C#反射方式调用泛型方法
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Reflection; namespace WindowsFormsApplication8 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Paster<Ent>(String dicNo) where Ent : class, new() { var ent = new Ent(); var list = new List<Ent>(); for (int i = 0; i < 10; i++) { var e = new Ent(); list.Add(e); } Console.WriteLine(typeof(Ent).ToString() + "__" + dicNo +"___" + ent); } private void button1_Click(object sender, EventArgs e) { Type t = this.GetType(); BindingFlags flags = BindingFlags.NonPublic | BindingFlags.Instance; var m1 = this.GetType().GetMethod("Paster", flags); var info= m1.MakeGenericMethod(typeof(SEnt)); //object list = t.InvokeMember(null, // BindingFlags.DeclaredOnly | // BindingFlags.Public | BindingFlags.NonPublic | // BindingFlags.Instance | BindingFlags.CreateInstance, null, null, new object[] { }); info.Invoke(this,new Object[]{"ttt"}); } } public class SEnt { public String Name { get; set; } public override string ToString() { return DateTime.Now.ToString(); } } }
参考2：
using System; using System.Reflection; namespace RFTest { //类ReflectionTest中定义了一个泛型函数DisplayType和泛型类MyGenericClass class ReflectionTest { //泛型类MyGenericClass有个静态函数DisplayNestedType public class MyGenericClass<T> { public static void DisplayNestedType() { Console.WriteLine(typeof(T).ToString()); } } public void DisplayType<T>() { Console.WriteLine(typeof(T).ToString()); } } class Program { static void Main(string[] args) { ReflectionTest rt = new ReflectionTest(); MethodInfo mi = rt.GetType().GetMethod("DisplayType");//先获取到DisplayType<T>的MethodInfo反射对象 mi.MakeGenericMethod(new Type[] { typeof(string) }).Invoke(rt, null);//然后使用MethodInfo反射对象调用ReflectionTest类的DisplayType<T>方法，这时要使用MethodInfo的MakeGenericMethod函数指定函数DisplayType<T>的泛型类型T Type myGenericClassType = rt.GetType().GetNestedType("MyGenericClass`1");//这里获取MyGenericClass<T>的Type对象，注意GetNestedType方法的参数要用MyGenericClass`1这种格式才能获得MyGenericClass<T>的Type对象 myGenericClassType.MakeGenericType(new Type[] { typeof(float) }).GetMethod("DisplayNestedType", BindingFlags.Static | BindingFlags.Public).Invoke(null, null); //然后用Type对象的MakeGenericType函数为泛型类MyGenericClass<T>指定泛型T的类型，比如上面我们就用MakeGenericType函数将MyGenericClass<T>指定为了MyGenericClass<float>，然后继续用反射调用MyGenericClass<T>的DisplayNestedType静态方法 Console.ReadLine(); } } }
参考3：
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Runtime.Remoting.Messaging; using System.ServiceModel; namespace UI { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { CallContext.LogicalSetData("aa", "12343"); } private void button2_Click(object sender, EventArgs e) { var t= CallContext.LogicalGetData("aa"); Console.WriteLine(t); } private void button3_Click(object sender, EventArgs e) { var index= "23423".IndexOf("a"); CallContext.FreeNamedDataSlot("aa"); var methodName="TestA"; var methodInfo= this.GetType().GetMethod(methodName); var ps= methodInfo.GetParameters(); var attrs= methodInfo.GetCustomAttributes(typeof(OperationContractAttribute), false); if (attrs.Length > 0) { var attr = attrs[0] as OperationContractAttribute; var serviceTypeName = attr.Action; var serviceType = Type.GetType(serviceTypeName); var inType = ps[0].ParameterType; var outType = methodInfo.ReturnType; //var linkGenericType =typeof(LongInvokeLink<,,>); var linkGenericType = Type.GetType("UI.LongInvokeLink`3"); var linkType=linkGenericType.MakeGenericType(inType, outType, serviceType); var service = Activator.CreateInstance(linkType, Guid.NewGuid().ToString()); var completedMInfo = linkType.GetMethod("Complete4Success"); var loadParamMInfo=linkType.GetMethod("Begin"); var inModel=loadParamMInfo.Invoke(service,null); CallContext.SetData("Link", service); var outModel=methodInfo.Invoke(this,new object[]{inModel}); CallContext.FreeNamedDataSlot("Link"); completedMInfo.Invoke(service, new object[] { outModel }); } } [OperationContract(Action = "UI.IService1")] public TestResponse TestA(TestRequest b) { var link = CallContext.GetData("Link") as ILongInvokeLink; link.P("搞点提示啊", 33); return new TestResponse() { Name = b + "aa" }; } } public class Class12<T> { } public class TestRequest { public String Name { get; set; } public long Id { get; set; } } public class TestResponse { public String Name { get; set; } public long Id { get; set; } } #region public class LongInvokeLink<InType, OutType, ServiceType> : ILongInvokeLink where InType : class , new() where OutType : class where ServiceType :class { Object _Service; private String _Guid = null; public LongInvokeLink(string guid) { _Guid = guid; } public InType Begin() { return new InType(); } public void Complete4Success(OutType model) { Console.WriteLine("Complete4Success"); } public void P(string tips, int percent){ Console.WriteLine(string.Format("tips:{0},percent{1}", tips, percent)); } public void P(string tips) { P(tips, 50); } public void P(int percent) { P("222",60); } } public interface ILongInvokeLink { void P(string tips, int percent); void P(string tips); void P(int percent); } #endregion }
参考4:
#region 删除字表数据 var dic4Call = new Dictionary<string, List<Type>>(); dic4Call["menuCfg_"] = new List<Type>() { typeof(FF_FormMenuCfg), typeof(IFF_FormMenuCfgService) }; dic4Call["statisticsCfg_"] = new List<Type>() { typeof(Sys_SQLStatistics), typeof(ISys_SQLStatisticsService)}; dic4Call["importCfg_"] = new List<Type>() { typeof(FF_FormImportAct), typeof(IFF_FormImportActService)}; dic4Call["authCfg_"] = new List<Type>() { typeof(FF_FormAuthorization), typeof(IFF_FormAuthorizationService)}; dic4Call["fieldEditCfg_"] = new List<Type>() { typeof(FF_FormFieldEditCfg), typeof(IFF_FormFieldEditCfgService)}; dic4Call["searchCfg_"] = new List<Type>() { typeof(FF_FormSearchCfg), typeof(IFF_FormSearchCfgService)}; dic4Call["updateCfg_"] = new List<Type>() { typeof(FF_FormUpdateAct), typeof(IFF_FormUpdateActService)}; dic4Call["fields_"] = new List<Type>() { typeof(FF_FormField), typeof(IFF_FormFieldService)}; dic4Call["sfcCfg_"] = new List<Type>() { typeof(FF_FormSFCCfg), typeof(IFF_FormSFCCfgService) }; dic4Call["moreMenuCfg_"] = new List<Type>() { typeof(FF_FormMoreMenuCfg), typeof(IFF_FormMoreMenuCfgService) }; dic4Call["pkCfg_"] = new List<Type>() { typeof(FF_FormPKCfg), typeof(IFF_FormPKCfgService) }; foreach (var item in dic4Call.Values) { var field = item[0].Name == "Sys_SQLStatistics" ? "SQLNo" : "FormNo"; var delSQL = string.Format("delete from {0} Where {1}='{2}'", item[0].Name,field,freeForm.FormNo ); #region 注意代理类的反射创建与接口方法反射是分开的 var method = typeof(ServiceLocator).GetMethod("Fetch", System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Static); var fetchMethod = method.MakeGenericMethod((Type)item[1]); var srv = fetchMethod.Invoke(this, null); var method2 = item[1].GetInterface("IDaoBase`1").GetMethod("ExeSql");//非常操蛋--要先获取父接口 method2.Invoke(srv, new object[] { delSQL }); #endregion //Fetch<IFF_FormService>().ExeSql(delSQL); //Console.WriteLine(delSQL); } #endregion
参考：
var type4Card = typeof(ZJ_Task_Card); foreach (var it in _ProcHandleCfgList) { it.ParamListProperty = type4Card.GetProperty(it.ParamListPropertyName); //等价于ParamEntType = typeof(YT_Task_Card_Param) it.ParamListEntType = it.ParamListProperty.PropertyType.GetGenericArguments()[0]; }
var hCfg = _ProcHandleCfgList.FirstOrDefault(ent => ent.ProcNo == card.PAType); if (hCfg == null) throw new Exception(string.Format("工序{0}未配置工序处理信息!",card.PAType)); var pty = hCfg.ParamListProperty; var paramList = pty.GetValue(card, null) as IList; if (!paramListDic.ContainsKey(pty)) { var paramType = hCfg.ParamListEntType; var listType = typeof(List<>).MakeGenericType(paramType); paramListDic[pty] = Activator.CreateInstance(listType) as IList; } foreach (var param in paramList) { paramListDic[pty].Add(param); } #region var type = paramList.GetType().GetGenericArguments()[0]; var serviceTypeName = string.Format("com.geelyhd.MFG.IService.I{0}Service", type.Name); var serviceType = Assembly.Load("com.geelyhd.MFG.IService").GetType(serviceTypeName); var method = typeof(ServiceLocator).GetMethod("Fetch", System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Static); var fetchMethod = method.MakeGenericMethod(serviceType); var srv = fetchMethod.Invoke(this, null); var method2 = serviceType.GetInterface("IDaoBase`1").GetMethod("AddList");//非常操蛋--要先获取父接口 // method2.Invoke(srv, new object[] { delSQL }); #endregion
