c#
Convert an array to string
You can join your array using the following: Then you can output anyway you want. You can change the comma to what ever you want, a space, a pipe, or whatever.
Iif equivalent in C#
C# has the ? ternary operator, like other C-style languages. However, this is not perfectly equivalent to IIf(); there are two important differences. To explain the first difference, the false-part argument for this IIf() call causes a DivideByZeroException, even though the boolean argument is True. IIf() is just a function, and like all functions all … Read more
How to fix javascript .toFixed is not a Function error
toFixed() method formats a number. The current value is of type string and instead of arithmetic addition, string concatenation is happening. Convert those to number before adding: Change: To
Convert JSON String to JSON Object c#
JObject defines method Parse for this: You might want to refer to Json.NET documentation.
.NET Core vs Mono
What is the difference between .NET Core and Mono? I found a statement on the official site that said: “Code written for it is also portable across application stacks, such as Mono.” My goal is to use C#, LINQ, EF7 and Visual Studio to create a website that can be ran/hosted on Linux. Someone told … Read more
Get single listView SelectedItem
Usually SelectedItems returns either a collection, an array or an IQueryable. Either way you can access items via the index as with an array: By the way, you can save an item you want to look at into a variable, and check its structure in the locals after setting a breakpoint.
Func vs. Action vs. Predicate [duplicate]
The difference between Func and Action is simply whether you want the delegate to return a value (use Func) or not (use Action). Func is probably most commonly used in LINQ – for example in projections: or filtering: or key selection: Action is more commonly used for things like List<T>.ForEach: execute the given action for … Read more
C# function to return array
You’re trying to return variable Labels of type ArtworkData instead of array, therefore this needs to be in the method signature as its return type. You need to modify your code as such: Array[] is actually an array of Array, if that makes sense.
What should I use an IEnumerable or IList? [duplicate]
Generally speaking, you should try and use the least specific type that suits your purpose. IEnumerable is less specific than IList (IList implements IEnumerable) so unless you want something specific from IList (such as Count as you suggest, or perhaps Add, Delete, etc), I’d use IEnumerable. One benefit of remaining with IEnumerable is that you … Read more