How can I access the Node in tree using NodeID, is there any property for node as NODEID or ID? Can I store two distinct values with a tree node like Text to display and Id for the Node?
Every nodeID is unique, because it is composed of the node's exact location, including the position in each level. You can use the GetIDString method to return a node's unique ID. This is covered in the API docs - http://help.infragistics.com/Help/NetAdvantage/NET/2007.3/CLR2.0/html/Infragistics2.WebUI.UltraWebNavigator.v7.3~Infragistics.WebUI.UltraWebNavigator.UltraWebTree~GetNodeFromId.html
You can also use the Tag or DataKey properties to store unique values that can be used to access the nodes at a later time.
-Tony