/BaseLibrary/BaseDateTimePicker.cs
@@ -0,0 +1,72 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MVPLearning.BaseLibrary
+{
+ // adapted from https://slapouttech.blogspot.com/2019/01/my-nullable-datetime-picker.html
+ public class BaseDateTimePicker : DateTimePicker
+ {
+ public DateTime? BoundValue { get; set; }
+ public BaseDateTimePicker() : base()
+ {
+ ShowCheckBox = true;
+ Format = DateTimePickerFormat.Custom;
+ }
+ public void Bind(object datasource, string dataproperty)
+ {
+ var oldBinding = this.DataBindings[nameof(BoundValue)];
+ if (oldBinding != null) { DataBindings.Remove(oldBinding); }
+
+ var newBinding = new Binding(nameof(BoundValue), datasource, dataproperty, true);
+ newBinding.Format += FormatMyDate;
+ newBinding.Parse += ParseMyDate;
+ DataBindings.Add(newBinding);
+ }
+
+ private void FormatMyDate(object? sender, ConvertEventArgs e)
+ {
+ if (e.Value == null)
+ {
+ //Value = Value;
+ Format = DateTimePickerFormat.Custom;
+ CustomFormat = " ";
+ Checked = false;
+ }
+ else
+ {
+ Value = (DateTime)e.Value;
+ Format = DateTimePickerFormat.Custom;
+ CustomFormat = "MM/dd/yyyy";
+ Checked = true;
+ }
+ }
+ private void ParseMyDate(object? sender, ConvertEventArgs e)
+ {
+ e.Value = Checked ? Value : null;
+ }
+ protected override void OnValueChanged(EventArgs eventargs)
+ {
+ System.Diagnostics.Debug.WriteLine("OnValueChanged");
+ base.OnValueChanged(eventargs);
+ BoundValue = Value;
+ Format = DateTimePickerFormat.Custom;
+ CustomFormat = Checked ? "MM/dd/yyyy" : " ";
+ }
+ protected override void OnValidated(EventArgs e)
+ {
+ base.OnValidated(e);
+ }
+ protected override void OnValidating(CancelEventArgs e)
+ {
+ base.OnValidating(e);
+ System.Diagnostics.Debug.WriteLine("OnValidating");
+ System.Diagnostics.Debug.WriteLine($"Value: {Value}");
+ System.Diagnostics.Debug.WriteLine($"BoundValue: {BoundValue}");
+ }
+
+ }
+}
diff --git a/MVPLearning/BaseLibrary/BaseForm.cs b/MVPLearning/BaseLibrary/BaseForm.cs
new file mode 100644
index 0000000..ad8e201
--- /dev/null
+++ b/MVPLearning/BaseLibrary/BaseForm.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MVPLearning.BaseLibrary
+{
+ public class BaseForm : Form
+ {
+ }
+}
diff --git a/MVPLearning/BaseLibrary/BaseTextBox.cs b/MVPLearning/BaseLibrary/BaseTextBox.cs
new file mode 100644
index 0000000..5a7de1f
--- /dev/null
+++ b/MVPLearning/BaseLibrary/BaseTextBox.cs
@@ -0,0 +1,35 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MVPLearning.BaseLibrary
+{
+ public class BaseTextBox : TextBox
+ {
+ public BaseTextBox() : base()
+ {
+ BorderStyle = BorderStyle.FixedSingle;
+ }
+ public void Bind(object datasource, string dataproperty)
+ {
+ var oldBinding = DataBindings[nameof(Text)];
+ if (oldBinding != null) { DataBindings.Remove(oldBinding); }
+
+ var newBinding = new Binding(nameof(Text), datasource, dataproperty, false);
+ DataBindings.Add(newBinding);
+ }
+
+ protected override void OnGotFocus(EventArgs e)
+ {
+ base.OnGotFocus(e);
+ BackColor = Color.FromArgb(183, 219, 255);
+ }
+ protected override void OnLostFocus(EventArgs e)
+ {
+ base.OnLostFocus(e);
+ BackColor = Color.White;
+ }
+ }
+}
diff --git a/MVPLearning/MVPLearning.csproj b/MVPLearning/MVPLearning.csproj
new file mode 100644
index 0000000..663fdb8
--- /dev/null
+++ b/MVPLearning/MVPLearning.csproj
@@ -0,0 +1,11 @@
+
+
+
+ WinExe
+ net8.0-windows
+ enable
+ true
+ enable
+
+
+
\ No newline at end of file
diff --git a/MVPLearning/MainView.Designer.cs b/MVPLearning/MainView.Designer.cs
new file mode 100644
index 0000000..e0f0636
--- /dev/null
+++ b/MVPLearning/MainView.Designer.cs
@@ -0,0 +1,109 @@
+namespace MVPLearning
+{
+ partial class MainView
+ {
+ ///
+ /// Required designer variable.
