I have a simple messaging system that up till now uses file based storage. Because the number of users of the system is increasing gradually I would like to switch over to database based storage. In code the message server maintains a list of users (with their credentials) and a list of messages. A Message object has as its main fields a...
I am starting out with WPF and am surprised at how completely different it is from anything I have done before, there is a lot to take in. Can anyone recommend stuff that is worth knowing up front that will make life easier when it comes to developing a WPF app? Thanks in advance. ...
Out of curiosity i disassembled mscorlib.dll to check the implementation of System.Object class. I found something weird in that. 1). public class Object { ... protected override void Finalize(){} ... } How come a base class has an overriden method in it? 2) public class Employee { public void InstanceMethod() { ...
Profiling my C# application indicated that significant time is spent in List<T>.AddRange. Using Reflector to look at the code in this method indicated that it calls List<T>.InsertRange which is implemented as such: public void InsertRange(int index, IEnumerable<T> collection) { if (collection == null) { ThrowHelper.Throw...
I have two classes, which have one to many relation between them. When I use s#arp to return lists of these tow classes, everything is ok. But after I try to convert these two lists to Json format, I get a "circular reference" exception. I have search this kind of exception on the web, and find it is an common question. So, may I as...
Hi all, I was wondering how you use your ddd model within a web application. Within Eric Evan Cargo application there's the Cargo class which contains the value object Itinerary. Within Itinerary is a collection of Legs, again a value object. All value objects hide the surrogate id to the outside world. So when using this domain model,...
I'm working on a project where I'm building a byte array that's almost like a serialization of the object graph. Each class is responsible for writing out it's own data, so I'm thinking about using a BinaryWriter and pass that instance around to my child objects and let them serialize themselves into this instead of creating temporary bu...
I have 5 testmethods that test the functionality of a PasswordManager object.I use the built in test engine of visual studio 2008. This manager can make use of two Dependencies: an XMLStorageManager or a DbStorageManager. The Dependency is set in the Passwordmanager's constructor. How can I run the tests twice with the only difference th...
I have a cipher text I encoded with the AesManaged .Net classes. plaintext: "string" password: "password" this is the c# code I use to encrypt: private AesManaged AESCipher; private String Password; public AES(String Password) { this.AESCipher = new AesManaged(); this.AESCipher.Mode = CipherMode.CBC; ...
This is my code: <html> <head> <title>scoreboard</title> <script> function calculate() { var sum=0; var total=0; for (var i=0; i < document.questions.group1.length; i++){ if (document.questions.group1[i].checked){ sum = parseInt(document.questions.group1[i].value) total = parseInt(total + sum);}} for (var i...
Hi guys, I am kind of stumped with this one, and was hoping I could find some answers here. Basically, I have an ASP.NET application that is running across 2 servers. Server A has all of the business logic/data access exposed as web services, and Server B has the website which talks to those services (via WCF, with net.tcp binding). T...
Specifically, this is for a .NET 2.0 desktop application. Currently we require the user to manually go through the update process via our website. What are the best ways of doing a silent or automatic upgrade of the client behind the scenes? Thanks! ...
Hey Everyone, Working on getting a legacy app up and running again for work. I'm getting an error at run time that I can't create an activeX control. The suspect call is oSQL = CreateObject("SQLDMO.SQLServer2") I did a bit of googling and found that SQLDMO should be in a SQLDMO.dll. I've got that DLL referenced in my project but it i...
I've downloaded the official "schema of xsd" from http://www.w3.org/2001/XMLSchema.xsd. I saved it locally and tried to validate with this code: var sc = XmlSchema.Read(new FileStream(@"c:\temp\xsd.xsd", FileMode.Open), validate); sc.Compile(validate); It failed with an exception that it cannot find some DTD. Question number 1: Why ...
Back to the basics... For reference types, one can do this: SomeType someObject = firstObject as SomeType; if (someObject == null) { // Handle the situation gracefully } else { // Do stuff } For value types, my understanding is that we have implicit conve...
Anyone have any recommendations for a non-relational/partially-relational DB with a .NET API? ...
I am looking for an English grammar checker engine (not spell checker) to be used on server side in .NET and Windows. I found one at wintertree-software.com but it's over $1000. Found these resources 1, 2 on SO. I prefer to use a ready to use engine. Feed it sentences, paragraph or text documents and it spits out grammar suggestions as ...
I have two integers that I want to divide to get a percentage. This is what I have right now: int mappedItems = someList.Count(x => x.Value != null); int totalItems = someList.Count(); (int)(((double)mappedItems /(double) totalItems) * 100) This gives the right answer. But that is a lot of casting to do something as simple as get a ...
Possible Duplicate: How do I pronounce => as used in lambda expressions in .Net Sometimes, when helping another programmer write code, I dictate what I want them to type in. Sometimes this can be a frustrating exercise until the programmer gets used to how you verbalize code (i.e. "assign 5 to x" versus "x equals 5"). One thin...
Is there a simple utility/GUI application for generating CASPOL commands? ...