How can I bind dynamic xml file to asp tree view? - asp.net

Question

I am trying to bind information from a web service to a tree view in my asp.net website. Using a drop down list, I choose a stock symbol that retrieves that company's information from the web service. I am currently outputting that information as a string.
What I am trying to do is bind it to a tree view dynamically. This is where I'm at:
My aspx.cs file..
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using net.webservicex.www;
using System.Xml;
public partial class _Default : System.Web.UI.Page
{
private net.webservicex.www.StockQuote StockQuote;
private string StockInfo;
private XmlDocument stockDoc = new XmlDocument();
protected void Page_Load(object sender, EventArgs e)
{
}
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
string symbol = DropDownList1.SelectedItem.Text;
StockQuote = new net.webservicex.www.StockQuote();
StockInfo = StockQuote.GetQuote(symbol);
stockDoc.LoadXml(StockInfo);
test.Text = StockInfo;
}
}
I cannot configure the data source in design view because it's dynamic, and I never used a hierarchical scheme. Do I need to do that? Is there another way?

Answer 1

Use an XmlDataSource and set it's DataFile property to the desired Xml file. Now go to your TreeView and set it's DataSourceID to the ID of XmlDataSource object.
Update
I just noticed that you are getting your Xml from a service. In that case use the Data property of XmlDataSource object to set the data xml.
Update
Declare your XmlDataSource in the aspx markup and set it as the DataSourceID of the TreeView (again in the markup). In the code behind (in an appropriate event), do something like below.
xmlDataSource.Data = StockInfo; // StockInfo is your string variable
treeView.DataBind(); // i am not sure whether this is necessary
Hope this helps.