[Quickfix-users] Quickfix42 getHeader() problem for .NET

[Christodoulou, C. D (london) <chr...@ml...>]

Hi

Has anybody been able to use getHeader() from the .NET version of quickfix42
(version 1.5.0)?

Just to give you a bit of background:

1. I downloaded the windows NT version of quickfix for .NET. 

2. I created a new solution called testcase.

3. I created a project called test1  - this is a simple form which has a
button on it. In the button event I include the testcode, a reference to
quickfix_net_debug, the using QuickFix42 statement and changed
Application.Run(new Form1() to System.Windows.Forms.Application.Run(new
Form1().

4. All I do is create an instance of a NewOrderSingle and try and get back
the reference to the Header (or trailer). See below. It is at this point it
fails with:-
-- Cannot implicitly convert type 'QuickFix.Message.Header' to
'QuickFix42.Header'


Here is the testcode I am using to find out why it's not working (it's just
a subset of the actual code I use):-


		private void button1_Click(object sender, System.EventArgs
e)
		{

			try
			{

				// Create a FIX NewOrderSingle request.
				NewOrderSingle newOrder = new
NewOrderSingle();

				Header header = newOrder.getHeader();  <=
Error

				header.setField(new
QuickFix.SenderCompID("sender123"));
	
				QuickFix.MsgType msgType = new
QuickFix.MsgType();			
				QuickFix.StringField strType =
header.getField(msgType);
					
	
System.Diagnostics.Trace.WriteLine(msg.getValue());
			}
			catch ( Exception exc )
			{
	
System.Diagnostics.Trace.Write(exc.ToString());
			}


		
		}
	}



The getHeader() is declared as follows:

namespace QuickFix42
{
  public __gc class Header : public QuickFix::Message::Header
  {
    Header(QuickFix::Message* message) :
QuickFix::Message::Header(message)
{}
    
    NET_FIELD_SET(BeginString);
    NET_FIELD_SET(BodyLength);
    NET_FIELD_SET(MsgType);

	...
  }

  ...

  Header* getHeader() { return
dynamic_cast<Header*>(QuickFix::Message::getHeader()); }

}

Therefore I am expecting it to return a QuickFix42 header, however it
actually thinks it's returning a QuickFix header which results in the
Above compilation error. Looking at the object browser it too thinks it's a
quickfix header event though the source code returns a quickfix42.

Thanks
Chris