Add support for recursively expanding tree nodes to SharpTreeView.

ILSpy/TreeNodes/AssemblyTreeNode.cs

@@ -134,6 +134,10 @@ namespace ICSharpCode.ILSpy.TreeNodes
 					this.Children.Add(ns);
 			}
 		}
+		
+		public override bool CanExpandRecursively {
+			get { return true; }
+		}
 
 		public TypeTreeNode FindTypeNode(TypeDefinition def)
 		{

ILSpy/TreeNodes/TypeTreeNode.cs

@@ -117,6 +117,10 @@ namespace ICSharpCode.ILSpy.TreeNodes
 			}
 		}
 		
+		public override bool CanExpandRecursively {
+			get { return true; }
+		}
+		
 		public override void Decompile(Language language, ITextOutput output, DecompilationOptions options)
 		{
 			language.DecompileType(type, output, options);

SharpTreeView/SharpTreeNode.cs

@@ -267,12 +267,26 @@ namespace ICSharpCode.TreeView
 				lazyLoading = value;
 				if (lazyLoading) {
 					IsExpanded = false;
+					if (canExpandRecursively) {
+						canExpandRecursively = false;
+						RaisePropertyChanged("CanExpandRecursively");
+					}
 				}
 				RaisePropertyChanged("LazyLoading");
 				RaisePropertyChanged("ShowExpander");
 			}
 		}
 		
+		bool canExpandRecursively = true;
+		
+		/// <summary>
+		/// Gets whether this node can be expanded recursively.
+		/// If not overridden, this property returns false if the node is using lazy-loading, and true otherwise.
+		/// </summary>
+		public virtual bool CanExpandRecursively {
+			get { return canExpandRecursively; }
+		}
+		
 		public virtual bool ShowIcon
 		{
 			get { return Icon != null; }

SharpTreeView/SharpTreeView.cs

@@ -227,11 +227,28 @@ namespace ICSharpCode.TreeView
 						e.Handled = true;
 					}
 					break;
+				case Key.Multiply:
+					if (container != null && ItemsControl.ItemsControlFromItemContainer(container) == this) {
+						container.Node.IsExpanded = true;
+						ExpandRecursively(container.Node);
+						e.Handled = true;
+					}
+					break;
 			}
 			if (!e.Handled)
 				base.OnKeyDown(e);
 		}
 		
+		void ExpandRecursively(SharpTreeNode node)
+		{
+			if (node.CanExpandRecursively) {
+				node.IsExpanded = true;
+				foreach (SharpTreeNode child in node.Children) {
+					ExpandRecursively(child);
+				}
+			}
+		}
+		
 		/// <summary>
 		/// Scrolls the specified node in view and sets keyboard focus on it.
 		/// </summary>