Tips for creating programmatically webpart, which class should you use (SP2010)

You want to create a webpart for SharePoint 2010 but you don’t know which class to use ?
I was using those way :

• Search on google and find examples
• Randomly type in Visual studio the webpart name, example : content, and it would propose me the classes ContentByQuery…

But there is a more simple way :

• Create the webpart by interface in SharePoint 2010

• Export the .webpart file from the webpart

This will export a .webpart

• Now edit it with a text editor

You could see the full namespace used, and so the ClassName : ContentByQueryWebpart.

Hope that helped,