+ ///
+ private System.ComponentModel.IContainer components = null;
+
+ ///
+ /// Clean up any resources being used.
+ ///
+ /// true if managed resources should be disposed; otherwise, false.
+ protected override void Dispose(bool disposing)
+ {
+ if (disposing && (components != null))
+ {
+ components.Dispose();
+ }
+ base.Dispose(disposing);
+ }
+
+ #region Windows Form Designer generated code
+
+ ///
+ /// Required method for Designer support - do not modify
+ /// the contents of this method with the code editor.
+ ///
+ private void InitializeComponent()
+ {
+ menuStrip1 = new MenuStrip();
+ fileToolStripMenuItem = new ToolStripMenuItem();
+ exitToolStripMenuItem = new ToolStripMenuItem();
+ recordKeepingToolStripMenuItem = new ToolStripMenuItem();
+ sermonFilerToolStripMenuItem = new ToolStripMenuItem();
+ maintainSermonFilerToolStripMenuItem = new ToolStripMenuItem();
+ menuStrip1.SuspendLayout();
+ SuspendLayout();
+ //
+ // menuStrip1
+ //
+ menuStrip1.Items.AddRange(new ToolStripItem[] { fileToolStripMenuItem, recordKeepingToolStripMenuItem });
+ menuStrip1.Location = new Point(0, 0);
+ menuStrip1.Name = "menuStrip1";
+ menuStrip1.Size = new Size(800, 24);
+ menuStrip1.TabIndex = 1;
+ menuStrip1.Text = "menuStrip1";
+ //
+ // fileToolStripMenuItem
+ //
+ fileToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { exitToolStripMenuItem });
+ fileToolStripMenuItem.Name = "fileToolStripMenuItem";
+ fileToolStripMenuItem.Size = new Size(37, 20);
+ fileToolStripMenuItem.Text = "&File";
+ //
+ // exitToolStripMenuItem
+ //
+ exitToolStripMenuItem.Name = "exitToolStripMenuItem";
+ exitToolStripMenuItem.Size = new Size(180, 22);
+ exitToolStripMenuItem.Text = "E&xit";
+ exitToolStripMenuItem.Click += ExitToolStripMenuItem_Click;
+ //
+ // recordKeepingToolStripMenuItem
+ //
+ recordKeepingToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { sermonFilerToolStripMenuItem });
+ recordKeepingToolStripMenuItem.Name = "recordKeepingToolStripMenuItem";
+ recordKeepingToolStripMenuItem.Size = new Size(102, 20);
+ recordKeepingToolStripMenuItem.Text = "&Record Keeping";
+ //
+ // sermonFilerToolStripMenuItem
+ //
+ sermonFilerToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { maintainSermonFilerToolStripMenuItem });
+ sermonFilerToolStripMenuItem.Name = "sermonFilerToolStripMenuItem";
+ sermonFilerToolStripMenuItem.Size = new Size(180, 22);
+ sermonFilerToolStripMenuItem.Text = "Sermon Filer";
+ //
