add resharper and hover effect for modules; change navigation bar

Server Dashboard/AttachedProperty/HyperlinkProperties.cs

@@ -6,7 +6,9 @@ using System.Windows;
 using System.Windows.Documents;
 
 namespace Server_Dashboard {
+
     public static class HyperlinkExtensions {
+
         public static bool GetIsExternal(DependencyObject obj) {
             return (bool)obj.GetValue(IsExternalProperty);
         }
@@ -14,23 +16,25 @@ namespace Server_Dashboard {
         public static void SetIsExternal(DependencyObject obj, bool value) {
             obj.SetValue(IsExternalProperty, value);
         }
+
         public static readonly DependencyProperty IsExternalProperty =
             DependencyProperty.RegisterAttached("IsExternal", typeof(bool), typeof(HyperlinkExtensions), new UIPropertyMetadata(false, OnIsExternalChanged));
 
         private static void OnIsExternalChanged(object sender, DependencyPropertyChangedEventArgs args) {
             var hyperlink = sender as Hyperlink;
 
-            if ((bool)args.NewValue)
-                hyperlink.RequestNavigate += Hyperlink_RequestNavigate;
-            else
+            if ((bool)args.NewValue) {
+                if (hyperlink != null)
+                    hyperlink.RequestNavigate += Hyperlink_RequestNavigate;
+            } else if (hyperlink != null)
                 hyperlink.RequestNavigate -= Hyperlink_RequestNavigate;
         }
 
         private static void Hyperlink_RequestNavigate(object sender, System.Windows.Navigation.RequestNavigateEventArgs e) {
             try {
                 Process.Start(new ProcessStartInfo(e.Uri.AbsoluteUri) { UseShellExecute = true });
-            } catch { }
+            } catch (Exception) { }
             e.Handled = true;
         }
     }
-}
+}