I was implementing linear search for search in a collection then i thought why not use binary search, for which i had to use sorting. Although I can implement them, but I would like to know where does they exists in .net itself. I hope it would be present in .Net. ...
How come anonymous functions works as arguments on methods, but not in constructor arguments? If I create a List<string>, it has a Sort method with the following signature: public void Sort(IComparer<T> comparer) where the following works: List<string> list = new List<string>(); list.Sort( (a,b) => a.CompareTo(b) ); SortedSet ha...
I've seen this pattern in Enumerator. It makes sure the collection haven't been altered while enumerating over the items. public class Versioned { internal int version = 0; public void ThisBreaksVersion() { version++; } } public class WorksOnVersioned { private readonly int version; private readonly Ver...
Hello, I'm looking for how to recorgnize some server (windows in my case) network configuration (information we obtain using netstat dos command). I have the login and password of the target (server), and I developp with visual studio 2005 (c# or vB.NET doesn't matter). (Can I use WMI for that ???) Regards, ...
Possible Duplicate: What is the best algorithm for an overridden System.Object.GetHashCode? As I understand it, there's a recommendation to override the base type GetHashCode() for my own value types. I have a hard time finding good resources on the actual how to implement a good hash code scheme for different kinds of value t...
This must've have been asked before but I couldn't locate it. In a mixed code project (VB and C#) we were debugging some old Visual Basic code where a statement as follows could be found: If Request.Params("xxx") <> "" Then 'do something I considered this a bug as Request.Params could be null, in which case the statement would've b...
I was thinking to use Tuple class to store 2 integer information (StartAddress, EndAddress) I need in my program. But I discover that Tuple items are ReadOnly, so if I need to set a value for an item, I need to re-instantiate a Tuple. What is the reason behind this design decision? ...
Currently I'm writing a unit test for a component that does datetime specific validation. I have created IDateTimeProvider interface, that serves as a DateTime.UtcNow wraper and business objects use interface rather than DateTime directly. It seems that DateTime is a bit overloaded and should be split into a value and a thing that gets t...
I am using ReadProcessMemory in C# output is bytes[]. I want to covert this to string. How to do that? My code is below.. !ReadProcessMemory(appProcess.Handle, mbi.BaseAddress, buffer, mbi.RegionSize, ref nRead)) { int lastError = Marshal.GetLastWin32Error(); if (lastError != 0) throw new ApplicationException(string.For...
I'm building an app to manage employees' holiday requests, with Windows Workflow Foundation handling the core logic. I want to develop a simple workflow that will be started when a request is created, and perform tasks based on whether the request is approved or rejected. Once the request is created, the workflow sends out notification ...
I see that Region.IsVisible(rectangle) is not working as I expect. So, is me who expect that should not, or is the method that is doing not that it should ??! I have the following situation: And the following code: private void Form1_Paint(object sender, PaintEventArgs e) { Point[] points1 = new Point[] { new Point(50, ...
Hi, I have the following code which bypass the proxy server for local machine and then send a WebRequest. System.Net.HttpWebRequest Request; System.Net.WebResponse Response; System.Net.CredentialCache MyCredentialCache; Edit 1 //System.Net.WebProxy proxyObject = new...
In Visual Studio, there's a debugger setting labelled "Break on exceptions" or something like that. It drops into the debugger whenever an exception is raised (that is, on the first pass of the two pass exception mechanics), regardless of whether the exception will be handled or not. This is a very useful feature, and I try to keep it ...
Hi all, I have created an exe with some methods in it (ref example exe below). using System; using System.Collections.Generic; using System.Text; namespace SampleRef { public class Program { static void Main(string[] args) { } } public class Sample { public Sample(int count) ...
Working on a number of legacy systems written in various versions of .NET, across many different companies, I keep finding examples of the following pattern: public void FooBar() { object foo = null; object bar = null; try { foo = new object(); bar = new object(); // Code which throws exception. ...
Hi, I'm learning TDD with VB.NET and NUnit. I want to know what's the best thing to do: Use a lot of Assert methods inside of a test method or use a assert per method? This is my code. Thank you. Imports NUnit.Framework <TestFixture()> _ Public Class CalculatorTest <Test()> _ Public Sub TestAdd() Dim calculator As Calculator = New...
When designing an rdlc report using the VS 2010 report designer, report items such as charts demand a dataset. After designing the report, I add a ReportViewer to a webform, and it demands all of its own datasources. How do I hook up the DataSet I have coupled to the report without duplicating the DAL functionality in the viewer page? ...
Given a (current) project that implements a 2-tier architecture with a well-separated on-tier business layer following the typical generic DAO architecture as pioneered by Bill McCafferty on CodeProject and explained briefly in chapter 10 of NHibernate in Action. This project must be moved to do CRUD operations and business logic throug...
I have an Oracle 9i DB installed at remote IBM AIX server. I want to connect to it using C# app (.Net) Presently, I am able to connect to it using SQL Developer and SQLPlus from my machine. But when I try to connect from Visual Studio App, using System.Data.OracleClient. private static string GetConnectionString() { ret...
Application works fine and connects every single time from any machine except the server, where it's supposed to be deployed :/ When run on the server it manages to connect once in like 20 or something attempts. Judging on the funky symptoms, I suspect it to be some kind of a network configuration related issue (as in some randomly lost ...