assembly.createinstance运行缓慢 [英] assembly.createinstance works slow

问题描述

您好。



我正在执行A.EXE，我想从其他应用程序打开一些表单并在A.EXE中显示。让我们有另一个名为B.EXE的Windows应用程序。我想在A.EXE中打开一个表单，该表单是在B.EXE中设计的。 assembly.createinstance方法让我实现了这个目标，但我发现它在某些情况下运行缓慢：如果它是第一次打开在B.EXE中设计的表单，并且B.EXE很大。我无法忍受我需要超过10秒才能打开儿童表格。我怎么能批准这个表现呢？



我正在维护一个系统。我想使用一个应用程序打开许多表单，但它们在另一个应用程序中定义。所以，A.exe是我的主要应用程序，我有很多像B这样的应用程序。我可以在我的主应用程序中打开外部表单，但有时候很慢。我希望有一种方法可以让它更快。

解决方案

你无法改进它。你的观察是正确的：你所做的事情比其他大多数反射方法都要慢。



你应该检查你的架构。反射是一个不同的有价值的特征，但在大多数情况下，通过名称找到任何东西是使用它的最糟糕的想法之一。特别是，如果拼错名称，编译器将无法帮助您。你根据一些硬编码的字符串值来做自己。你对目标的非常不完整的描述并不能说服你真的想要它。有更好的方法，但在我能理解你的终极目标之前，我无法给你任何想法。

-SA

Hello.

I'm executing A.EXE, I want to open some forms from another apps and show in A.EXE. Let there be another windows application named B.EXE. I want to open a form in A.EXE, and that form is designed in B.EXE. assembly.createinstance method make me achieve this goal, but I found it works slowly in some situation: if it is the first time opening a form designed in B.EXE, and B.EXE is large. I can't stand that I need more than 10 sec to open a child form. How could I approve the performance?

I am maintaining a system. I want to use one application to open many forms, but they are defined in another applications. So, A.exe is my main application, and I have many apps like B. I can open outer forms in my main app, but sometimes slow. I wish there is a way to make it faster.

解决方案

You cannot improve it. Your observation is correct: what you do is relatively slow, as most of other reflection methods.

You should review your architecture. Reflection is a vary valuable feature, but finding anything by name is one of the worst ideas of using it, in most cases. In particular, if you misspell the name, a compiler won't help you. You make yourself depending on some hard-coded string values. Your very incomplete description of your goals does not convince me that you really want it. There are much better approaches, but I cannot give you any idea before I can understand your ultimate goals.

—SA

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