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Why is the console window closing immediately once displayed my output?
I'm studying C# by following the guides in MSDN .
21 Answers
21
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Control cannot fall through from one case label
...lines under case "SearchBooks": have been executed, which isn't allowed in C#.
By adding the break statements at the end of each case, the program exits each case after it's done, for whichever value of searchType.
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source of historical stock data [closed]
... they have a ActiveX API which you can call with c++ code or C# or whatever in windows to get to your data.
– lukebuehler
Jun 23 '13 at 17:05
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How to add System.Windows.Interactivity to project?
...ression/2010/interactions with http://schemas.microsoft.com/xaml/behaviors
C# files – replace the usings in c# files “Microsoft.Xaml.Interactivity” and “Microsoft.Xaml.Interactions” with “Microsoft.Xaml.Behaviors”
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The cast to value type 'Int32' failed because the materialized value is null
... case, where there might be no elements and sql's SUM returns null whereas c# expect 0.
A more general approach is to use ?? which will be translated to COALESCE whenever there is a risk that the generated SQL returns an unexpected null:
var creditsSum = (from u in context.User
join ...
Convert System.Drawing.Color to RGB and Hex Value
Using C# I was trying to develop the following two. The way I am doing it may have some problem and need your kind advice. In addition, I dont know whether there is any existing method to do the same.
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JavaScriptSerializer - JSON serialization of enum as string
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Add the below to your global.asax for JSON serialization of c# enum as string
HttpConfiguration config = GlobalConfiguration.Configuration;
config.Formatters.JsonFormatter.SerializerSettings.Formatting =
Newtonsoft.Json.Formatting.Indented;
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How to play a sound in C#, .NET
I have a Windows application written in C#/.NET.
7 Answers
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Nullable type as a generic parameter possible?
...rk at all with reference types (e.g. GetValueOrNull<string>) because C# doesn't seem to like Nullable<(ref type)> like "string?". Robert C Barth & James Jones's solutions, below, seem much better to me if that's your need.
– bacar
Jul 28 '11 at ...
Assigning code to a variable
... think I fully embrace Lazy, in fact we use it a lot in F# (little less in C#) and we have learned the hard way that you have to be careful with it, esp. in respect with performance.
– Abel
Apr 30 '14 at 11:01
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