topic Re: iLogic - pop a message whenever specific parameter change in a part in Inventor Programming Forum

iLogic - pop a message whenever specific parameter change in a part

danielhibner55 — Tue, 11 Nov 2025 15:13:27 GMT

Hello,

I have an assembly of frames built on a basis of a rectangular skeleton. This skeleton is a part of rectangular sketch which have a length and height, the length is set to a parameter called "Length". I am a newbie in iLogic, meaning that I barely know coding in it. My goal is that whenever the "Lengh" is change (in the part or via edit part in the assembly) a massage pop saying something (here, since the length determine something critical in the bottom frame, I want message that say "Pay attention to the bottom frame due to length change!").

I would really appreciate any help, thank you very much!

Re: iLogic - pop a message whenever specific parameter change in a part

andrewiv — Tue, 11 Nov 2025 21:47:54 GMT

This can be very simple if you want it to be. Just add a rule to the part similar to this.

'Name of the parameter that will trigger the rule LENGTH MessageBox.Show("This is the message to be shown.")

Re: iLogic - pop a message whenever specific parameter change in a part

danielhibner55 — Wed, 12 Nov 2025 13:55:58 GMT

thank you! its not working:

when I try it this way:

its is working but the message title is what I wrote in the text and the message content is the value of the parameter "Length", like this:

and I want the title to be "Attention", the content to be "Hello", and not showing the Length value at all. its will be nice to add bottum like "yes" and "no" as well.

Re: iLogic - pop a message whenever specific parameter change in a part

Curtis_W — Wed, 12 Nov 2025 15:32:39 GMT

@danielhibner55 wrote:

and I want the title to be "Attention", the content to be "Hello", and not showing the Length value at all. its will be nice to add bottom like "yes" and "no" as well.

@danielhibner55 , here is a quick example that shows how to add and use Yes/No buttons. Hope that helps, Curtis

MessageInput = MessageBox.Show("Did you pay attention to the bottom frame due to length change!", "iLogic", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button2) If MessageInput = vbCancel Then Exit Sub ' exit the rule ElseIf MessageInput = vbNo Then 'do somthing MessageBox.Show("Well, you now you know! " & ChrW(&H263A), "you clicked " & MessageInput.ToString) Exit Sub ' exit the rule 'ElseIf MessageInput = vbYes Then ' 'do something else, or do nothing and continue rule End If MessageBox.Show("Thanks for paying attention! 👍 ", "you clicked " & MessageInput.ToString)