如何在c#中通过反射获得命名空间中的所有类?


当前回答

以下代码打印当前程序集中定义的指定名称空间中的类名称。 正如其他人指出的那样,名称空间可以分散在不同的模块之间,因此需要首先获得程序集列表。

string nspace = "...";

var q = from t in Assembly.GetExecutingAssembly().GetTypes()
        where t.IsClass && t.Namespace == nspace
        select t;
q.ToList().ForEach(t => Console.WriteLine(t.Name));

其他回答

正如FlySwat所说,您可以在多个程序集中拥有相同的命名空间(例如System.Collections.Generic)。如果还没有加载所有这些程序集,则必须加载它们。完整的答案是:

AppDomain.CurrentDomain.GetAssemblies()
                       .SelectMany(t => t.GetTypes())
                       .Where(t => t.IsClass && t.Namespace == @namespace)

这应该工作,除非你想要其他域的类。要获得所有域名的列表,请点击此链接。

以下代码打印当前程序集中定义的指定名称空间中的类名称。 正如其他人指出的那样,名称空间可以分散在不同的模块之间,因此需要首先获得程序集列表。

string nspace = "...";

var q = from t in Assembly.GetExecutingAssembly().GetTypes()
        where t.IsClass && t.Namespace == nspace
        select t;
q.ToList().ForEach(t => Console.WriteLine(t.Name));

如果其中一个类型子类化了另一个程序集中的类型,你可能会发现LoaderException错误,下面是一个修复:

// Setup event handler to resolve assemblies
AppDomain.CurrentDomain.ReflectionOnlyAssemblyResolve += new ResolveEventHandler(CurrentDomain_ReflectionOnlyAssemblyResolve);

Assembly a = System.Reflection.Assembly.ReflectionOnlyLoadFrom(filename);
a.GetTypes();
// process types here

// method later in the class:
static Assembly CurrentDomain_ReflectionOnlyAssemblyResolve(object sender, ResolveEventArgs args)
{
    return System.Reflection.Assembly.ReflectionOnlyLoad(args.Name);
}

这应该有助于加载在其他程序集中定义的类型。

希望有帮助!

很简单

Type[] types = Assembly.Load(new AssemblyName("mynamespace.folder")).GetTypes();
foreach (var item in types)
{
}

Namespaces are actually rather passive in the design of the runtime and serve primarily as organizational tools. The Full Name of a type in .NET consists of the Namespace and Class/Enum/Etc. combined. If you only wish to go through a specific assembly, you would simply loop through the types returned by assembly.GetExportedTypes() checking the value of type.Namespace. If you were trying to go through all assemblies loaded in the current AppDomain it would involve using AppDomain.CurrentDomain.GetAssemblies()