General Performance Tip: Using Statements and Unused References

Updated January 2024

This series of articles explores essential tips that should consistently be integrated into your coding practices. While these tips may appear incremental, their cumulative impact becomes pronounced, especially when dealing with high message volumes. Embracing these fundamental practices can yield substantial benefits for overall performance.

Removing Unused Using Statements

Incorporating unnecessary using statements that import redundant namespaces in your code can hinder the creation of a type. To address this, go to each class in the project, right-click, and select Remove and Sort Usings, or utilize the keyboard shortcuts Ctrl+R, Ctrl+G. Alternatively, you can employ the CodeRush refactoring tool (freely available from DevExpress) to automatically clean up using statements when saving the file.

A window will appear as depicted below. Click Apply to initiate the removal of the references.

For further information, please consult the Analyzing Code for Issues chapter in my code performance book.

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