Shell script from asp.net

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C#

I am using Tahir Gal dll's for making an sftp connection to server and then tried to execute shell script

ssh.Prompt = "$";
               string commnd = "ls";
               //Remove terminal emulation characters
               ssh.RemoveTerminalEmulationCharacters = true;
               ssh.Write(commnd);
               string response = ssh.ReadResponse();

But i didn't get the correct response from server. Let's say there are 10 directories then only 5 are listed in the response. If i put another ssh.response then remaining 5 will be in that. So can anyone help me how to get the full response in one time?