ConstructorInfo GetCustomAttributes不同的实现 [英] ConstructorInfo GetCustomAttributes different implementations

问题描述

在面向Windows 8.1和Windows Phone 8.1的类库中，我有以下代码，其中GetCustomAttributes返回IEnumerable< Attribute>。

< pre class ="prettyprint"> int amountOfParams = constr [x] .GetCustomAttributes（true）.Count（）;

在我的通用应用程序中，我在Windows中导入了库，在Windows Phone项目中，如果我在这里打开类，我会看到同一行返回一个Object []。

所以我尝试用这样的预处理器指令修复它：

 #if WINDOWS_PHONE_APP 
 int amountOfParams = constr [x] .GetCustomAttributes（true）.Length; 
 #else 
 int amountOfParams = constr [x] .GetCustomAttributes（true）.Count（）; 
 #endif 

但是这不起作用它总是选择其他，我也注意到在VS2013更新4的下拉框中指定了如何查看代码只列出（杂项文件）。

有没有办法解决这个问题？

亲切的问候，

EpicParser

解决方案

确保您的项目在Project-> Properties-> Build-> General下包含条件编辑符号NETFX_CORE和WINDOWS_APP。

有关更多信息，请参阅以下链接：

http://www.codeproject.com/Articles/ 845485 /条件编译通用应用程序

http://stackoverflow.com/questions/25975391/the-if -windows-app-directive-never-run-in-a-universal-windows-app-solution

 

还要记得将有用的帖子标记为关闭你的帖子的答案，然后如果你有新的问题就开始一个新的帖子。

In a class library that targets Windows 8.1 and Windows Phone 8.1 I have the following code, where the GetCustomAttributes returns IEnumerable<Attribute>.

int amountOfParams = constr[x].GetCustomAttributes(true).Count();

In my universal app I imported the library in the Windows and in the Windows Phone project if I open the class here I see that the same line returns an Object[].

So I tried to fix it with preprocessor directives like this:

#if WINDOWS_PHONE_APP
            int amountOfParams = constr[x].GetCustomAttributes(true).Length;
#else
            int amountOfParams = constr[x].GetCustomAttributes(true).Count();
#endif

But this doesn't work it always chooses the else, I also noticed that in VS2013 update 4 the drop down box that specifies how to view the code only lists (Miscellaneous Files).

Is there a way to fix this problem?

With kind regards,

EpicParser

解决方案

Make sure that your project contains the conditional compilations symbols NETFX_CORE and WINDOWS_APP under Project->Properties->Build->General.

Please refer to the following links for more information:
http://www.codeproject.com/Articles/845485/Conditional-Compilation-in-Universal-Apps
http://stackoverflow.com/questions/25975391/the-if-windows-app-directive-never-runs-in-a-universal-windows-app-solution

 

Please also remember to mark helpful posts as answer to close your thread and then start a new thread if you have a new question.

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