Use AttributeUsage : Attribute « Language Basics « C# / C Sharp

1. C# / C Sharp
2. Language Basics
3. Attribute

Use AttributeUsage

 

using System;

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct,Inherited = false)]
public class ClassVersionAttribute : System.Attribute {
    public ClassVersionAttribute(string target) : this(target, target) {
    }

    public ClassVersionAttribute(string target,string current) {
        m_TargetVersion = target;
        m_CurrentVersion = current;
    }

    private bool m_UseCurrentVersion = false;
    public bool UseCurrentVersion {
        set {
            if (m_TargetVersion != m_CurrentVersion) {
                m_UseCurrentVersion = value;
            }
        }
        get {
            return m_UseCurrentVersion;
        }
    }

    private string m_CurrentName;
    public string CurrentName {
        set {
            m_CurrentName = value;
        }
        get {
            return m_CurrentName;
        }
    }

    private string m_TargetVersion;
    public string TargetVersion {
        get {
            return m_TargetVersion;
        }
    }

    private string m_CurrentVersion;
    public string CurrentVersion {
        get {
            return m_CurrentVersion;
        }
    }
}

 

Related examples in the same category

1.	Subclass System.Attribute
2.	A simple attribute example
3.	Use a named attribute parameter
4.	Creating and using a class attribute.
5.	Attribute in class inheritance
6.	Defining New Attribute Classes
7.	Use a property as a named attribute parameter
8.	Demonstrate the Conditional attribute
9.	Define contant and use it in Conditional attribute
10.	Demonstrate the Obsolete attribute
11.	Illustrates use of the Obsolete attribute
12.	Compiles into a library defining the RamdomSupplier attribute and the RandomMethod attribute
13.	Shows the use of assembly attributes
14.	How to create a custom attribute
15.	Illustrates use of the Conditional attribute
16.	Illustrates the GetCustomAttributes method
17.	demonstrates the flags attribute of an enumeration