Initial Commit

PortfolioManager/ViewModels/DialogViewModelBase.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.ComponentModel;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Input;
+using System.Threading.Tasks;
+
+namespace PortfolioManager.ViewModels
+{
+    public interface ICloseableDialog
+    {
+        public Task Close();
+    }
+
+    public abstract class DialogViewModelBase : ModelBase, ICloseableDialog, IDisposable
+    {
+        public DialogViewModelBase(Window dialogWindow)
+        {
+            DialogWindow = dialogWindow;
+        }
+
+        public virtual async Task Close()
+        {
+            Dispose();
+            await Task.FromResult(true);
+        }
+
+        public void Dispose()
+        {
+            if (null == DialogWindow)
+            {
+                return;
+            }
+            DialogWindow.Hide();    // !!Important ARM64
+            DialogWindow.Close();
+            DialogWindow = null;
+        }
+
+        public bool IsSuccess { get; set; } = false;
+
+        protected Window DialogWindow { get; private set; }
+    }
+}