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public string CheckRandomCode()
{
Random rom = new Random();
char[] allcheckRandom ={'0','1','2','3','4','5','6','7','8','9',
'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W',
'X','Y','Z','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q',
'r','s','t','u','v','w','x','y','z'};
string Randomcode = "";
for (int i = 0; i < 4;i++)
{
Randomcode +=allcheckRandom[rom.Next(allcheckRandom.Length)];
Session["verty"] = Randomcode;
}
Session["CheckCode"] = Randomcode;
return Randomcode;
}
private static char[] constant =
{ 'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z', 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z' };
public static string GenerateRandom(int Length)
{ System.Text.StringBuilder newRandom = new System.Text.StringBuilder(constant.Length);
Random rd = new Random(); for (int i = 0; i < Length; i++)
{ newRandom.Append(constant[rd.Next(constant.Length-1)]); }
return newRandom.ToString().ToLower(); }