clr

问题 Has anybody here ever used ngen? Where? why? Was there any performance improvement? when and where does it make sense to use it? 回答1: Yes, I've seen performance improvements. My measurements indicated that it did improve startup performance if I also put my assemblies into the GAC since my assemblies are all strong named. If your assemblies are strong named, NGen won't make any difference without using the GAC. The reason for this is that if you have strong named assemblies that are not in

问题 Although I know the terms I used to forget the differences sometimes...So just to maintain a place for reference...Thanks all for your answers. 回答1: ASP, Active Server Pages (now referred to as ASP Classic) is a server-side scripting environment that predates .Net and has nothing to do with it ASP pages are usually written in VBScript, but can be written in any language supported by the Windows Scripting Host - JScript and VBScript are supported natively, with third-party libraries offering

问题 i saw the System.Data.Common.CommandTrees.ExpressionBuilder.EdmFunctions static class accidently, that contains a set of extension methods on System.Data.Common.CommandTrees.DbExpression , like AddDays, Concat,.... which bring back System.Data.Common.CommandTrees.DbFunctionExpression as return type, this static methods if needs to an argument, they only accept a System.Data.Common.CommandTrees.DbExpression type, in addition i look over the System.Data.Common.CommandTrees.DbExpression and i

问题 How you use technique described here to work with C structures from .Net? Ofcourse I need a code example - on 3 parts: C declaring parts, C++ wrapping around C and C# acsessing. So what I wonder Is C structture A has as one of its params structure B which consists of at least 2 types one of which is pointer to some variable C which should be declared. We whant to have access from C# .Net to all A and B structures and its params and that variable C. How to do such thing? 回答1: Suppose these are

问题 How you use technique described here to work with C structures from .Net? Ofcourse I need a code example - on 3 parts: C declaring parts, C++ wrapping around C and C# acsessing. So what I wonder Is C structture A has as one of its params structure B which consists of at least 2 types one of which is pointer to some variable C which should be declared. We whant to have access from C# .Net to all A and B structures and its params and that variable C. How to do such thing? 回答1: Suppose these are

问题 I'm trying to write a DynamicMethod to wrap the cpblk IL opcode . I need to copy chunks of byte arrays and on x64 platforms, this is supposedly the fastest way to do it. Array.Copy and Buffer.BlockCopy both work, but I'd like to explore all options. My goal is to copy managed memory from one byte array to a new managed byte array. My concern is how do I know how to correctly "pin" memory location. I don't want the garbage collector to move the arrays and break everything. SO far it works but

问题 By default the type modifier for every member in a class is a private, even the Main() function type modifier is private. How does the CLR call the main method which is not visible to the outside world? 回答1: Thats not true. It has to be public. For e.g. public static void Main() . EDIT: Here is what I found & learned today, on why Main need not be public . http://social.msdn.microsoft.com/forums/en-US/csharpgeneral/thread/9184c55b-4629-4fbf-ad77-2e96eadc4d62/ 回答2: The CLR does not care about

问题 Excerpt from Eric Lippert's Blog about What the meaning of "is", is: A common conception of types is that a type is a set [...] of values, and that assignment compatibility is merely checking to see if a given value is a member of the necessary set. But that’s not the case in C#. The counter example he gives is that null is string returns false , but string b = null is totally fine by the C# compiler. Perhaps this is a silly question, but what is a better way to define the idea of "type" in a

问题 Excerpt from Eric Lippert's Blog about What the meaning of "is", is: A common conception of types is that a type is a set [...] of values, and that assignment compatibility is merely checking to see if a given value is a member of the necessary set. But that’s not the case in C#. The counter example he gives is that null is string returns false , but string b = null is totally fine by the C# compiler. Perhaps this is a silly question, but what is a better way to define the idea of "type" in a

问题 On Windows7 I have a python script that uses Windows DLLs, using the .NET Common Language Runtime (CLR). An error occurs inside one of the used DLL, but the standard Python debugger only debugs on the Python code level (and not the DLL). How can I debug what is going on inside the DLL(s)? 回答1: If you have Microsoft Visual Studio available, 1) open the Visual Studio project that your DLL is part of (or create a new project). 2) If you have set up your DLL for debugging (you've built it with