How to build simple Treeview programatically?

Hi Friends,

I need to add the 3 items under one root node and show in the form of tree view using programatically. so that please if any body knows please let me know.


Regards,
Pradeep

Public static void updatetreeview(universal_database_manager form) { datatable dt; treenode tn1,tn2,tn3; string databasename; form.datatreeview.nodes.clear(); foreach (databaseinformation di in databaselist) { dt=di.databasetable; if (dt != null) //for a normal database server { tn1 = new treenode(di.connection.datasource + ":-" + di.connection.serverversion); tn1.imageindex=0; form.datatreeview.nodes.add(tn1); foreach(datarow dr1 in di.databasetable.rows) { databasename= dr1["database_name"].tostring(); tn2 = new treenode(databasename ); tn2.imageindex = 1; tn1.nodes.add(tn2); foreach(datarow dr2 in di.gettable(databasename).rows ) { if (dr2["table_catalog"].tostring() == "") { if (string.compare(dr2["table_schema"].tostring(), databasename) == 0) { tn3 = new treenode(dr2["table_name"].tostring()); tn3.imageindex = 2; tn2.nodes.add(tn3); } } else { tn3 = new treenode(dr2["table_schema"].tostring() + "." + dr2["table_name"].tostring()); tn3.imageindex = 2; tn2.nodes.add(tn3); } } } } else //for a normal desktop database { tn1 = new treenode(di.connection.datasource + ":-" + di.connection.serverversion); tn1.imageindex = 0; form.datatreeview.nodes.add(tn1); foreach (datarow dr in di.gettable().rows) { tn1.nodes.add(dr["table_name"].tostring()); tn1.imageindex = 1; } } } } }