add Caching property to Group, to allow disabling caching for very often updated surface

1 files changed, 20 insertions, 2 deletions

diff --git a/src/GraphicObjects/Group.cs b/src/GraphicObjects/Group.cs
index 5107ccc5..a6dfd0c2 100644
--- a/src/GraphicObjects/Group.cs
+++ b/src/GraphicObjects/Group.cs
@@ -27,10 +27,14 @@ namespace Crow
 		internal int maxChildrenHeight = 0;
 
         bool _multiSelect = false;
+		bool _caching = false;
 		List<GraphicObject> children = new List<GraphicObject>();
 
         public GraphicObject activeWidget;
 
+
+
+
         public virtual List<GraphicObject> Children {
 			get { return children; }
 			set { children = value; }
@@ -39,9 +43,23 @@ namespace Crow
         public bool MultiSelect
         {
             get { return _multiSelect; }
-            set { _multiSelect = value; }
+            set { 
+				if (value == _multiSelect)
+					return;
+				_multiSelect = value; 
+				NotifyValueChanged ("MultiSelect", _multiSelect);
+			}
         }
-			
+		[XmlAttributeAttribute()][DefaultValue(true)]
+		public bool Caching {
+			get { return _caching; }
+			set {
+				if (value == _caching)
+					return;
+				_caching = value; 
+				NotifyValueChanged ("Caching", _multiSelect);
+			}
+		}			
 			
         public virtual T addChild<T>(T child)
         {