Silverlight Hierarchical template for Multiple Types in Treeview

[www Developerof NET]

public class TreeItem { public string HeaderTag { get; set; } public List<TreeStatusItem> StatusItems { get; set; } public List<TreeItem> items { get; set; } public TreeItem() { StatusItems = new List<TreeStatusItem>(); } } public class TreeStatusItem { #region Properties [DataMember] public string StatusText { get; set; } [DataMember] public string StatusValue { get; set; } } Here a TreeItem has a HaderTag which displays as the Header for the treeview, the StatusItems contains items of a different type and the items have a List of the container class itself. The sample data would be -RegionName(object of TreeItem type) --Oustanding(object of TreeStatusItem type) --Live (object of TreeStatusItem type) --Areas(object of TreeItem type) ----Oustanding(object of TreeStatusItem type) ----Live (object of TreeStatusItem type) ----SubAreas(object of TreeItem type) ...... ... I need to bind the data which is List<TreeItem> to a silverlight treeview. I can`t figure out how the hierarchical template should be !!!!

When you fail to plan, you are planning to fail.

[Mycroft Holmes]

I create a class ReportNode, it uses the NodeTag property to store the actual record that is used to populate the treenode

	public class ReportNode : ViewModelBase
	{
		public ReportNode(string sLabel, object oObject, string sColor)
		{
			NodeLabel = sLabel;
			NodeTag = oObject;
			Color = sColor;
		}
		public string NodeLabel { get; set; }
		public object NodeTag { get; set; }
		public string Color { get; set; }

		private ObservableCollection<ReportNode> \_ChildNodes;
		public ObservableCollection<ReportNode> ChildNodes
		{
			get
			{ return \_ChildNodes; }
			set
			{
				\_ChildNodes = value;
				base.OnPropertyChanged("ChildNodes");
			}
		}
	}

Hierarchical data template binds the itemssource to the ChildNodes collection. When loading the nodes I stuff the NodeLabel with the text to display and the list object goes in the NodeTag property. When accessing the node I test the typeof the nodetag to determine what to do with the node. I have 1 tree with 6 different data sources, works perfectly.

Never underestimate the power of human stupidity RAH