How to Encode a String for a URL in C#

In C#, you can format an integer with commas (thousands separator) using ToString with a format specifier.

int number = 1234567;
string formattedNumber = number.ToString("N0"); // "1,234,567"
Console.WriteLine(formattedNumber);

Explanation:

"N0": The "N" format specifier stands for Number, and "0" means no decimal places. The output depends on the culture settings, so in regions where , is the decimal separator, you might get 1.234.567.

Alternative:

You can also specify culture explicitly if you need a specific format:

using System.Globalization;

int number = 1234567;
string formattedNumber = number.ToString("N0", CultureInfo.InvariantCulture);
Console.WriteLine(formattedNumber); // "1,234,567"

String interpolation, introduced in C# 6.0, provides a more readable and concise way to format strings compared to traditional concatenation (+) or string.Format(). Instead of manually inserting variables or placeholders, you can use the $ symbol before a string to directly embed expressions inside brackets.

string name = "Walt";
string job = 'Software Engineer';

string message = $"Hello, my name is {name} and I am a {job}";
Console.WriteLine(message);

This would produce the final output of:

Hello, my name is Walt and I am a Software Engineer

String interpolation can also be chained together into a multiline string (@) for even cleaner more concise results:

string name = "Walt";
string html = $@"
    <div>
        <h1>Welcome, {name}!</h1>
    </div>";

Enums are a great way to define a set of named constants in C#, but what if you need to iterate over all values dynamically? You can use** Enum.GetValues()** to loop through an enum without hardcoding values.

enum Days { Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday }

foreach (Days day in Enum.GetValues(typeof(Days)))
{
    Console.WriteLine(day);
}

This would output the following:

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday

Alternative: Using Enum.GetNames() If you only need the string names, use Enum.GetNames() instead:

foreach (string name in Enum.GetNames(typeof(Days)))
{
    Console.WriteLine(name);
}