Focus on new/opened tab

Author: napen123

MathInterpreter/MainWindow.xaml.cs

@@ -26,6 +26,7 @@ private void MainWindow_OnClosed(object sender, EventArgs e)
         private void NewFile_OnClick(object sender, RoutedEventArgs e)
         {
             TabControl.Items.Add(new MathTab());
+            SelectNewTab();
         }
 
         private void OpenFile_OnClick(object sender, RoutedEventArgs e)
@@ -36,6 +37,7 @@ private void OpenFile_OnClick(object sender, RoutedEventArgs e)
                 return;
 
             TabControl.Items.Add(tab);
+            SelectNewTab();
         }
 
         private void SaveFile_OnClick(object sender, RoutedEventArgs e)
@@ -77,5 +79,10 @@ private void Settings_OnClick(object sender, RoutedEventArgs e)
         {
             SettingsWindow.Open();
         }
+
+        private void SelectNewTab()
+        {
+            TabControl.SelectedIndex = TabControl.Items.Count - 1;
+        }
     }
 }