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POParameters are not working when calling WebService
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  1. POParameters are not working when calling WebService
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    copied!<p>I have created a .NET-WebService with the fallowing WebMethod:</p> <pre><code> [WebMethod] public DataSet getMyDataset(string param1, string param2) { var ret = new DataSet(); var dt = new DataTable(); dt.Columns.Add("pk", typeof (string)); dt.Rows.Add("aaa"); dt.Rows.Add("bbb"); dt.Rows.Add("ccc"); ret.Tables.Add(dt); return ret; } </code></pre> <p>I am calling it in objective-c like the fallowing way:</p> <pre><code> NSMutableString *sRequest = [[NSMutableString alloc] init]; self.SOAPActionURL = [NSString stringWithFormat:@"%@%@",self.XMLNameSpace, self.MethodName]; //make soap request [sRequest appendString:@"&lt;?xml version=\"1.0\" encoding=\"utf-8\"?&gt;"]; [sRequest appendString:@"&lt;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;"]; [sRequest appendString:@"&lt;soap:Body&gt;"]; [sRequest appendString:[NSString stringWithFormat:@"&lt;%@ xmlns=\"%@\"&gt;",MethodName, XMLNameSpace]]; if(MethodParametersAsString != nil) [sRequest appendString:MethodParametersAsString]; NSEnumerator *tableIterator = [MethodParameters keyEnumerator]; NSString *keyID; while(keyID = [tableIterator nextObject]) { [sRequest appendString:[NSString stringWithFormat:@"&lt;%@&gt;%@&lt;/%@&gt;", keyID, [MethodParameters objectForKey:keyID], keyID]]; NSLog(@"Method: %@ Parameter:%@ Value:%@",self.MethodName, keyID, [MethodParameters objectForKey:keyID], [NSString stringWithFormat:@"&lt;%@&gt;%@&lt;/%@&gt;", keyID, [MethodParameters objectForKey:keyID], keyID]); } //close envelope [sRequest appendString:[NSString stringWithFormat:@"&lt;/%@&gt;", MethodName]]; [sRequest appendString:@"&lt;/soap:Body&gt;"]; [sRequest appendString:@"&lt;/soap:Envelope&gt;"]; NSLog(sRequest); NSURL *myWebserverURL = [NSURL URLWithString:XMLURLAddress]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:myWebserverURL]; [request addValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"]; [request addValue:self.SOAPActionURL forHTTPHeaderField:@"SOAPAction"]; [request setHTTPMethod:@"POST"]; NSData *envelope = [sRequest dataUsingEncoding:NSUTF8StringEncoding]; [request setHTTPBody:envelope]; [request setValue:[NSString stringWithFormat:@"%d", [envelope length]] forHTTPHeaderField:@"Content-Length"]; //[sRequest NSError *WSerror = nil; NSURLResponse *WSresponse = nil; NSMutableData *myMutableData = (NSMutableData *)[NSURLConnection sendSynchronousRequest:request returningResponse:&amp;WSresponse error:&amp;WSerror]; </code></pre> <p>which will create and send the following soap-message:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;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; &lt;soap:Body&gt; &lt;getMyDataset xmlns="http://symas-design.ch"&gt; &lt;param1&gt;val1&lt;/param1&gt; &lt;param2&gt;val2&lt;/param2&gt; &lt;/getMyDataset&gt; &lt;/soap:Body&gt; &lt;/soap:Envelope&gt; </code></pre> <p>Now my problem:</p> <p>The WebMethod getMyDataset is called correctly - but the parameters param1 and param2 are always null (instead of val1 and val2 in this sample). The Return-value of getMyDataset is also correct transfered back to the iPhone. Only the Parameters are not coming to getMyDataset. What I am doing wrong?</p>
 

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