C# - How does the ToolTip work?

Question

I was wondering how I am able to add one ToolTip control to the Form, and all the buttons get different texts? How does one object extends all the others, adding diferent things on each one? I don't know if I am being clear, If I don't, please let me know! Thanks in advance!

Answer 1

I think you are looking for Extender Providers, where you can define new properties for other components.

This is a feature of Visual Studio designer. The ToolTip control does not actually add a property to other controls, but Visual Studio knows that when you have a ToolTip (or any other component that is an Extender Provider), it should add some other properties to property grid of the other controls. All this information is queried from the component that provides those properties (ToolTip). When you set the tooltip for button for example, Visual Studio calls the SetToolTip method of the ToolTip control, to inform it of the new value for the control.

Please refer to provided links for more information.