+ // maintainSermonFilerToolStripMenuItem
+ //
+ maintainSermonFilerToolStripMenuItem.Name = "maintainSermonFilerToolStripMenuItem";
+ maintainSermonFilerToolStripMenuItem.Size = new Size(190, 22);
+ maintainSermonFilerToolStripMenuItem.Text = "Maintain Sermon Filer";
+ maintainSermonFilerToolStripMenuItem.Click += MaintainSermonFilerToolStripMenuItem_Click;
+ //
+ // MainView
+ //
+ AutoScaleDimensions = new SizeF(7F, 15F);
+ AutoScaleMode = AutoScaleMode.Font;
+ ClientSize = new Size(800, 450);
+ Controls.Add(menuStrip1);
+ IsMdiContainer = true;
+ MainMenuStrip = menuStrip1;
+ Name = "MainView";
+ Text = "MDI Window";
+ menuStrip1.ResumeLayout(false);
+ menuStrip1.PerformLayout();
+ ResumeLayout(false);
+ PerformLayout();
+ }
+
+ #endregion
+
+ private MenuStrip menuStrip1;
+ private ToolStripMenuItem fileToolStripMenuItem;
+ private ToolStripMenuItem exitToolStripMenuItem;
+ private ToolStripMenuItem recordKeepingToolStripMenuItem;
+ private ToolStripMenuItem sermonFilerToolStripMenuItem;
+ private ToolStripMenuItem maintainSermonFilerToolStripMenuItem;
+ }
+}
diff --git a/MVPLearning/MainView.cs b/MVPLearning/MainView.cs
new file mode 100644
index 0000000..cb83e50
--- /dev/null
+++ b/MVPLearning/MainView.cs
@@ -0,0 +1,20 @@
+namespace MVPLearning
+{
+ public partial class MainView : Form
+ {
+ public MainView()
+ {
+ InitializeComponent();
+ }
+
+ private void MaintainSermonFilerToolStripMenuItem_Click(object sender, EventArgs e)
+ {
+
+ }
+
+ private void ExitToolStripMenuItem_Click(object sender, EventArgs e)
+ {
+ Application.Exit();
+ }
+ }
+}
diff --git a/MVPLearning/MainView.resx b/MVPLearning/MainView.resx
new file mode 100644
index 0000000..a0623c8
--- /dev/null
+++ b/MVPLearning/MainView.resx
@@ -0,0 +1,123 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ text/microsoft-resx
+
+
+ 2.0
+
+
+ System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
+
+
+ System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
+
+
+ 17, 17
+
+
\ No newline at end of file
diff --git a/MVPLearning/Program.cs b/MVPLearning/Program.cs
new file mode 100644
index 0000000..1deb5e9
--- /dev/null
+++ b/MVPLearning/Program.cs
@@ -0,0 +1,17 @@
+namespace MVPLearning
+{
+ internal static class Program
+ {
+ ///
+ /// The main entry point for the application.
+ ///
+ [STAThread]
+ static void Main()
+ {
+ // To customize application configuration such as set high DPI settings or default font,
+ // see https://aka.ms/applicationconfiguration.
