hey write only one method like
in your code you are using 2 different paths for that you have to declare global string like
string str=""
then assign the paths to this string
like
if (strlteo="mLTEODPath")
{
str="mLTEODPath ";
}
else if(strltm="mLTMeterPath ")
{
str="mLTMeterPath "
}
use str in below method
private void ReadFTPFile(string path)
{
ftp = new FTPOperations();
string str = ftp.ReadFromFtp(str+ path);
string[] strArr = str.Split(',');
Record pdata = new Record(strArr.ToList());
List<reading> lst = pdata.GetInstReaings();
GridView2.DataSource = lst;
GridView2.DataBind();
label1.Text = path;
}