Use a property as a named attribute parameter. : Attribute Definition « Attribute « C# / CSharp Tutorial

C# / CSharp Tutorial
1. Language Basics
2. Data Type
3. Operator
4. Statement
5. String
6. struct
7. Class
8. Operator Overload
9. delegate
10. Attribute
11. Data Structure
12. Assembly
13. Date Time
14. Development
15. File Directory Stream
16. Preprocessing Directives
17. Regular Expression
18. Generic
19. Reflection
20. Thread
21. I18N Internationalization
22. GUI Windows Forms
23. 2D
24. Design Patterns
25. Windows
26. XML
27. ADO.Net
28. Network
29. Directory Services
30. Security
31. unsafe
Microsoft Office Word 2007 Tutorial
Java
Java Tutorial
Java Source Code / Java Documentation
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
C# / C Sharp
ASP.Net
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
PHP
Python
SQL Server / T-SQL
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
C# / CSharp Tutorial » Attribute » Attribute Definition 
10. 4. 5. Use a property as a named attribute parameter.
 
  
using System;  
using System.Reflection; 
  
[AttributeUsage(AttributeTargets.All)] 
public class MyAttribute : Attribute 
  public string remark;
 
  public int priority; 
 
  public string supplement; 
 
  public MyAttribute(string comment) { 
    remark = comment; 
    supplement = "None"
  
 
  public string Remark 
    get 
      return remark; 
    
  
 
  public int Priority 
    get 
      return priority; 
    
    set 
      priority = value; 
    
  
}  
 
[MyAttribute("This class uses an attribute."
                 supplement = "This is additional info."
                 Priority = 10)] 
class UseAttrib 

 
class MainClass {  
  public static void Main() {  
    Type t = typeof(UseAttrib)
 
    Console.Write("Attributes in " + t.Name + ": ")
 
    object[] attribs = t.GetCustomAttributes(false);  
    foreach(object o in attribs) { 
      Console.WriteLine(o)
    
 
    // Retrieve the MyAttribute. 
    Type tRemAtt = typeof(MyAttribute)
    MyAttribute ra = (MyAttribute
          Attribute.GetCustomAttribute(t, tRemAtt)
 
    Console.Write("Remark: ")
    Console.WriteLine(ra.remark)
 
    Console.Write("Supplement: ")
    Console.WriteLine(ra.supplement)
 
    Console.WriteLine("Priority: " + ra.priority)
  }  
}

        
Attributes in UseAttrib: MyAttribute
Remark: This class uses an attribute.
Supplement: This is additional info.
Priority: 10
  
10. 4. Attribute Definition
10. 4. 1. Create Attribute
10. 4. 2. Attribute with supplement information
10. 4. 3. Positional vs. Named Parameters
10. 4. 4. Use a named attribute parameter.
10. 4. 5. Use a property as a named attribute parameter.
10. 4. 6. Assembly level attributes don't have to be in the assemblyinfo.cs file, but must be lised outside of any namespae definition.
10. 4. 7. A custom attribute based on bool value
w_ww_._ja__v___a__2___s_.c_o__m | Contact Us
Copyright 2003 - 08 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.