NodeLayout myLayout = new NodeLayout();
            myLayout.Key = "CompanyLayout";
            myLayout.TargetTypeName = "SecurityApp.CAPs.Model.Company";
            myLayout.DisplayMemberPath = "company_name";

            NodeLayout myLayout2 = new NodeLayout();
            myLayout2.Key = "SiteLayout";
            myLayout2.TargetTypeName = "SecurityApp.CAPs.Model.Site";
            myLayout2.DisplayMemberPath = "site_name";

            tree.GlobalNodeLayouts.Add(myLayout);
            tree.GlobalNodeLayouts.Add(myLayout2);


System.Windows.Data Error: BindingExpression path error: 'site_name' property not found on 'SecurityApp.CAPs.Model.Company' 'SecurityApp.CAPs.Model.Company' (HashCode=7637115). BindingExpression: Path='Data.site_name' DataItem='Infragistics.Controls.Menus.XamDataTreeNodeDataContext' (HashCode=18390601); target element is 'Infragistics.Controls.Menus.XamDataTreeNodeControl' (Name=''); target property is 'Content' (type 'System.Object')..
System.Windows.Data Error: BindingExpression path error: 'site_name' property not found on 'SecurityApp.CAPs.Model.Company' 'SecurityApp.CAPs.Model.Company' (HashCode=54271769). BindingExpression: Path='Data.site_name' DataItem='Infragistics.Controls.Menus.XamDataTreeNodeDataContext' (HashCode=4606636); target element is 'Infragistics.Controls.Menus.XamDataTreeNodeControl' (Name=''); target property is 'Content' (type 'System.Object')..
System.Windows.Data Error: BindingExpression path error: 'site_name' property not found on 'SecurityApp.CAPs.Model.Company' 'SecurityApp.CAPs.Model.Company' (HashCode=43901854). BindingExpression: Path='Data.site_name' DataItem='Infragistics.Controls.Menus.XamDataTreeNodeDataContext' (HashCode=618145); target element is 'Infragistics.Controls.Menus.XamDataTreeNodeControl' (Name=''); target property is 'Content' (type 'System.Object')..
System.Windows.Data Error: BindingExpression path error: 'site_name' property not found on 'SecurityApp.CAPs.Model.Company' 'SecurityApp.CAPs.Model.Company' (HashCode=66389266). BindingExpression: Path='Data.site_name' DataItem='Infragistics.Controls.Menus.XamDataTreeNodeDataContext' (HashCode=13105749); target element is 'Infragistics.Controls.Menus.XamDataTreeNodeControl' (Name=''); target property is 'Content' (type 'System.Object')..
System.Windows.Data Error: BindingExpression path error: 'site_name' property not found on 'SecurityApp.CAPs.Model.Company' 'SecurityApp.CAPs.Model.Company' (HashCode=7637115). BindingExpression: Path='Data.site_name' DataItem='Infragistics.Controls.Menus.XamDataTreeNodeDataContext' (HashCode=37029065); target element is 'Infragistics.Controls.Menus.XamDataTreeNodeControl' (Name=''); target property is 'Content' (type 'System.Object')..