+ ApplicationConfiguration.Initialize();
+ Application.Run(new MainView());
+ }
+ }
+}
\ No newline at end of file
diff --git a/MVPLearning/RecordKeeping/SermonFiler/IMaintainSermonFilerView.cs b/MVPLearning/RecordKeeping/SermonFiler/IMaintainSermonFilerView.cs
new file mode 100644
index 0000000..9f620d3
--- /dev/null
+++ b/MVPLearning/RecordKeeping/SermonFiler/IMaintainSermonFilerView.cs
@@ -0,0 +1,18 @@
+namespace MVPLearning.RecordKeeping.SermonFiler
+{
+ internal interface IMaintainSermonFilerView
+ {
+ void LoadData(MaintainSermonFilerModel model);
+ event EventHandler? AddButtonClicked;
+ event EventHandler? DeleteButtonClicked;
+ event EventHandler? LocateButtonClicked;
+ event EventHandler? NextButtonClicked;
+ event EventHandler? PreviousButtonClicked;
+ event EventHandler? CloseButtonClicked;
+ event EventHandler? BrowseButtonClicked;
+ event EventHandler? LaunchButtonClicked;
+ event EventHandler? SaveButtonClicked;
+ event EventHandler? CancelButtonClicked;
+
+ }
+}
\ No newline at end of file
diff --git a/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerModel.cs b/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerModel.cs
new file mode 100644
index 0000000..953826b
--- /dev/null
+++ b/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerModel.cs
@@ -0,0 +1,74 @@
+using MVPLearning.Structure;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MVPLearning.RecordKeeping.SermonFiler
+{
+ internal class MaintainSermonFilerModel : ObservableObject
+ {
+ public int Seid { get; set; }
+ public string Title { get => _title; set => SetProperty(ref _title, value); }
+ private string _title = string.Empty;
+ public string Scripture { get => _scripture; set => SetProperty(ref _scripture, value); }
+ private string _scripture = string.Empty;
+ public DateTime? When { get => _when; set => SetProperty(ref _when, value); }
+ private DateTime? _when;
+ public string Subject { get => _subject; set => SetProperty(ref _subject, value); }
+ private string _subject = string.Empty;
+ public string Minister { get => _minister; set => SetProperty(ref _minister, value); }
+ private string _minister = string.Empty;
+ public string Where { get => _where; set => SetProperty(ref _where, value); }
+ private string _where = string.Empty;
+ public string Ref_No { get => _ref_No; set => SetProperty(ref _where, value); }
+#pragma warning disable IDE0044 // Add readonly modifier
+ private string _ref_No = string.Empty;
+#pragma warning restore IDE0044 // Add readonly modifier
+ public string Notes { get => _notes; set => SetProperty(ref _notes, value); }
+ private string _notes = string.Empty;
+ public string Filename { get => _filename; set => SetProperty(ref _filename, value); }
+ private string _filename = string.Empty;
+ public string Web { get => _web; set => SetProperty(ref _web, value); }
+ private string _web = string.Empty;
+
+ public override bool Equals(object? obj)
+ {
+ return Equals(obj as MaintainSermonFilerModel);
+ }
+
+ public bool Equals(MaintainSermonFilerModel? other)
+ {
+ return other is not null &&
+ Seid == other.Seid &&
+ Title == other.Title &&
+ Scripture == other.Scripture &&
+ When == other.When &&
+ Subject == other.Subject &&
+ Minister == other.Minister &&
+ Where == other.Where &&
+ Ref_No == other.Ref_No &&
+ Notes == other.Notes &&
+ Filename == other.Filename &&
+ Web == other.Web;
+ }
+
+ public override int GetHashCode()
+ {
+ HashCode hash = new();
+ hash.Add(Seid);
+ hash.Add(Title);
+ hash.Add(Scripture);
+ hash.Add(When);
+ hash.Add(Subject);
+ hash.Add(Minister);
+ hash.Add(Where);
+ hash.Add(Ref_No);
+ hash.Add(Notes);
+ hash.Add(Filename);
+ hash.Add(Web);
+ return hash.ToHashCode();
+ }
+ }
+}
diff --git a/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerPresenter.cs b/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerPresenter.cs
new file mode 100644
index 0000000..0c5190d
--- /dev/null
+++ b/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerPresenter.cs
@@ -0,0 +1,70 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MVPLearning.RecordKeeping.SermonFiler
+{
+ internal class MaintainSermonFilerPresenter
+ {
+ private readonly IMaintainSermonFilerView _view;
+ public MaintainSermonFilerPresenter(IMaintainSermonFilerView view)
+ {
+ _view = view;
+
+ _view.AddButtonClicked += AddButtonClicked;
+ _view.DeleteButtonClicked += DeleteButtonClicked;
+ _view.LocateButtonClicked += LocateButtonClicked;
