problem about "send to port "

When I build a model,I have a unusual problem.So I post my model, I want somebody to give me a hand.

Problem Description:

When item leaves from Queue2,it send a message to Queue3 to create a same item(type and color).

And then items in Queue3 will be send to the processor by itemtype,
just like following example:

itemtype1 will be processed in processor1
itemtype2 will be processed in processor2

I already check the items in queue3,they have their own itemtype and color.And I already choose the command "case by value" at the flow menu in the Queue3.But they can not be send to the processor by itemtype.


thanks for your help in advance

When you use the insertcopy command in a queue, at the moment it is created, it is ready to exit and the Send To Port code is fired as well. This happens before you get a chance to set the items itemtype. To "fix" that, I closed the output port of the queue (in the OnMessage trigger), then do the code you have and then at the end, I added a openoutput command. I also checked the box "Reevaluate Sendto on Downstream Availability". So when the openoutput command executes, it will "recalculate" where the flowitem should go. By that time, it does know what itemtype it is and will go to the proper place. I've attached your model with these changes.

I see the corrected model,thanks for your help very much