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Editorial Team
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Asked: 2026-06-09T09:18:48+00:00

I’m using a BindingList in a UserControl to determine update the UI of the

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I’m using a BindingList in a UserControl to determine update the UI of the Control. ListChanged and AddingNew events are assigned in the constructor.

I was finding that the BindingList’s events were not being fired and after a bit of exploration found that the onListChanged and onAddingNew event handlers were null.

After even more digging I found my problem – that the UserControl’s parent form’s designer is creating the line:

this.myUserControl1.MyBindingList = ((System.ComponentModel.BindingList<MyCustomClass>)(resources.GetObject("myUserControl1.MyBindingList")));

Any ideas how to stop the designer from redefining this BindingList?

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1 Answer

  1. Editorial Team

    I think I may have fixed it – I added the following above the definition of the property in MyUserControl

    [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]

    Although to be honest I was messing round with a lot of stuff and it may have been any number of things (all to do with serialization of MyCustomClass – it was initially Serialized due to the designer complaining about it not being serialized but then this broke other things).

    I will wiki-fy this answer in case anybody comes up with a more solid answer!

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