c# dollar string format code example

Example 1: c sharp string interpolation

// To use interpolation in strings, put the name of the relevant
// variable between brackets {} and put a dollar sign $ in front
// of the string. This will tell C# to use interpolation.
double a = 3;
double b = 4;
Console.WriteLine($"Area of {a} and {b} is {0.5 * a * b}");

Example 2: c# format decimal as currency

private decimal? _amount;
// For nullable decimals
public string FormattedAmount
{
    get
    {
         return _amount == null ? "null" : string.Format("{0:C}", _amount.Value);
    }
}