iphone tableview & webservice

Question

Hi, I have a tableview, when the user selects a row i call a webservice depending on which row is selected.

my problem is i can connect to the webservice but i dont get any response from the webservice. I used soap client to test if webservice is working correctly or not.

//rootviewcontroller.m

    - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {....
    //call to webservice
    [self connectToWebService];
    }

On debugging i found that my code does not go to any of the following methods

-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *) response{}
-(void) connection:(NSURLConnection *) connection didReceiveData:(NSData *) data {}
-(void) connection:(NSURLConnection *) connection didFailWithError:(NSError *) error{}
-(void) connectionDidFinishLoading:(NSURLConnection *) connection {}

any suggestions where am i going wrong??? thanks

-(void)connectToWebService
{
        NSString *soapMsg = [NSString stringWithFormat:
                         @"<?xml version=\"1.0\" encoding=\"utf-8\"?>"
                         "<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"&gt;"
                         "<soap:Body>"
                             " <GetCount xmlns=\"http://192.168.1.104/Service1\"&gt;"
                             "<PropId>718</PropId>"
                             "</GetCount>"
                             "</soap:Body>"
                             "</soap:Envelope>"];
        NSURL *url = [NSURL URLWithString: 
                      @"http://192.168.1.104/defpath/service1.asmx"];
        NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];
        //---set the headers---
        NSString *msgLength = [NSString stringWithFormat:@"%d",[soapMsg length]];
        [req addValue:@"text/xml; charset=utf-8" 
        forHTTPHeaderField:@"Content-Type"];
        [req addValue:@"http://192.168.1.104/defpath/Service1/GetCount" 
        forHTTPHeaderField:@"SOAPAction"];
        [req addValue:msgLength forHTTPHeaderField:@"Content-Length"];

        //---set the HTTP method and body---
        [req setHTTPMethod:@"POST"];
        [req setHTTPBody: [soapMsg dataUsingEncoding:NSUTF8StringEncoding]];

        conn = [[NSURLConnection alloc] initWithRequest:req delegate:self];
        if (conn) {
            webData = [[NSMutableData data] retain];
            }