c sharp index of substring
// To find the index of the first substring in a string use
// 'IndexOf()'
string str = "Hello World!"
str.IndexOf("o"); // Output: 4
// You can give a starting index and a length to search at
str.IndexOf("o", 6, 4); // Output: 7
// To find the last instance of a substring use 'LastIndexOf()'
str.LastIndexOf("o"); // Output: 7c# find substring in string
string fullName = "John Doe";
bool nameInFullName = fullName.Contains("John");
// nameInFullName is trueletter at index of string c#
string s = "hello";
char c = s[1];
// now c == 'e'c# check characters in string
errorCounter = Regex.Matches(yourstring,@"[a-zA-Z]").Count;Copyright © 2021 Codeinu
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