我正在尝试将一个网络应用程序迁移到ASP.Net vNext,最终的目的是让它在
Linux上运行.
@H_301_2@该应用程序有很多反射代码,我必须缺少一些依赖关系,因为我正在得到如此代码的编译错误
@H_301_2@Type.IsPrimitive,Type.GetConstructor Type.GetMethod Type.GetTypeArray@H_301_2@我的project.json文件中有以下依赖关系
Error CS1061 ‘Type’ does not contain a definition for ‘IsPrimitive’ and no extension method ‘IsPrimitive’ accepting a first argument of type ‘Type’ could be found (are you missing a using directive or an assembly reference?) @H_301_2@Error CS1061 ‘Type’ does not contain a definition for ‘GetMethod’ and no extension method ‘GetMethod’ accepting a first argument of type ‘Type’ could be found (are you missing a using directive or an assembly reference?) @H_301_2@Error CS1061 ‘Type’ does not contain a definition for ‘GetProperties’ and no extension method ‘GetProperties’ accepting a first argument of type ‘Type’ could be found (are you missing a using directive or an assembly reference?) @H_301_2@Error CS1061 ‘Type’ does not contain a definition for ‘GetInterface’ and no extension method ‘GetInterface’ accepting a first argument of type ‘Type’ could be found (are you missing a using directive or an assembly reference?)
"frameworks" : {
"aspnetcore50" : {
"dependencies": {
"System.Runtime": "4.0.20-beta-22416","System.Linq": "4.0.0.0-beta-22605","System.Reflection": "4.0.10.0-beta-22605","System.Reflection.Primitives": "4.0.0.0-beta-22605","System.Runtime.Extensions": "4.0.10.0-beta-22605","System.Reflection.Extensions": "4.0.0.0-beta-22605"
}
@H_301_2@以下编译在VS 2013和.Net 4.5下,但不会在VS 2015中使用上述依赖项进行编译
using System;
using System.Reflection;
namespace Project1
{
public class Class1
{
public Class1()
{
Type lBaseArrayType = typeof(Array);
Type lStringType = typeof(string);
string[] lStringArray = new string[1];
if (lStringType.IsPrimitive)
{
}
ConstructorInfo lConstructor = lStringType.GetConstructor(new Type[0]);
MethodInfo lMethod = lStringType.GetMethod("Equals");
Type[] lTArray = Type.GetTypeArray(lStringArray);
PropertyInfo[] lProps = lStringType.GetProperties();
}
}
}
解决方法
如果您使用的是aspnetcore .IsPrimitive可用,但不是Type的成员.您可以在TypeInfo下找到它,可以通过调用Type的GetTypeInfo()方法来访问它.在你的例子中,它将是：
lStringType.GetTypeInfo().IsPrimitive@H_301_2@Type.GetMethod()也可用,但您需要在project.json文件中引用System.Reflection.TypeExtensions包. @H_301_2@Type.GetTypeArray()缺少,但您可以轻松地编写一个简单的linq查询来检索数组中的成员类型数组. @H_301_2@Type.GetInterface()不包括在内,但是再次使用System.Reflection.TypeExtensions将会公开另一种为指定类型生成所有实现的接口的Type []的方法.
Type[] types = Type.GetInterfaces()@H_301_2@Type.GetProperties()可以通过System.Reflection.TypeExtensions库再次可用.
