refactor<*>: rewrite all codes...

src/Views/Widgets/Exceptions.xaml.cs

@@ -0,0 +1,24 @@
+using System.Collections.ObjectModel;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace SourceGit.Views.Widgets {
+
+    /// <summary>
+    ///     错误提示面板
+    /// </summary>
+    public partial class Exceptions : UserControl {
+        public ObservableCollection<string> Messages { get; set; }
+
+        public Exceptions() {
+            Messages = new ObservableCollection<string>();
+            Models.Exception.Handler = e => Dispatcher.Invoke(() => Messages.Add(e));
+            InitializeComponent();
+        }
+
+        private void Dismiss(object sender, RoutedEventArgs e) {
+            var data = (sender as Button).DataContext as string;
+            Messages.Remove(data);
+        }
+    }
+}