diff --git a/ChangeLog b/ChangeLog
index 966a50981..65051f53a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-08-19  Christian Hoff  <christian_hoff@gmx.net>
+
+	* generator/*.cs: Add the "partial" keyword to each generated class, 
+	struct and interface.
+
 2009-08-19  Christian Hoff  <christian_hoff@gmx.net>
 
 	* glib/MainContext.cs: Add API to create new MainContexts. Add a few
diff --git a/generator/ClassGen.cs b/generator/ClassGen.cs
index 700a27a1e..d36c77db3 100644
--- a/generator/ClassGen.cs
+++ b/generator/ClassGen.cs
@@ -73,7 +73,7 @@ namespace GtkSharp.Generation {
 			sw.WriteLine ("#region Autogenerated code");
 			if (IsDeprecated)
 				sw.WriteLine ("\t[Obsolete]");
-			sw.Write ("\t{0} class " + Name, IsInternal ? "internal" : "public");
+			sw.Write ("\t{0} partial class " + Name, IsInternal ? "internal" : "public");
 			sw.WriteLine (" {");
 			sw.WriteLine ();
 
diff --git a/generator/InterfaceGen.cs b/generator/InterfaceGen.cs
index c3f80f34a..759485a6e 100644
--- a/generator/InterfaceGen.cs
+++ b/generator/InterfaceGen.cs
@@ -230,7 +230,7 @@ namespace GtkSharp.Generation {
 			sw.WriteLine ("\tusing System.Runtime.InteropServices;");
 			sw.WriteLine ();
 			sw.WriteLine ("#region Autogenerated code");
-			sw.WriteLine ("\tpublic class " + Name + "Adapter : GLib.GInterfaceAdapter, " + QualifiedName + " {");
+			sw.WriteLine ("\tpublic partial class " + Name + "Adapter : GLib.GInterfaceAdapter, " + QualifiedName + " {");
 			sw.WriteLine ();
 
 			if (!IsConsumeOnly) {
@@ -277,7 +277,7 @@ namespace GtkSharp.Generation {
 			sw.WriteLine ();
 			sw.WriteLine ("\t[GLib.GInterface (typeof (" + Name + "Adapter))]");
 			string access = IsInternal ? "internal" : "public";
-			sw.WriteLine ("\t" + access + " interface " + Name + "Implementor : GLib.IWrapper {");
+			sw.WriteLine ("\t" + access + " partial interface " + Name + "Implementor : GLib.IWrapper {");
 			sw.WriteLine ();
 			Hashtable vm_table = new Hashtable ();
 			foreach (InterfaceVM vm in interface_vms) {
@@ -323,7 +323,7 @@ namespace GtkSharp.Generation {
 			sw.WriteLine ();
 			sw.WriteLine ("#region Autogenerated code");
 			string access = IsInternal ? "internal" : "public";
-			sw.WriteLine ("\t" + access + " interface " + Name + " : GLib.IWrapper {");
+			sw.WriteLine ("\t" + access + " partial interface " + Name + " : GLib.IWrapper {");
 			sw.WriteLine ();
 			
 			foreach (Signal sig in sigs.Values) {
diff --git a/generator/ObjectGen.cs b/generator/ObjectGen.cs
index e70b94bb5..0bd73fa53 100644
--- a/generator/ObjectGen.cs
+++ b/generator/ObjectGen.cs
@@ -150,7 +150,7 @@ namespace GtkSharp.Generation {
 				sw.WriteLine ("\t[Obsolete]");
 			foreach (string attr in custom_attrs)
 				sw.WriteLine ("\t" + attr);
-			sw.Write ("\t{0} {1}class " + Name, IsInternal ? "internal" : "public", IsAbstract ? "abstract " : "");
+			sw.Write ("\t{0} partial {1}class " + Name, IsInternal ? "internal" : "public", IsAbstract ? "abstract " : "");
 			string cs_parent = table.GetCSType(Elem.GetAttribute("parent"));
 			if (cs_parent != "") {
 				di.objects.Add (CName, QualifiedName);
diff --git a/generator/OpaqueGen.cs b/generator/OpaqueGen.cs
index 55735415c..a46008822 100644
--- a/generator/OpaqueGen.cs
+++ b/generator/OpaqueGen.cs
@@ -63,7 +63,7 @@ namespace GtkSharp.Generation {
 
 			if (IsDeprecated)
 				sw.WriteLine ("\t[Obsolete]");
-			sw.Write ("\t{0}{1}class " + Name, IsInternal ? "internal " : "public ", IsAbstract ? "abstract " : String.Empty);
+			sw.Write ("\t{0} partial {1}class " + Name, IsInternal ? "internal" : "public", IsAbstract ? "abstract " : String.Empty);
 			string cs_parent = table.GetCSType(Elem.GetAttribute("parent"));
 			if (cs_parent != "")
 				sw.Write (" : " + cs_parent);
diff --git a/generator/StructBase.cs b/generator/StructBase.cs
index 7e1b87aa0..6c7cd0454 100644
--- a/generator/StructBase.cs
+++ b/generator/StructBase.cs
@@ -160,7 +160,7 @@ namespace GtkSharp.Generation {
 				sw.WriteLine ("\t[Obsolete]");
 			sw.WriteLine ("\t[StructLayout(LayoutKind.Sequential)]");
 			string access = IsInternal ? "internal" : "public";
-			sw.WriteLine ("\t" + access + " struct " + Name + " {");
+			sw.WriteLine ("\t" + access + " partial struct " + Name + " {");
 			sw.WriteLine ();
 
 			need_read_native = false;