[Solved] Programmatically Create Custom Nodes

[Ed Bassin]

Hello,

I'm loading a tree from my database inside of Page Load with the following code:

if (!Page.IsPostBack) {

string query = "SELECT id, node_name, node_type,"+

" default_value, attributes, parent_id FROM default_tree";

dataSource = MyMasterPage.executeSQLQuery(query);

Hashtable hash = new Hashtable();

foreach (DataRow dr in dataSource.Rows) {

int id = Convert.ToInt32(dr["id"]);

string node_name = dr["node_name"].ToString();

string node_type = dr["node_type"].ToString();

string value = dr["default_value"].ToString();

string attributes = dr["attributes"].ToString();

int parent_id = Convert.ToInt32(dr["parent_id"]);

RadTreeNode node = new RadTreeNode(node_name);

//here I want to be able to customize the node

node.Value = parent_id + ';' + node_type + ';' + value + ';' + attributes;

hash.Add(id, node);

if (parent_id == 0) {

optionsTree.Nodes.Add(node);

} else {

RadTreeNode parent = (RadTreeNode)hash[parent_id];

parent.Nodes.Add(node);

}

}

}

Based on the node_type value, I want to change the node in the tree.

The possible special node types are:
List (drop down list)
Header (uneditable)
Number (textfield)
String (textfield)
Password (passwordfield)
Boolean (checkbox)

How do I change the type of node that this is in the tree?  I tried to figure out how to add a custom template here but couldn't figure it out.

Thanks

[Veselin Vasilev]

Hello Ed Bassin,

Have you tried to implement this goal using templates at runtime? I believe that this article will get you started:
Adding and Editing Templates at Runtime


Greetings,
Veskoni
the Telerik team

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[Ed Bassin]

thank you