Im running an ASP.NET MVC application (in Debug mode) from LocalHost in MS VS 2013 Pro. The application connects to a remote database. For some reason the application has become much slower 'overnight'. It all used to work smooth up until about a day ago. Now for some reason when I boot my machine up (cold boot) and run the application it works perfectly. But just say I close the ap
我在MS VS 2013 Pro中从LocalHost运行ASP.NET MVC应用程序(以调试模式)。 应用程序连接到远程数据库。 出于某种原因,该应用程序“过夜”的速度变慢了。 一直到大约一天前,它都被用于工作。 现在由于某种原因,当我启动我的机器(冷启动)并运行应用程序时,它完美地工作。 但只要说我关闭了应用程序并停止调试,然后再次运行该应用程序,它实际上超慢。 如果我重新启动机器,然后运行应用程序,一切都恢复正常。 所以
Possible Duplicate: Difference between static class and singleton pattern? I'm thinking about the choice between Static classes and Singleton pattern on C#. Do you know how static classes are created? In particular, I would know if a static class is unique during program execution and what are pro or cons against Singleton pattern. Thank you in advance. A static class can not be in
可能重复: 静态类和单例模式之间的区别? 我正在思考C#上的静态类和单例模式之间的选择。 你知道如何创建静态类吗? 特别是,我会知道在程序执行期间静态类是否是唯一的,以及对单例模式有利或不利的。 先谢谢你。 静态类不能实例化。 一个单身人士可以立即进行一次。 讨论使用Singleton模式 还有更多
Possible Duplicate: Difference between static class and singleton pattern? we use static class for common operation. the same thing can be done singleton class also here i am giving two class one is static class and one is singleton class. actually things is getting harder for me that when one should go for static class and when we should go for singleton class. public sealed class SiteS
可能重复: 静态类和单例模式之间的区别? 我们使用静态类来进行常规操作。 同样的事情也可以做singleton类 在这里,我给两个一级是静态类,一个是单身类。 实际上对于我来说事情变得越来越困难,因为我们应该去静态课,当我们去单身课堂的时候。 public sealed class SiteStructure { /// <summary> /// This is an expensive resource we need to only store in one place. /// </summary>
I have an object cache which implements the Singleton design pattern. My approach to singleton was always to lazy load the static instance when the property is first accessed. public static Widget { get { if(instance==null) instance = new Widget(); return instance; } } However, I know that this approach isn't thread safe and the check for instance being null int
我有一个实现Singleton设计模式的对象缓存。 当我第一次访问属性时,我对单例的方法总是延迟加载静态实例。 public static Widget { get { if(instance==null) instance = new Widget(); return instance; } } 但是,我知道这种方法不是线程安全的,而对于实例为空的检查引入了一个小的低效率。 在实例化静态实例的类上实现静态构造函数是否明智? 据我了解,每当第一个静态属性访问发生时,
Say I have a class that's meant to perform a single function. After performing the function, it can be destroyed. Is there any reason to prefer one of these approaches? // Initialize arguments in constructor MyClass myObject = new MyClass(arg1, arg2, arg3); myObject.myMethod(); // Pass arguments to method MyClass myObject = new MyClass(); myObject.myMethod(arg1, arg2, arg3); // Pass argu
假设我有一个课程旨在执行单一功能。 执行该功能后,可能会被销毁。 有没有任何理由更喜欢这些方法之一? // Initialize arguments in constructor MyClass myObject = new MyClass(arg1, arg2, arg3); myObject.myMethod(); // Pass arguments to method MyClass myObject = new MyClass(); myObject.myMethod(arg1, arg2, arg3); // Pass arguments to static method MyClass.myMethod(arg1, arg2, arg3); 我故意模糊了
