fix windows delete event

Author: daelsepara

SVMClassifier/gtk-gui/MainWindow.cs

@@ -310,7 +310,7 @@ protected virtual void Build()
 		this.MainNotebook.WidthRequest = 740;
 		this.MainNotebook.HeightRequest = 510;
 		this.MainNotebook.Name = "MainNotebook";
-		this.MainNotebook.CurrentPage = 2;
+		this.MainNotebook.CurrentPage = 0;
 		// Container child MainNotebook.Gtk.Notebook+NotebookChild
 		this.LayoutPageData = new global::Gtk.Fixed();
 		this.LayoutPageData.Name = "LayoutPageData";
@@ -1296,6 +1296,7 @@ SVM learning algorithms attempt to enhance  the distinction between categories b
 			this.Child.ShowAll();
 		}
 		this.Show();
+		this.DeleteEvent += new global::Gtk.DeleteEventHandler(this.OnDeleteEvent);
 		this.AboutButton.Activated += new global::System.EventHandler(this.OnAboutButtonClicked);
 		this.QuitButton.Activated += new global::System.EventHandler(this.OnQuitButtonClicked);
 		this.RunButton.Activated += new global::System.EventHandler(this.OnRunButtonClicked);

SVMClassifier/gtk-gui/gui.stetic

@@ -109,6 +109,7 @@
     <property name="Resizable">False</property>
     <property name="DefaultWidth">800</property>
     <property name="DefaultHeight">600</property>
+    <signal name="DeleteEvent" handler="OnDeleteEvent" />
     <child>
       <widget class="Gtk.Fixed" id="MainLayout">
         <property name="MemberName" />

SVMClassifier/packages.config

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Newtonsoft.Json" version="11.0.2" targetFramework="net47" />
-</packages>
+</packages>