Type casting in C# changes a value from one type to another. Widening casts like int to long happen implicitly, while narrowing casts like (int)12.97 need explicit syntax and can lose data: that one returns 12, not 13. In this tutorial, I’ll build up a little US shipping calculator and use it to show type … Read more >>

A month-end sales report I built for a retail client in Columbus, Ohio kept dropping orders placed on October 31. The C# code that picked the month’s first and last day looked fine, but the boundary was wrong. Here’s the short answer for C#: the first day of the month is new DateTime(d.Year, d.Month, 1), … Read more >>

Exported order data almost never comes out clean. To remove the last character from a string in C#, call s.Remove(s.Length – 1), or on C# 8 and later use the range operator s[..^1]. Both return a new string and leave the original alone. In this tutorial, I’ll answer the classic C# remove last character from … Read more >>

Turning 42 into 00042 takes one call in C#: “42”.PadLeft(5, ‘0’) for a string, or 42.ToString(“D5”) for an int. Both give you a five-character result with zeros in front. In this tutorial, I’ll show every way I use to add C# leading zeros: PadLeft, the D and 00000 formats, interpolation, negative numbers, values longer than … Read more >>