Should ASP.NET Page Functions Be Static Methods?

Analyze the advantages and disadvantages of declaring methods as static methods

While IDEs like ReSharper often recommend converting ASP.NET page functions to static methods, be sure to consider the impact of doing so.

Performance and namespace pollution

While making a method static may slightly improve performance, this is usually a secondary consideration. Namespace pollution (static methods can clutter the namespace) is a more pressing issue.

Logical considerations

The main factor in deciding whether to make a method static should be its logical dependence on the class. If the method logically acts on an instance of the class, it should remain an instance method. Conversely, if a method is related to the class itself rather than to an instance of the class, it should be made a static method.

Instance methods and class-related methods

Consider the following:

• A method should be an instance method if it acts on an instance and uses its state.
• If a method acts on an instance but does not use its state, it may still be an instance method if it is logically related to the instance.
• If a method is only relevant to the class itself, it should be made a static method.

Move method to utility class

Moving static methods to utility classes is only recommended if the methods are related to types that you have no control over. This helps avoid confusion and maintain a logical structure.

Additional considerations for virtual methods

When considering whether to make a method virtual, it is important to remember that a derived class may need to access the method even if the base class does not use any of its instance state.

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