Was going through some legacy code recently and found a big for loop that had multiple switch statement inside. So being that I hate something that is fairly large, every method should be small and concise, I went along to refactor it to SRP. This code is generic so you might see something like this […]
Category: .NET
Here is some poorly written code that I had to review today and modify (i.e refactor). I have removed the domain of the code and renamed the variables, so that it remains anonymous, but the just of the code is still intact.
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var itemCount = 0; if (users.ShoppingCart != null && user.ShoppingCart > 0) { foreach (var cart in user.ShoppingCart) { if (cart.Items != null && cart.Items.Count > 0) { foreach (var item in cart.Items) { itemCount++; } } } } |
Lets go through the inner loop of the code first. First the […]
Here is a quick way to detect if a text is in Canadian Aboriginal Syllabic in C#. It is just an extension method that would detect if your string is in that range by using regex.
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public static bool IsInuktitut(this string input) { if (string.IsNullOrEmpty(input)) { return false; } //http://msdn.microsoft.com/en-us/library/20bw873z.aspx //look at section Supported Named Blocks const string pattern = @"\p{IsUnifiedCanadianAboriginalSyllabics}"; Match match = Regex.Match(input, pattern); return match.Success; } |
Enjoy.
Here is a nice little code I did recently, where the Command Pattern is used with a notification observer like pattern. First of the Command Pattern, a simple interface for task with an execute method
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public interface ITask { /// <summary> /// Execute the task /// </summary> void Execute(); } |
Then the notification interface, with 2 methods, one when it started and one when its complete and the event […]
So was hacking a new installer and wanted to display the data link properties dialog, for building a connection string. Here is what I have found out by playing with it. One has to add the reference to ADODB.DLL (from .NET reference) and Microsoft OLE DB Service Component 1.0 Type Library from the COM tab […]
So I had this issue at work had to install on xp machine, dont ask why but just had to 🙂 and the error was NET 4, Visual Studio 2010 install fails on XP SP3 machine “Fatal error during installation” Thus I was stuck installing Visual Studio 2010, I went and downloaded .net 4 standalone […]
Thanks to everyone who came out for the Ottawa .Net Community talk yesterday on WatiN , SpecFlow, BDD, WebDriver, I had a blast. I would like to thank everyone who came out for the talk. Here is my presentation WatiN – Web Application Testing on Prezi You can find the code on github https://github.com/taswar/ODNC-WatiN-And-SpecFlow-Demo-Code Additional […]
In this last part of the series I wanted to talk about how to register automapper at startup of your web application, in doing so it would help speed things up with automapper. There are many ways to do it, the easiest way is to just have a method inside Global.asax.cs file in your Application_Start […]
In this part I will show how we can use a customer value formatter (CustomFormatter) to format our mapped data into single “Number of Order:” and plural “Number of Orders:”. First the Domain and Dto (data transfer object)
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//Domain public class Order { public string OrderNo { get; set; } public Customer Customer { get; set; } public DateTime PurchaseDate { get; set; } public IEnumerable<OrderItems> LineItems { get; set; } public bool ShipToHomeAddress { get; set; } public decimal GetTotal() { return LineItems == null ? 0 : LineItems.Sum(x => x.GetTotalPrice()); } public Guid InternalId { get; set; } } //Dto public class NumberOfOrderDto { public string CustomerName { get; set; } public string NumberOfOrders { get; set; } } |
Now we will introduce a CustomResolver and Formatter, for the Formatter we are inheriting from IValueFormatter […]
In Part 5, we will use a powerful feature that automapper allows us, which is CustomResolver. Lets look at our Domain Object which contains a boolean field called ShipToHomeAddress, what we will do is map those boolean to a string value with “Yes” or “No”.
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public class Order { public string OrderNo { get; set; } public Customer Customer { get; set; } public DateTime PurchaseDate { get; set; } public IEnumerable<OrderItems> LineItems { get; set; } public bool ShipToHomeAddress { get; set; } public decimal GetTotal() { return LineItems == null ? 0 : LineItems.Sum(x => x.GetTotalPrice()); } public Guid InternalId { get; set; } } //DTO public class OrderShipDto { public string ShipHome { get; set; } public string CustomerName { get; set; } } |
For our mapping code we will introduce CustomResolver class […]
