C# generics syntax for multiple type parameter constraints

Possible Duplicate: Generic methods and multiple constraints I need a generic function that has two type constraints, each inheriting from a different base class. I know how to do this with one type: void foo<T>() where T : BaseClass However, I don't know how to do this with two types: void foo<TOne, TTwo>() where TOne : BaseOne // and TTwo : BaseTwo ??? How do you do thi

用于多种类型参数约束的C#泛型语法

可能重复: 通用方法和多个约束 我需要一个通用函数,它有两个类型约束,每个约束都从不同的基类继承。 我知道如何用一种类型来做到这一点: void foo<T>() where T : BaseClass 但是,我不知道如何使用两种类型执行此操作: void foo<TOne, TTwo>() where TOne : BaseOne // and TTwo : BaseTwo ??? 你怎么做到这一点? (使用.NET 2) void foo<TOne, TTwo>() where TOne : BaseOne where

How to get the type of T from a member of a generic class or method?

Let say I have a generic member in a class or method, so: public class Foo<T> { public List<T> Bar { get; set; } public void Baz() { // get type of T } } When I instantiate the class, the T becomes MyTypeObject1 , so the class has a generic list property: List<MyTypeObject1> . The same applies to a generic method in a non-generic class: public cla

如何从泛型类或方法的成员中获取T的类型?

假设我在类或方法中有一个通用成员,所以: public class Foo<T> { public List<T> Bar { get; set; } public void Baz() { // get type of T } } 当我实例化类时, T变成MyTypeObject1 ,所以这个类有一个通用的列表属性: List<MyTypeObject1> 。 这同样适用于非泛型类中的泛型方法: public class Foo { public void Bar<T>() { var baz = new List&

Why does C# forbid generic attribute types?

This causes a compile-time exception: public sealed class ValidatesAttribute<T> : Attribute { } [Validates<string>] public static class StringValidation { } I realize C# does not support generic attributes. However, after much Googling, I can't seem to find the reason. Does anyone know why generic types cannot derive from Attribute ? Any theories? Well, I can't answ

为什么C#禁止泛型属性类型?

这会导致编译时异常: public sealed class ValidatesAttribute<T> : Attribute { } [Validates<string>] public static class StringValidation { } 我意识到C#不支持通用属性。 但是,经过Google搜索之后,我似乎无法找到原因。 有谁知道为什么泛型类型不能从Attribute派生? 任何理论? 那么,我无法回答为什么它不可用,但我可以确认它不是CLI问题。 CLI规范没有提及它(据我所知),如果直接使用I

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I want to do something like this : myYear = record.GetValueOrNull<int?>("myYear"), Notice the nullable type as the generic parameter. Since the GetValueOrNull function could return null my first attempt was this: public static T GetValueOrNull<T>(this DbDataRecord reader, string columnName) where T : class { object columnValue = reader[columnName]; if (!(columnValue is

可以使用可空类型作为通用参数?

我想要做这样的事情: myYear = record.GetValueOrNull<int?>("myYear"), 注意可空类型作为泛型参数。 由于GetValueOrNull函数可能返回null,我的第一次尝试是这样的: public static T GetValueOrNull<T>(this DbDataRecord reader, string columnName) where T : class { object columnValue = reader[columnName]; if (!(columnValue is DBNull)) { return (T)columnValue; }

Get groups from Active Directory using C#

I am having issues getting the groups from Active Directory via System.DirectoryServices Originally I started my application on a computer that was registered on the domain, but as it was a live domain I did not want to do any writes to AD what so ever, so I set up a machine with Windows XP as the host operating system, and installed windows server 2003 on a VM. I've added another Etherne

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我有一个简单的Web应用程序使用ASP.NET MVC3和Ninject.Web.MVC(MVC3版本)。 整个事情工作正常,除了应用程序结束时。 无论什么时候结束,内核都会被释放,如NinjectHttpApplication中的Application_End()所示: 反射器告诉我这一点: public void Application_End() { lock (this) { if (kernel != null) { kernel.Dispose(); kernel = null; } this.

.net windows service local application data is different then in normal app

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.net Windows服务本地应用程序数据是不同的,然后在正常的应用程序

在正常的控制台应用程序中, Environment.SpecialFolder.LocalApplicationData是C: Users Simon AppData Local 在Windows服务中 Environment.SpecialFolder.LocalApplicationData是C: Windows system32 config systemprofile AppData Local 我如何在两种类型的应用程序中指定相同的路径? 请记住,服务在不同的用户配置文件下运行(可以是LOCAL_SERVICE,NETWORK_SERVICE等)如果您希望它们相同,请在您的用

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Say I've got an object that exists for the duration of an application. Let's call it GlobalWorker. GlobalWorker has events eg UserLoggedIn to which other objects can subscribe. Now imagine I've got a Silverlight page or an asp.net page or something, that subscribes to the UserLoggedIn event when it is constructed. public SomePage() { GlobalWorker.Instance.UserLoggedIn += new Event

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My project references Library1.dll and Library2.dll . Library2.dll has a dependency on Library1.dll , but it was compiled to reference it by a different name, Library1.Net40.dll . Is there an nice way tell my application to redirect all references for Library1.Net40.dll to resolve to Library1.dll ? Maybe something similar to the way you can redirect versions using a <bindingRedirect>?

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Hi I need to set proxy address of IE programmatically Earlier I used to use this RedTomahawk.TORActivator but it doesnot gives an option to set those proxies which requires username and password. How can we set those proxies which needs username and passwords Please provide examples like void Setproxy(string ip,string port,string uname,string pwd) { ///Code here } You could P/Invoke the

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您好我需要以编程方式设置IE的代理地址 之前我曾经使用这个RedTomahawk.TORActivator,但它没有给出一个选项来设置那些需要用户名和密码的代理。 我们如何设置那些需要用户名和密码的代理 请提供例子 void Setproxy(string ip,string port,string uname,string pwd) { ///Code here } 你可以P /调用WinHttpSetDefaultProxyConfiguration函数。 更新: 包括要求的例子: [StructLayout(LayoutKind.Sequential, CharS