C#特性使用

1.定义属性类

using System;

public class PropertyAttribute:Attribute
{
    public string _tableName;
    public int _date;

    public PropertyAttribute(string tableName)
    {
        this._tableName = tableName;
    }

    public PropertyAttribute(int date)
    {
        this._date = date;
    }
}

 

2.在类中应用属性特性

 

using System;

[Property("Post_Model")]
public class TestModel
{
    private int _postId;
    private string _postName;

    [Property(100)]
    public int PostId
    {
        set { _postId = value; }
        get { return _postId; }
    }

    public string PostName
    {
        set { _postName = value; }
        get { return _postName; }
    }
}

 

3.获取特性值

 

        Type type = typeof(TestModel);

        //PropertyAttribute property = (PropertyAttribute)(type.GetCustomAttributes(false)[0]);  //获取类外的特性
        //Response.Write(property._tableName);

        PropertyAttribute property = (PropertyAttribute)(type.GetProperties()[0].GetCustomAttributes(false)[0]);//获取类里面的特性
        Response.Write(property._date);