How to generate a random string in C#

Question

Mahesh Chand · Answer

The following code snippet in Listing 4 generates a random string with a given size. The second parameter of the RandomString method is used for setting if the string is a lowercase string. // Generate a random string with a given size and case.    // If second parameter is true, the return string is lowercase    public   string  RandomString( int  size,  bool  lowerCase)   {   StringBuilder builder =  new  StringBuilder();   Random random =  new  Random();   char  ch;   for  ( int  i = 0; i  {   ch = Convert.ToChar(Convert.ToInt32(Math.Floor(26 * random.NextDouble() + 65)));   builder.Append(ch);   }   if  (lowerCase)   return  builder.ToString().ToLower();   return  builder.ToString();   }