+ _view.NextButtonClicked += NextButtonClicked;
+ _view.PreviousButtonClicked += PreviousButtonClicked;
+ _view.CloseButtonClicked += CloseButtonClicked;
+ _view.LaunchButtonClicked += LaunchButtonClicked;
+ _view.BrowseButtonClicked += BrowseButtonClicked;
+ _view.LoadData(new() { Title = "Loaded model" });
+ if (_view is Form form) { form.Show(); }
+ }
+
+ private void NextButtonClicked(object? sender, int e)
+ {
+ MaintainSermonFilerModel model = new()
+ {
+ Title = "Next record ",
+ When = new DateTime(2024, 3, 1),
+ Filename = "nextfile"
+ };
+ _view.LoadData(model);
+ }
+ private void BrowseButtonClicked(object? sender, EventArgs e)
+ {
+ }
+
+ private void LaunchButtonClicked(object? sender, string e)
+ {
+ }
+
+ private void CloseButtonClicked(object? sender, EventArgs e)
+ {
+ if (_view is Form form) { form.Close(); }
+ }
+
+ private void PreviousButtonClicked(object? sender, int e)
+ {
+ }
+
+
+
+ private void LocateButtonClicked(object? sender, int e)
+ {
+ }
+
+ private void DeleteButtonClicked(object? sender, int e)
+ {
+ }
+
+ internal void AddButtonClicked(object? sender, EventArgs e)
+ {
+ _view.LoadData(new() { Title = "I'm a new record", When = null });
+ }
+ }
+}
diff --git a/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerView.Designer.cs b/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerView.Designer.cs
new file mode 100644
index 0000000..317d38d
--- /dev/null
+++ b/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerView.Designer.cs
@@ -0,0 +1,39 @@
+namespace MVPLearning.RecordKeeping.SermonFiler
+{
+ partial class MaintainSermonFilerView
+ {
+ ///
+ /// Required designer variable.
+ ///
+ private System.ComponentModel.IContainer components = null;
+
+ ///
+ /// Clean up any resources being used.
+ ///
+ /// true if managed resources should be disposed; otherwise, false.
+ protected override void Dispose(bool disposing)
+ {
+ if (disposing && (components != null))
+ {
+ components.Dispose();
+ }
+ base.Dispose(disposing);
+ }
+
+ #region Windows Form Designer generated code
+
+ ///
+ /// Required method for Designer support - do not modify
+ /// the contents of this method with the code editor.
+ ///
+ private void InitializeComponent()
+ {
+ this.components = new System.ComponentModel.Container();
+ this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+ this.ClientSize = new System.Drawing.Size(800, 450);
+ this.Text = "MaintainSermonFilerView";
+ }
+
+ #endregion
+ }
+}
\ No newline at end of file
diff --git a/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerView.cs b/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerView.cs
new file mode 100644
index 0000000..44db087
--- /dev/null
+++ b/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerView.cs
@@ -0,0 +1,21 @@
+using MVPLearning.BaseLibrary;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace MVPLearning.RecordKeeping.SermonFiler
+{
+ public partial class MaintainSermonFilerView : BaseForm
+ {
+ public MaintainSermonFilerView()
+ {
+ InitializeComponent();
+ }
+ }
+}
diff --git a/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerView.resx b/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerView.resx
new file mode 100644
index 0000000..1af7de1
--- /dev/null
+++ b/MVPLearning/RecordKeeping/SermonFiler/MaintainSermonFilerView.resx
@@ -0,0 +1,120 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ text/microsoft-resx
+
+
+ 2.0
+
+
+ System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
+
+
+ System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
+
+
\ No newline at end of file
diff --git a/MVPLearning/Structure/ObservableObject.cs b/MVPLearning/Structure/ObservableObject.cs
new file mode 100644
index 0000000..ac6e01d
--- /dev/null
+++ b/MVPLearning/Structure/ObservableObject.cs
@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MVPLearning.Structure
+{
+ internal class ObservableObject : INotifyPropertyChanged
+ {
+ public event PropertyChangedEventHandler? PropertyChanged;
+ protected virtual void RaisePropertyChanged([CallerMemberName] string propertyName = "")
+ {
+ PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+ }
+
+ protected virtual bool SetProperty(ref T storage, T value, [CallerMemberName] string propertyName = "")
+ {
+ if (EqualityComparer.Default.Equals(storage, value))
+ {
+ return false;
+ }
+ storage = value;
+ RaisePropertyChanged(propertyName);
+ return true;
+ }
+ }
+}