The dialog opens in various cases when you need to select a class that implements a specific element.
The dialog contains two tabs:
Search by Name Tab
Use the tab to search a relevant class by specifying its name or part of the name.
Search pattern area
In this text field, type a part of the name of the relevant class.
Search results area
The area shows a list of the classes that meet the search pattern. The contents of the area change dynamically as you type.
Use this tab to select the relevant class in the project tree.