Try to get list of folders using webDav   

Hi, 

I am trying to get a list of foders using webdav. I took the script from the 
msdn site.
We use exchange 2003 . 
The build of the project succeeded but an error occured on this row :
Response = (HttpWebResponse)Request.GetResponse();
The error mesage is - The remote server returned an error: (404) Not Found.
I thought that the problem is in this url - 
string strRootURI = http://mailit.com/exchange/davide/;
but when I try it in the IE , I see my inbox. 

1. How can I solve this problem ?
2. I don't know the special exchange sql syntax - 
Code BlockstrQuery = "<?xml version=\"1.0\"?><D:searchrequest xmlns:D = 
\"DAV:\" >";
strQuery += "<D:sql>SELECT \"DAV:href\" FROM scope('hierarchical traversal 
of \"";
strQuery += strRootURI + "\"')</D:sql></D:searchrequest>";

I know the sql server sql syntax but it's different.
Where I can learn about it ?

Thanks,
David

using System;

using System.Net;

using System.IO;

using System.Text;

using System.Xml;

namespace ExchangeSDK.Snippets.CSharp

{

class GettingListOfFoldersWebDAV

{

[STAThread]

static void Main(string[] args)

{

// Variables.

System.Net.HttpWebRequest Request;

System.Net.WebResponse Response;

System.Net.CredentialCache MyCredentialCache;

 
string strRootURI = http://mailit.com/exchange/davide/;

string strUserName = "a0elbaz";

string strPassword = "123456";

string strDomain = "moia";

string strQuery = "";

byte[] bytes = null;

System.IO.Stream RequestStream = null;

System.IO.Stream ResponseStream = null;

System.Xml.XmlTextReader XmlReader = null;

try

{

// Build the SQL query.

strQuery = "";

strQuery += "SELECT \"DAV:href\" FROM scope('hierarchical traversal of \"";

strQuery += strRootURI + "\"')";

// Create a new CredentialCache object and fill it with the network

// credentials required to access the server.

MyCredentialCache = new System.Net.CredentialCache();

MyCredentialCache.Add(new System.Uri(strRootURI),

"NTLM",

new System.Net.NetworkCredential(strUserName, strPassword, strDomain)

);

// Create the HttpWebRequest object.

Request = (System.Net.HttpWebRequest)HttpWebRequest.Create(strRootURI);

// Add the network credentials to the request.

Request.Credentials = MyCredentialCache;

// Specify the method.

Request.Method = "SEARCH";

// Encode the body using UTF-8.

bytes = Encoding.UTF8.GetBytes((string)strQuery);

// Set the content header length. This must be

// done before writing data to the request stream.

Request.ContentLength = bytes.Length;

// Get a reference to the request stream.

RequestStream = Request.GetRequestStream();

// Write the SQL query to the request stream.

RequestStream.Write(bytes, 0, bytes.Length);

// Close the Stream object to release the connection

// for further use.

RequestStream.Close();

// Set the content type header.

Request.ContentType = "text/xml";

// Send the SEARCH method request and get the

// response from the server.

Response = (HttpWebResponse)Request.GetResponse();

// Get the XML response stream.

ResponseStream = Response.GetResponseStream();

// Create the XmlTextReader object from the XML

// response stream.

XmlReader = new XmlTextReader(ResponseStream);

// Read through the XML response, node by node.

while (XmlReader.Read())

{

// Look for the opening DAV:href node. The DAV: namespace is

//typically assigned the a: prefix in the XML response body.

if (XmlReader.Name == "a:href")

{

// Advance the reader to the text node.

XmlReader.Read();

// Display the value of the DAV:href text node.

Console.WriteLine("Value: " + XmlReader.Value);

Console.WriteLine("");

//Advance the reader to the closing DAV:href node.

XmlReader.Read();

}

}

// Clean up.

XmlReader.Close();

ResponseStream.Close();

Response.Close();

}

catch (NotSupportedException ex)

{

Console.WriteLine(ex.Message);

Console.ReadLine();

}

catch (WebException ex)

{

Console.WriteLine(ex.Message);

Console.ReadLine();

} 

catch (ProtocolViolationException ex)

{

Console.WriteLine(ex.Message);

Console.ReadLine();

}

catch (InvalidOperationException ex)

{

Console.WriteLine(ex.Message);

Console.ReadLine();

}

catch (Exception ex)

{

// Catch any exceptions. Any error codes from the SEARCH

// method request on the server will be caught here, also.

Console.WriteLine(ex.Message);

Console.ReadLine();

}
}
}
}

date: Tue, 4 Dec 2007 23:15:00 -0800   author:   DavidE