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ASP.NET Tree Control

, 12 Jun 2003
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ASP.NET tree control is a Custom Control (.ascx) that builds a tree structure. All you have to do is to use two methods of the control. The AddNodeDiv which will add the Node and BuildTree which will build it.

Sample Image - Preview.gif


ASP.NET tree control is a Custom Control (.ascx) that builds a tree structure. All you have to do is to use two methods of the control. The AddNodeDiv which will add a Node and BuildTree which will build it. Please note that the Node type parent should be only used for the first level nodes. The Node Click event is raised and the source code is in JavaScript file. The control also selects the current node. You can make this as a DLL by just copying the methods and properties to a class file

The following will explain how to use the control:

  1. Add the mrTree.ascx, mrtree.ascx.vb, mrFunctions.js, plus.gif, minus.gif files to your Visual Studio .NET project.
  2. Drag the mrTree.ascx to your aspx page (in design mode).
  3. Declare your tree (Public mrTree1 As mrTree)
  4. Use the AddNodeDiv method of the Tree to build your nodes (See examples).
  5. Once you have added all your Nodes, call the BuildTree() method to build the tree.
  6. If there are any errors in building, the control will write it to Errors property of the tree.
  7. The JavaScript file has the function which run when you click the node.
  8. You can always change the source code to fit your needs.

I hope this helps.


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About the Author

Murthy Rojukhirdu
Web Developer
United States United States
No Biography provided

Comments and Discussions

GeneralCode License Pinmemberqbak2228-Jun-07 11:32 
QuestionIs it possible to create .dll file from user controls(.ascx) in C# .net PinmemberYasotha Devi24-Oct-06 20:26 
Generali can't move tree PinmemberCenturion20002-May-06 0:07 
GeneralNull Exception Pinmemberamardeep dabass1-Jan-06 19:51 
GeneralParent node display problem PinmemberMichael Waddell17-Feb-05 12:41 
GeneralTreeview with database Pinmemberhelgapataki22-Nov-04 5:56 
GeneralPostBack Pinmemberzorrer22-Nov-04 1:55 
Generaldocument.all property not W3C instead Pinmemberismail codar.7-Oct-04 6:00 
GeneralI tried to use this code but it's not working in Netscape. Pinmemberkishorereddy9-Sep-04 10:27 
GeneralTree Control needs some tweaking. PinmemberJeepy30-Jun-04 12:53 
GeneralEven More Tweaking = Performance! PinmemberJeepy1-Jul-04 8:01 
GeneralRe: Even More Tweaking = Performance! PinmemberJeepy7-Jul-04 13:21 
GeneralRe: Even More Tweaking = Performance! PinmemberNithing18-Sep-08 20:38 
GeneralMake sure NodeKey doesn't have :\ PinmemberJeepy22-Jun-04 8:30 
GeneralTree in DLL 21:16 
Generalimage on tree view control Pinmembersathiya8882-Nov-03 18:36 
GeneralRe: image on tree view control PinmemberDustin Burke11-Aug-05 8:17 
GeneralLength of content PinmemberJason McBurney13-Jun-03 9:18 
GeneralRe: Length of content PinmembertheJazzyBrain18-Jun-03 2:28 
GeneralRe: Length of content PinsussAnonymous19-Jun-03 23:29 
GeneralRe: Length of content PinsussAnonymous18-Jun-03 2:58 

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