c# - Read For Learn

Displaying DateTime picker instead of Date picker in ASP .NET MVC 5.1/HTML 5 specific

Your requirements are pretty picky… Specifying the attribute Datatype for a field, will generate an input having as type the attribute specified. That’s why when you add [DataType(DataType.Date)], the input generated will be a date picker, but if you add [DataType(DataType.DateTime)], the input will be of type datetime, thus why you don’t get any picker displayed. Why? Because a few years ago, the browsers supporting … Read more

C# Dictionary get item by index

If you need to extract an element key based on an index, this function can be used: If you need to extract the Key where the element value is equal to the integer generated randomly, you can use the following function: Make sure that you added reference to System.Linq in your class. Side Note: The first element … Read more

C# Encoding a text string with line breaks

Yes – it means you’re using \n as the line break instead of \r\n. Notepad only understands the latter. (Note that Environment.NewLine suggested by others is fine if you want the platform default – but if you’re serving from Mono and definitely want \r\n, you should specify it explicitly.)

Error: “an object reference is required for the non-static field, method or property…” [duplicate]

You can’t access non-static members from a static method. (Note that Main() is static, which is a requirement of .Net). Just make siprimo and volteado static, by placing the static keyword in front of them. e.g.:

Unrecognized escape sequence for path string containing backslashes

You can either use a double backslash each time or use the @ symbol

Creating a List of Lists in C#

I seem to be having some trouble wrapping my head around the idea of a Generic List of Generic Lists in C#. I think the problem stems form the use of the <T> argument, which I have no prior experience playing with. Could someone provide a short example of declaring a class which is a … Read more

How to resize an Image C#

As Size, Width and Height are Get() properties of System.Drawing.Image;How can I resize an Image object at run-time in C#? Right now, I am just creating a new Image using:

is inaccessible due to its protection level

In your base class Clubs the following are declared protected club; distance; cleanclub; scores; par; hole; which means these can only be accessed by the class itself or any class which derives from Clubs. In your main code, you try to access these outside of the class itself. eg: You have (somewhat correctly) provided public … Read more

Windows service start failure: Cannot start service from the command line or debugger [duplicate]

Watch this video, I had the same question. He shows you how to debug the service as well. Here are his instructions using the basic C# Windows Service template in Visual Studio 2010/2012. You add this to the Service1.cs file: You change your Main() to call your service this way if you are in the … Read more

Using .Select and .Where in a single LINQ statement

In order for Enumerable.Distinct to work for your type, you can implement IEquatable<T> and provide suitable definitions for Equals and GetHashCode, otherwise it will use the default implementation: comparing for reference equality (assuming that you are using a reference type). From the manual: The Distinct(IEnumerable) method returns an unordered sequence that contains no duplicate values. … Read more

+ More