sequence number

Hai

Mr.Arunkumar

your code

public static string GetUniqueKey(int maxSize)

{

char[] chars = new char[62];

chars = "123456789".ToCharArray();

byte[] data = new byte[1];

RNGCryptoServiceProvider crypto = new RNGCryptoServiceProvider();

crypto.GetNonZeroBytes(data);

data = new byte[maxSize];

crypto.GetNonZeroBytes(data);

StringBuilder result = new StringBuilder(maxSize);

foreach (byte b in data)

{

result.Append(chars[b % (chars.Length)]);

}

return result.ToString();

}

private void auto()

{

txtInvoiceNo.Text = GetUniqueKey(8);

}

will automaticaly generate the number how can i change it into sequence number pls replay