Compiler Error C3103

 

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The latest version of this topic can be found at Compiler Error C3103.

argument': repeated named argument

An attribute can not repeat named arguments.

For more information, see User-Defined Attributes.

The following sample generates C3103.

// C3103.cpp  
// compile with: /clr /c  
using namespace System;  
  
[AttributeUsage(AttributeTargets::All)]  
public ref class Attr : public Attribute {  
public:  
   int m_t;  
};  
  
[Attr(m_t = 10, m_t = 1)]   // C3103  
// try the following line instead  
// [Attr(m_t = 10)]  
ref class A {};  

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