clr

问题 This question already has answers here : Implicit typing; why just local variables? (6 answers) Closed 5 years ago . Why is it not possible to have implicitly-typed variables at a class level within C# for when these variables are immediately assigned? ie: public class TheClass { private var aList = new List<string>(); } Is it just something that hasn't been implemented or is there a conceptual/technical reason for why it hasn't been done? 回答1: Here's a blog post from Eric that explains the

问题 This post says that it is possible to turn off the CLR flag for an individual .cpp file. From the post: You can set /CLR on or off in each .cpp file individually. Turn it on for the whole project,. as you have done, then turn it off for the files containing only native (unmanaged) code. When you have the VC++ procject properties dialog open, you can still click on files/projects in the solution explorer to change the scope that you're working on. Click on the unmanaged .cpp file to set

问题 Due to the huge resources behind it, Javascript seems to rapidly becoming the scripting language of choice for applications, particularly those with a web front end. I have an application that requires extensibility both on the front and backend. Javascript, or a thin wrapper like CoffeeScript, seems like an excellent, future-oriented, choice. The problem I'm having with using Javascript as the target is interoperability with existing server side libraries. V8 requires custom C++ code. I'd

问题 Please consider the following code: public async Task<string> GetString() { //Some code here... var data = await A(); //Some more code... return data; } private async Task<string> A() { //Some code here.. var data = await B(); //manipulating data... return data; } private async Task<string> B() { //Some code here.. var data = await C(); //manipulating data... return data; } private async Task<string> C() { //Some code here.. var data = await FetchFromDB(); //manipulating data... return data;

问题 Please consider the following code: public async Task<string> GetString() { //Some code here... var data = await A(); //Some more code... return data; } private async Task<string> A() { //Some code here.. var data = await B(); //manipulating data... return data; } private async Task<string> B() { //Some code here.. var data = await C(); //manipulating data... return data; } private async Task<string> C() { //Some code here.. var data = await FetchFromDB(); //manipulating data... return data;

问题 Many methods in the BCL are marked with the [MethodImpl(MethodImplOptions.InternalCall)] attribute. This indicates that the "method is implemented within the common language runtime itself". What was the point of designing the framework in this way over having specified explicit CIL instructions that the runtime would be forced to implement? Ultimately, the attribute is creating contractual obligations for the runtime, but in a way that appears to me to be confusing and not immediately

问题 In C#, ref and out params are, as far as I know, passed by passing only the raw address of the relevant value. That address may be an interior pointer to an element in an array or a field within an object. If a garbage collection occurs, it's possible that the only reference to some object is through one of these interior pointers, as in: using System; public class Foo { public int field; public static void Increment(ref int x) { System.GC.Collect(); x = x + 1; Console.WriteLine(x); } public

问题 I'm a bit rusty, actually really rusty with my C++. Haven't touched it since Freshman year of college so it's been a while. Anyway, I'm doing the reverse of what most people do. Calling C# code from C++. I've done some research online and it seems like I need to create some managed C++ to form a bridge. Use __declspec(dllexport) and then create a dll from that and use the whole thing as a wrapper. But my problem is - I'm really having a hard time finding examples. I found some basic stuff

问题 I have gave up on creating a GUI directly from the windows API so I'm going to use forms. I would like to multithread my app and wrap the GUI in a class and put it in a separate thread. When I click a button, etc, it would change a value in a struct that will be read from the main thread. My problem is, when I compile my application I get an error with the linker. 1>Core.obj : error LNK2022: metadata operation failed (8013119F) : A TypeRef exists which should, but does not, have a

问题 I have been using Visual Studio 2008 quite long but lately I am getting this message when I am developing an application in C#: Common language runtime detected an invalid program This happens when I try to enter to the properties of a component (text masked box properties, tool box property etc..). But it really became a problem when I tried to launch an other solution that I downloaded from the Developer's 5 star program of Microsoft and it didn't allowed me to launch at all and just got