我有这个库编译为calc.dll。
命名空间MyClass的 { 公共类计算器 { 公众诠释值1 {获得;组;} 公众诠释值2 {获得;组;} 公共计算器() { 值1 = 100; 值2 = 200; } 公众诠释添加(INT VAL1,INT将val2) { 值1 = VAL1;值2 = val2的; 返回值1 +值2; } } }
我要实例化的计算课,而不会链接到calc.dll。可C#这样做吗?我想出了这个code,但我不知道如何实例化计算器类。
使用系统; 使用System.IO; 使用的System.Reflection; 使用System.Diagnostics程序; 使用System.Collections.Generic; 命名空间EX { 公共类code { 公共静态无效测试() { 字符串路径= Directory.GetCurrentDirectory(); 目标字符串= Path.Combine(路径,@./ myclass.dll); 大会ASM = Assembly.LoadFrom(目标); 计算器H =新计算器(); //< - ??? 类型类型= h.GetType(); MethodInfo的M = type.GetMethod(添加); INT RES =(int)的m.Invoke(H,参数); Console.WriteLine({0},RES); } 公共静态无效的主要() { 测试(); } } }ADDED
我有两个方案,一个是从巴拉 - [R
VAR参数=新的对象[] {100,200}; 字符串路径= Directory.GetCurrentDirectory(); 目标字符串= Path.Combine(路径,@./ myclass.dll); 大会ASM = Assembly.LoadFrom(目标); 键入计算值= asm.GetType(MyClass.Calculator); 对象H = Activator.CreateInstance(计算值); MethodInfo的M = calc.GetMethod(添加); INT RES =(int)的m.Invoke(H,参数); Console.WriteLine({0},RES);和这一个是从代理-J
字符串路径= Directory.GetCurrentDirectory(); 目标字符串= Path.Combine(路径,@./ myclass.dll); 大会ASM = Assembly.LoadFrom(目标); 类型类型= asm.GetType(MyClass.Calculator); ConstructorInfo男星= type.GetConstructor(Type.EmptyTypes); 对象计算值= ctor.Invoke(空); MethodInfo的M = type.GetMethod(添加); VAR参数=新的对象[] {100,200}; INT RES =(int)的m.Invoke(计算,参数); Console.WriteLine({0},RES);
他们两人的工作,但我还挺preFER巴拉的解决方案,因为它更短和获取物体H 到的CreateInstance 是不是让构造函数来获得更多的intutive 物体H(计算值)。
解决方案 对象H = Activator.CreateInstance(asm.FullName,MyClass.Calculator);
编辑:
看看这个工程
键入计算值= asm.GetType(MyClass.Calculator); 对象H = Activator.CreateInstance(计算值);I have this library to compiled to calc.dll.
namespace MyClass { public class Calculator { public int Value1 {get; set;} public int Value2 {get; set;} public Calculator() { Value1 = 100; Value2 = 200; } public int Add(int val1, int val2) { Value1 = val1; Value2 = val2; return Value1 + Value2; } } }I want to instantiate the Calculate class without linking to the calc.dll. Can C# do that? I came up with this code, but I don't know how to instantiate the Calculator class.
using System; using System.IO; using System.Reflection; using System.Diagnostics; using System.Collections.Generic; namespace EX { public class Code { public static void Test() { string path = Directory.GetCurrentDirectory(); string target = Path.Combine(path, @"./myclass.dll"); Assembly asm = Assembly.LoadFrom(target); Calculator h = new Calculator(); // <-- ??? Type type = h.GetType(); MethodInfo m = type.GetMethod("Add"); int res = (int) m.Invoke(h, param); Console.WriteLine("{0}", res); } public static void Main() { Test(); } } }ADDED
I have two solutions, one is from Bala R
var param = new object[] {100, 200}; string path = Directory.GetCurrentDirectory(); string target = Path.Combine(path, @"./myclass.dll"); Assembly asm = Assembly.LoadFrom(target); Type calc = asm.GetType("MyClass.Calculator"); object h = Activator.CreateInstance(calc); MethodInfo m = calc.GetMethod("Add"); int res = (int) m.Invoke(h, param); Console.WriteLine("{0}", res);And this one is from agent-j
string path = Directory.GetCurrentDirectory(); string target = Path.Combine(path, @"./myclass.dll"); Assembly asm = Assembly.LoadFrom(target); Type type = asm.GetType("MyClass.Calculator"); ConstructorInfo ctor = type.GetConstructor(Type.EmptyTypes); object calc = ctor.Invoke(null); MethodInfo m = type.GetMethod("Add"); var param = new object[] {100, 200}; int res = (int) m.Invoke(calc, param); Console.WriteLine("{0}", res);Both of them are working, but I kinda prefer Bala's solution as it's shorter and getting object h through CreateInstance is more intutive than getting constructor to get object h(calc).
解决方案 object h = Activator.CreateInstance(asm.FullName, "MyClass.Calculator");EDIT:
See if this works
Type calc = asm.GetType("MyClass.Calculator)"; object h = Activator.CreateInstance(calc);
更多推荐
如何实例化类中使用反射在C#/。NET程序集?
发布评论