I have few controllers that inherit from the same base class. Among the different actions that they don't share with each other, they do have a few that are completely identical. I would like to have these on my base class because they all work completely the same it's just that they're accessed through different routes. How should I define these actions with several different rou
我有几个控制器从相同的基类继承。 在他们不相互分享的不同行为中,他们确实有一些完全相同的行为。 我想将这些放在我的基类上,因为它们的功能完全相同,只是它们通过不同的路线进行访问。 我应该如何用几条不同的路线来定义这些动作? 我的继承类也有一个RoutePrefixAttribute集,因此它们都指向不同的路由。 例 我有一个叫做Vehicle基础抽象类,然后继承了Car , Bike , Bus等等。他们都会有共同的行为Move() /bus
When declaring an array in C like this: int array[10]; What is the initial value of the integers?? I'm getting different results with different compilers and I want to know if it has something to do with the compiler, or the OS. If the array is declared in a function, then the value is undefined. int x[10]; in a function means: take the ownership of 10-int-size area of memroy without do
当在C中声明一个数组时,像这样: int array[10]; 整数的初始值是多少? 我用不同的编译器得到了不同的结果,我想知道它是否与编译器或操作系统有关。 如果数组在函数中声明,那么值是未定义的。 int x[10]; 在一个函数中意味着:在不进行任何初始化的情况下获取memroy的10-int-size区域的所有权。 如果数组被声明为全局函数或在函数中声明为static ,则所有元素如果尚未初始化,则将其初始化为零。 由标准设置,所有全
Which C#/.NET Dependency Injection frameworks are worth looking into? And what can you say about their complexity and speed. edit (not by the author): There is a comprehensive list of IoC frameworks available at https://github.com/quozd/awesome-dotnet/blob/master/README.md#ioc: Castle Windsor - Castle Windsor is best of breed, mature Inversion of Control container available for .NET and Silv
哪些C#/ .NET依赖注入框架值得研究? 你可以说他们的复杂性和速度。 编辑 (不是作者):https://github.com/quozd/awesome-dotnet/blob/master/README.md#ioc提供了一个完整的IoC框架列表: 温莎城堡 - 温莎城堡是.NET和Silverlight中最好的成熟的Inversion of Control容器 Unity - 轻量级可扩展依赖注入容器,支持构造函数,属性和方法调用注入 Autofac - 一个令人上瘾的.NET IoC容器 DryIoc - 简单,快速的全
Title says it all. Is there anything wrong with await Task.Run(() => semaphore.WaitOne()); ? System.Threading.Semaphore isn't thread-affine, so I wouldn't think there would be a problem. I know that the SemaphoreSlim class is available, but I need to do cross-process synchronization, and SemaphoreSlim doesn't do that. Or can/should I create my own custom type of WaitHandle ?
标题说明了一切。 await Task.Run(() => semaphore.WaitOne());有什么问题await Task.Run(() => semaphore.WaitOne()); ? System.Threading.Semaphore不是线程仿射的,所以我不认为会有问题。 我知道SemaphoreSlim类可用,但我需要做跨进程同步,而SemaphoreSlim不会那样做。 或者可以/我应该创建自己的自定义类型的WaitHandle吗? 如果你想在这里等待信号量的时候保持UI的响应,这可能是有道理的,但有一个问题
Do guys know that how to get numbers of online users using .NET identity 2.0 membership providers in MVC 5 ? I have scan the methods in UserManager that Identity sample gives but no helping. This should be somewhat accurate at displaying the user count. It uses a cache to store the user's IP address and returns a count of individual IPs. If two people are behind the same proxy it will c
那么大家知道如何在MVC 5中使用.NET身份2.0成员提供商的在线用户数量? 我已经扫描了UserManager中的方法,Identity样本给出了但没有帮助。 这在显示用户数量时应该有点准确。 它使用缓存来存储用户的IP地址并返回单个IP的计数。 如果两个人在同一个代理后面,它会将其计为一个人。 using System.Runtime.Caching; public int UsersOnlineCount { get { return MemoryCache.Default.Where(kv => kv.Va