In F# you can write an extension method like this: Whilst this will work perfectly fine in your F# code, the extension method will not be visible to any C# code using the FileInfo type because F# and C# compiles extension methods differently. To make C#-compatible extension methods in F#, here’s what you need to …
Cranked these out last night, hope you find it useful too 1: public static class SerializationExtensions 2: { 3: private static readonly ConcurrentDictionary<Type, XmlSerializer> XmlSerializers = 4: new ConcurrentDictionary<Type, XmlSerializer>(); 5: 6: private static readonly ConcurrentDictionary<Type, DataContractJsonSerializer> JsonSerializers = 7: new ConcurrentDictionary<Type, DataContractJsonSerializer>(); 8: 9: private static readonly JavaScriptSerializer JavaScriptSerializer = new JavaScriptSerializer(); 10: 11: …
Extension Methods – Serialize/Deserialize as Json/XML Read More »
1: /// <summary> 2: /// Parses a string as a short 3: /// </summary> 4: public static short ParseShort(this string str, bool throwOnOverflow = true) 5: { 6: return str.ParseAsStruct(Convert.ToInt16, throwOnOverflow); 7: } 8: 9: /// <summary> 10: /// Parses a string as an ushort 11: /// </summary> 12: public static ushort ParseUshort(this string str, …
Extension Methods – Helpful parse methods for string Read More »
As you know, the ExpandoObject class implements the IDictionary<string, object> interface, so if you have an ExpandoObject you can easily cast it to an IDictionary<string, object> but there’s no built-in way to easily do the reverse. Luckily, I came across a very useful extension method today which converts an IDictionary<string, object> into an ExpandoObject, which …
IDictionary<string, object> to ExpandoObject extension method Read More »
Ever tried to use IEnumerable<T>.Sum on an array of unsigned long integers? Well, you can’t, because the Sum method has not been implemented for ulong or ulong?, so to fill in the gap here’s the extension methods you need using more or less the same code as the existing Sum methods: I used some custom …
Extension methods to sum IEnumerable(ulong) and IEnumerable(ulong?) Read More »
Another good question on StackOverflow, and even better answer from Steven (miles better than what I managed!), the question was around how to implement an extension method to check whether a certain method has a particular attribute applied to it, mainly for the purpose of unit testing. In his answer, Steven provided a couple of …
Another gem I found on StackOverflow today (I’ve been spending a lot of time there these last couple of days..), this time in the form of a question on how to append or prepend a single value to an IEnumerable<T>. Greg provided an elegant solution to this particular problem, and here’s his answer: Which you …
Enumerable.Append and Enumerable.Prepend extension methods Read More »
As you most likely know already, there are ToLower() and ToUpper() methods on the String class in C#, but a method to convert a string to ‘Title Case’ is sadly missing. Support for this useful conversion exists in the TextInfo class which has a ToTitleCase method, but you can’t instantiate a new instance of the …
.Net Tips – String.ToTitleCase() extension methods Read More »
Serialization Overhead When it comes to serializing/deserializing objects for transport through the wire, you will most likely incur some overhead in the serialized message though the amount of overhead varies depends on the data interchange format used – XML is overly verbose where as JSON is much more light-weight: XML representation: JSON representation: {“MyProperty”:10} As …
Extension methods for compressing/decompressing string Read More »
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