Artificial intelligence will spur economic growth and create new wealth. Machines that “think” like humans will help solve huge problems, from curing cancer to climate change. Yet millions of human workers will need to retrain, as robots make their existing jobs redundant. These are the contrasting messages provided by the world’s leading technologists during the…
In this tutorial, I use several techniques and tools. I use Microsoft Visual Studio 2015 and the latest version of all components. ASP.NET MVC: Microsoft’s modern web application framework. As the name says, it pushes you to use the MVC (model view controller) software design principle. ASP.NET Web API: Web API and MVC are used…
Some people asked me the different between those two following code: Code 1 try { … } catch (Exception ex) { throw ex; } Code 2 try { … } catch (Exception ex) { throw; } I don’t think there is ever a good reason to write catch (Exception e) { throw e; }. This…
Very often I found this problem and now I got a solution! I’ve compared some methods and I was decided which one. But I verified time (if you want to know how, read this post) of them and the final solutions are: static string TruncateLongString(string str, int maxLength) { return str.Substring(0, Math.Min(str.Length, maxLength)); } or…
I found a simple code to know the execution time of a method. First of all you have to import the following namespace: using System.Diagnostics; Then you use Stopwatch to know the execution time. Stopwatch sw = Stopwatch.StartNew(); DoSomeWork(); sw.Stop(); Console.WriteLine("Time taken: {0}ms", sw.Elapsed.TotalMilliseconds); Happy coding!
You can convert a string to hex or vice-versa with this methods. Example for real world; You want set / get some data from URL, but if your data has some special chars (like ^$ %) it’ll be problem… In this case, you can use this methods and convert your data to hex. public string…
I’m looking for an answer to my regular expresssion problem in c#. I’m looking for a match on a specific postcode format and have run into problems. Here you can find my solution with the regex pattern. C# public bool IsPostCode (string postcode) { return ( Regex.IsMatch(postcode, “(^[A-PR-UWYZa-pr-uwyz][0-9][ ]*[0-9][ABD-HJLNP-UW-Zabd-hjlnp-uw-z]{2}$)”) || Regex.IsMatch(postcode, “(^[A-PR-UWYZa-pr-uwyz][0-9][0-9][ ]*[0-9][ABD-HJLNP-UW-Zabd-hjlnp-uw-z]{2}$)”) || Regex.IsMatch(postcode,…
Did you received this error when you try to login in your Owin app with Facebook? App Not Set Up: This app is still in development mode, and you don’t have access to it. Switch to a registered test user or ask an app admin for permissions. Solution Go to https://developers.facebook.com/ Click on the My…
We have an MVC project using OWIN Framework to allow our users to authenticate using Twitter. However starting today, we have been getting this exception when trying to authenticate: System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure. Thanks to the power of open source we can see that the thumbprints for the…
If you have problem returning dynamically drawn image from controller below informations may help. The task looks easy and should be achieved with this code: public ActionResult Image(string text) { //Create new image Image img = new Bitmap(100, 50); Graphics g = Graphics.FromImage(img); //Do some drawing Font font = new Font("Arial", 24); PointF drawingPoint =…
Register an app in the Microsot Account Developer Center Go to the Microsoft Account Developer Center and create a new application. After you have registered the application take note of the App ID and App Secret: Install the Nuget Package Install the Nuget Package which contains the Microsoft OAuth provider. Install-Package Microsoft.Owin.Security.MicrosoftAccount Register Provider Locate…
Windows 8 is about to get a lot less secure. After January 12, Microsoft will stop offering security patches for the three-year-old operating system. Users will have to upgrade to either Windows 8.1 or Windows 10 to keep receiving updates. As Ed Bott notes Windows 8 is an exception to Microsoft’s typical support lifecycle policy,…
In less than a week Microsoft will formally end support for versions 4.0, 4.5, and 4.5.1 of the .NET Framework. Users should upgrade to a later version such as the slightly incompatible .NET 4.5.2. Before we move on, it should be noted that this only affects the 4.x series. The much older .NET 3.5 SP…
Microsoft is ending support for Internet Explorer 8, 9, and 10 next week on January 12th, releasing a final patch encouraging users to upgrade to one of the company’s more recent browsers. The end of support means that these older versions of Internet Explorer will no longer receive security updates or technical support, making anyone…
You might have missed to register your Interface and class (which implements that inteface) registration in your code. e.g if the error is "The current type, xyznamespace. Imyinterfacename, is an interface and cannot be constructed. Are you missing a type mapping?" Then you must register the class which implements the Imyinterfacename in the UnityConfig class…
Microsoft CEO Satya Nadella has explained in an interview with BuzzFeed why the company is not concerned about the market share of its mobile operating system, which is about 1.7% globally. He said the company would be doing a “disservice” to itself by measuring its success solely by market share. “If you think of this…
