C# 0 The Complete Reference

RemarkAttribute

 that adds a field called 

Supplement

, which can be 

used to hold a supplemental remark:

 [AttributeUsage(AttributeTargets.All)]

public class RemarkAttribute : Attribute {

  string pri_remark; // underlies Remark property

  // This can be used as a named parameter:

  public string Supplement;

  public RemarkAttribute(string comment) {

    pri_remark = comment;

    Supplement = "None";

  }

  public string Remark {

    get {

      return pri_remark;

    }

  }

}

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As you can see, 

Supplement

 is initialized to the string “None” by the constructor. There 

is no way of using the constructor to assign it a different initial value. However, because