Hello,
I have a problem with an AddIn for 2025 that I can't categorise at all and have never had before.
I have created a solution in Visual Studio with an AddIn project (.Net8) and a WinForms project (also .Net8).
Both work independently of each other.
Now I have defined a button in the AddIn. Clicking on it should open the form. It works.
I have been using Syncfusion controls as third party controls for years.
If I now place any Syncfusion control on the form, the ButtonDefinition.OnExecute event is no longer fired in the AddIn.
If I delete the form, create a new standard form and use it, the event is fired again.
(Note: When I start the Winforms project with Synfusion controls independently, everything works as expected).
private void CmdBtnTEST_OnExecute(NameValueMap Context)
{
// out-of-the-box form: works
WinFormsApp_Net8.StandardForm standardForm = new();
standardForm.ShowDialog();
// Form with SyncFusion Control
//WinFormsApp_Net8.SfForm1 form1 = new(); <-- Uncomment this and OnExecute will not fire!
//form1.ShowDialog();
}
I am writing this here in this forum because I have no idea what is going on.
Is this an Inventor problem, a .Net problem or does it have something to do with Syncfusion?
Perhaps someone here can give me a hint.
Thanks,
Christoph
