How to make a custom GUI for creating an item ?

This is pretty straight forward but I unable to figure it out. I want to create a simple GUI with a create button on it. I want that whenever I hit this button, only then should the source create an item. If someone could attach a simple model demonstrating this it will be a great help.

Simple suggestion that may work in your instance but won’twork in all instances (for example creating multiple objects at the same timeis not supported):

• Create a source with an inter arrival time of 0.
• Close the output on reset of the source.
• Close the output on exit of the source.
• Create a GUI and drag on a button.
• On the OnPress event of the button create a pointer to the source (or use a global variable) and call an openoutput command on it.

Or you could use a Queue instead of a Source. In the Queue's OnMessage trigger, select the Create Flowitems picklist option. Then send a message to the queue from the OnPress of your button.

Originally Posted by Phil BoBo

Or you could use a Queue instead of a Source. In the Queue's OnMessage trigger, select the Create Flowitems picklist option. Then send a message to the queue from the OnPress of your button.

Thanks for the example. For now I am using the code that you used in your model, but for the sake of understanding, what exactly is happening on the message trigger of the queue. I did not get the part where you have used the for command. Also, I am unable to understand how applicationcommand() works.

You don't have to understand exactly how it works. It is a picklist option that was selected from the dropdown menu; you can just use it.

But just fyi:
That applicationcommand() is setting the flowitem's creationtime and updating the default tracked variables (WIP and TimeInSystem) for the newly created flowitem copy.

Thanks.. the only reason I want to understand it in detail is so that I can write more advanced code in case I need to do something specific.