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问题 Any suggestions on getting the device interface type for a volume, given its drive letter (e.g. G:)? Specifically, am looking for a solution that doesn't depend on WMI. Thank you. 回答1: You can use GetDriveType to get the basic interface type(ie: removable device, CDROM, RAMDisk) for the drive letter, also see the final comment at the bottom of that page for a little more info on removable devices. Also check out SetupDiGetDeviceRegistryProperty and DeviceIoControl Her is the best example I

问题 When I go to the MSDN page for the SqlConnection class, it only shows examples in C# and VB. Why doesn't MSDN show a C++ example? I am particularly interested in how a C++ example would get around the lack of the using keyword in C++. 回答1: Hmmm... after reading What is the Managed C++ equivalent to the C# using statement it seems that the equivalent of: using (SqlConnection connection = new SqlConnection(connectionString)) { // SqlCommand and so... } is actually: { SqlConnection conn

问题 I am trying to create a web services client for Microsoft's MSDN service (MSTP Content Service). When I use my local IDE to generate the classes it is failing to parse the WSDL from Microsoft published at http://services.msdn.microsoft.com/ContentServices/ContentService.asmx?wsdl and so I tried validating it with a "neutral" validator (XMethods WSDL Validator) and the XMethods validator is saying it cannot parse it with no further significant information. I also tried the eXtc validator and

问题 I got a MSDN document for Array.removeAt() function. But when i trying it, I am getting this error : "Uncaught TypeError: Array.removeAt is not a function", var a = ['a', 'b', 'c', 'd', 'e']; Array.removeAt(a, 2); console.log(a); Why it's not working here? And is that is a wrong document? Edit: a.removeAt(a, 2); also not working. var a = ['a', 'b', 'c', 'd', 'e']; a.removeAt(a, 2); console.log(a); 回答1: There is no Array.removeAt() function in JavaScript. MSDN article is an out of date

问题 I was researching what std::bind is and what it's for (that may eventually be a different question) at MSDN: http://msdn.microsoft.com/en-us/library/bb982702.aspx And saw that the prototypes listed are: template<class Fty, class T1, class T2, ..., class TN> unspecified bind(Fty fn, T1 t1, T2 t2, ..., TN tN); template<class Ret, class Fty, class T1, class T2, ..., class TN> unspecified bind(Fty fn, T1 t1, T2 t2, ..., TN tN); Which confuses me for two reasons. 1) Last I checked, MSVC didn't

问题 NOTE: Charlie Calvert replied below that the 101 LINQ Samples have now been updated with correct code. The MSDN Visual C# Developer Center has a section called 101 LINQ Samples . I found this through a Bing search. The code for SelectMany - Compound from 1 is: public void Linq14() { int[] numbersA = { 0, 2, 4, 5, 6, 8, 9 }; int[] numbersB = { 1, 3, 5, 7, 8 }; var pairs = from a in numbersA, b in numbersB where a < b select new {a, b}; Console.WriteLine("Pairs where a < b:"); foreach (var pair

问题 How do I let Microsoft know about a problem I've found in one of their core library routines? Do they have a central repository to report these things? I am not a member of Microsoft Development Network (MSDN). Or should I even bother? 回答1: If it's a documentation bug (or if the documentation should call it out), you can get good results with the Feedback links in MSDN library. You can report bugs in Microsoft developer tools (among other things) by signing up at connect.microsoft.com. If you

问题 Could anyone point exactly where MSDN says thet every user stored procedure returns 0 by default if no error happens? In other words, could I be sure that example code given below when being a stored procedure IF someStatement BEGIN RETURN 1 END should always return zero if someStatement is false and no error occurs? I know that it actually works this way, but I failed to find any explicit statement about this from Microsoft. 回答1: It looks like once upon a time the return value may have meant

问题 I've started with importing contacts from live. Now I don't know what MS is thinking, but they seriously do overcomplicate everything they put their hands to. For my app, it's very important that I get a phone number. So important in fact, that should you not have a phone number, your contact is skipped. With my method I can't see any phone numbers. I assumed that it would be shown if I loop through each contact one by one, but alas, no love. Here is my method: $import_id = time(); $client_id

问题 I have a windows cpp app and I want to resolve paths relative to a specific directory without changing the current directory. This means I can't use GetFullPathName since it resolves paths relative to the current directory. Since this is a security sensitive issue I would rather not roll my own but use a sanctioned API. I looked around for a good answer, but couldn't find anything. Surely this is a common issue for web servers or multithreaded environments. How do other people do this? Any