ASP. NET Treeview Recursion

 

 

Using System;

Using System. Collections. Generic;

Using System. LINQ;

Using System. Web;

Using System. Web. UI;

Using System. Web. UI. webcontrols;

 

Using QHR. qhrservice;

 

Namespace QHR

{

Public Partial Class Test : System. Web. UI.Page

{

QHR. qhrservice. qhrserviceclient proxy = New qhrservice. qhrserviceclient ();

Qhrservice.Myprotocolstructurecollection Collection = Null;

 

Protected Void Page_load(Object Sender,Eventargs E)

{

If(! Ispostback)

{

Collection = Proxy. getallprotocolstructure();

Loadtree();

}

}

 

Private Void Loadtree()

{

This. Treeview1.nodes. Clear();

Inittree(This. Treeview1.nodes,Null);

}

 

private void inittree ( treenodecollection NDS , string parentid )

{

Treenode Tmpnd = Null;

myprotocolstructurecollection collectiontemp = New myprotocolstructurecollection ();

foreach ( myprotocolstructure pstemp in collection )

{

If(Pstemp. PID = Parentid)

{

Collectiontemp. Add(Pstemp);

}

}

 

foreach ( myprotocolstructure ps in collectiontemp )

{

Tmpnd = New Treenode();

Tmpnd. Text = PS. Name;

Tmpnd. Value = PS. ID;

If(Parentid = Null)

{

Tmpnd. Expanded = True;

}

Else

{

Tmpnd. Expanded = False;

}

NDS. Add(Tmpnd);

Inittree(NDS[NDS. Count - 1]. Childnodes,PS. ID);

}

}

}

}