RAD Studio (Common)
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E2301: Method '%s' with identical parameters and result type already exists (Delphi)

Within a class, you cannot publish multiple overloaded methods with the same name. Maintenance of runtime type information requires a unique name for each published member.

Copy Code
type 
    TSomeClass = class 
    published 
    function Func(P: Integer): Integer; 
    function Func(P: Boolean): Integer;   // error
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