I have a UserControl and I put some public Methods/Properties in there.
I would like to have that when the user of my UserControl types something and Intellisense opens, that he immediately sees my custom methods created in the UserControl, is that possible somehow by marking the methods/props with kind of attributes?
No, this is not something that can be easily done. Visual Studio will sort the methods/properties alphabetically.
To do what you want, you will need to: