public string random1()
{
string fn = txtfname.Text;
string ln = txtlname.Text;
string strPwd = "";
Random rnd = new Random();
for (int i = 0; i <= 1; i++)
{
int iRandom = rnd.Next(0, fn.Length - 1);
strPwd += fn.Substring(iRandom, 1);
}
return strPwd;
i want pass 4 arguments in that method