How to bind data from datatable in treeview?

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I want to bind data from datatable in treeview control in Asp.net C#. I have one table with columns Id and Name. And I want to create treeview with parent, child and subchild,
For example parents are 0,1,2....9 , childs of 0 are 00,01,02,03, , childs of 1 are 10,11,12,12.....Subchild of 00 is 000,001,002...... for 10 are 101, 102......
How to do that with out parentID column?

Please help...

Posted 17-Jul-14 23:30pm

R.Elena

Updated 17-Jul-14 23:32pm

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danigeraleddin · Answer 1 · 2014-07-21T08:50:00

Hello,
I think you should work the id column as a varchar variable and cross it in a for loop, taking the length of each id as the hierarchical level of the node, ie length = 1 would root node, the length = 2 the child node and length = 3 subchild node. Possibly you must use recursive functions.

nilesh sawardekar · Answer 2 · 2014-07-18T00:12:00

Solution 1

Try this
http://www.codeproject.com/Articles/7884/Data-Binding-TreeView-in-C[^]

Posted 18-Jul-14 0:12am

nilesh sawardekar

sharathrr · Answer 3 · 2014-07-18T00:14:00

Hi you can use like this.

Suppose If you have two columns (ParentID and ChildID), You can filter Child rows and bind it to the new treenodes.

C#

private void AddNode(DataTable dt, string ChildID, TreeNode childnode)
     {

         DataRow[] dr = dt.Select("ParentID ='" + ChildID+ "');
         foreach (DataRow drChild in dr)
         {
             TreeNode childnode1 = new TreeNode();
             childnode1.Text = drChild["Name"];
             childnode.Nodes.Add(childnode1);
             AddNode(dtChild, drChild["ChildID"].ToString(), childnode1);
       }
     }

-Thanks
Sharath

How to bind data from datatable in treeview?

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