c# get first 3 characters of a string code example

Example 1: c sharp substring

// To get a substring of a string use 'Substring()'
// The first value is the index of where to start and the second
// value is the lenght of the substring.
string str = "Hello World!"
str.Substring(3, 4) // Output: "lo W"
  
// If you only give a starting index, it will go until the end
str.Substring(3) // Output: "lo World!"

Example 2: substring c# after character

var result = str.Substring(str.LastIndexOf('-') + 1);