Biegral Blog

本文主要介绍net技术中"反射"的使用方法,包括如何对属性赋值,获取变量,属性,方法,事件的列表,如何设置属性及调用方法等.希望对新人有所帮助咯.

 //反射的使用方法 public class TestProperty { private int i_seqnum = 0; private string s_authorid = string.Empty; public int SeqNum { get { return i_seqnum; } set { i_seqnum = value; } } public string AuthorID { get { return s_authorid; } set { s_authorid = value; } } public TestProperty() { } public TestProperty(string as_authorid) { this.AuthorID = as_authorid; } public void GetAuthorID() { if (s_authorid == "" || s_authorid == string.Empty) { System.Console.WriteLine("Null"); } else { System.Console.WriteLine(s_authorid); } } } //调用方式 TestProperty test = new TestProperty(); Type t = test.GetType(); //列出类型的结构信息 System.Console.WriteLine("列出类型的结构信息"); ConstructorInfo[] test_constructor = t.GetConstructors(); foreach (ConstructorInfo item_constructor in test_constructor) { System.Console.WriteLine(item_constructor.Name); } //列出TestProperty类中所有变量 System.Console.WriteLine("列出TestProperty类中所有变量"); FieldInfo[] test_field = t.GetFields(); foreach (FieldInfo item_field in test_field) { System.Console.WriteLine(item_field.Name); } //列出TestProperty类中所有属性 System.Console.WriteLine("列出TestProperty类中所有属性"); PropertyInfo[] list_property = t.GetProperties(); foreach (PropertyInfo item_property in list_property) { System.Console.WriteLine(item_property.Name); } //列出TestProperty类中所有方法 System.Console.WriteLine("列出TestProperty类中所有方法"); MethodInfo[] test_method = t.GetMethods(); foreach (MethodInfo item_method in test_method) { System.Console.WriteLine(item_method.Name); } //列出TestProperty类中所有事件 System.Console.WriteLine("列出TestProperty类中所有事件"); EventInfo[] test_event = t.GetEvents(); foreach (EventInfo item_event in test_event) { System.Console.WriteLine(item_event.Name); } //赋值 t.GetProperty("SeqNum").SetValue(test, 1, null); t.GetProperty("AuthorID").SetValue(test, "ADB01", null); //取值 int i_seqnum = Convert.ToInt32(t.GetProperty("SeqNum").GetValue(test, null)); string s_authorid = t.GetProperty("AuthorID").GetValue(test, null).ToString(); //使用反射调用方法 //test.GetAuthorID(); System.Console.WriteLine("使用反射调用方法"); string[] s = { "BC001" }; MethodInfo method_getauthorid = t.GetMethod("GetAuthorID"); //第1种方法 object obj_name = Activator.CreateInstance(t, s); method_getauthorid.Invoke(obj_name, null); //第2种方法 object obj = Activator.CreateInstance(t); method_getauthorid.Invoke(obj, null);