add ProgressButton

HandyControlDemo/UserControl/Controls/ProgressButtonDemoCtl.xaml.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Windows;
+using System.Windows.Threading;
+
+namespace HandyControlDemo.UserControl
+{
+    public partial class ProgressButtonDemoCtl
+    {
+        public static readonly DependencyProperty ProgressProperty = DependencyProperty.Register(
+            "Progress", typeof(int), typeof(ProgressButtonDemoCtl), new PropertyMetadata(default(int)));
+
+        public int Progress
+        {
+            get => (int) GetValue(ProgressProperty);
+            set => SetValue(ProgressProperty, value);
+        }
+
+        public static readonly DependencyProperty IsUploadingProperty = DependencyProperty.Register(
+            "IsUploading", typeof(bool), typeof(ProgressButtonDemoCtl), new PropertyMetadata(default(bool)));
+
+        public bool IsUploading
+        {
+            get => (bool) GetValue(IsUploadingProperty);
+            set => SetValue(IsUploadingProperty, value);
+        }
+
+        private readonly DispatcherTimer _timer;
+
+        public ProgressButtonDemoCtl()
+        {
+            InitializeComponent();
+
+            DataContext = this;
+
+            _timer = new DispatcherTimer
+            {
+                Interval = TimeSpan.FromMilliseconds(200)
+            };
+            _timer.Tick += Timer_Tick;
+        }
+
+        private void Timer_Tick(object sender, EventArgs e)
+        {
+            Progress++;
+            if (Progress == 100)
+            {
+                Progress = 0;
+                _timer.Stop();
+                IsUploading = false;
+            }
+        }
+
+        private void ButtonProgress_OnClick(object sender, RoutedEventArgs e)
+        {
+            if (_timer.IsEnabled)
+            {
+                _timer.Stop();
+            }
+            else
+            {
+                _timer.Start();
+            }
+        }
+    }
+}