Check out example codes for "making a list of chars in c#". It will help you in understanding the concepts better.

Code Example 1

string scentence = "Hi there"; // Defining a string to turn to characters

char[] charArr = scentence.ToCharArray() // Turns String to a list of characters
  
//The output of charArr would be:
//['H', 'i', ' ', 't', 'h', 'e', 'r', 'e']
  
  
/*
Answer by Ren Rawbone
*/

Code Example 2

string data = "ABCDEFGHIJ1fFJKAL";
List<char> datalist = new List<char>();
datalist.AddRange(data);

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