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Code Issues specific to partial methods

There are several conditions that are applied to partial methods, such as:

    Partial methods must be void
    Signatures of both parts of partial methods must match
    Access modifiers are not allowed for partial methods
    Partial methods must be declared in partial classes
    etc

You don’t have to remember all these conditions if you have the CodeRush code issues feature turned on. When the rule of the partial method declaration is violated, code issues will show you an error or a hint, and you can fix it before you compile the code. These code issues are:
Partial method cannot have access modifiers or the virtual, abstract, override, new, sealed, or extern modifiers

If a partial method has an invalid modifier (e.g., virtual, abstract, override, new, sealed, extern, or an access modifier) you will see an error in the code editor, because partial methods cannot have these type of modifiers:
CodeRush Partial method cannot have modifiers
CodeRush Partial method cannot have access modifiers
Partial method cannot have out parameters

Out parameters are not allowed for partial methods. If a partial method is declared with ‘out’ parameters, you will see an error:

CodeRush Partial method cannot have out parameters
Partial method must be declared within a partial class or partial struct

Partial methods can only reside inside a partial class or a partial structure, otherwise, an error is shown:

CodeRush Partial method must be declared within a partial class
Partial method has only single part

When the partial method has only a single part without a declaration, it does not need to be declared as partial. This code issue has a hint type:

CodeRush Partial method has only single part