saving redis-cli command response to file using c#

Question

I am trying to bulk add keys to my redis server using type filename.txt | redis-cli --pipe. This works well and all data inserted successfully and i can see response in cmd window. but when tried with c# app then response file is always empty. here is code snippet.

Process.Start("CMD.exe", "/K type c:\\Users\\username\\Desktop\\file.txt | redis-cli -h 192.168.100.28 --pipe >result.txt");

Edit 1

Also tried the solution provide by @Grigory Zhadko it displays the output of echo command but not the redis-cli output.

        var process = new Process();
        process.StartInfo.FileName = "CMD.exe";
        process.StartInfo.Arguments = "/K type c:\\Users\\username\\Desktop\\file.txt | redis-cli -h 192.168.100.29 --pipe";
        process.StartInfo.RedirectStandardOutput = true;
        process.StartInfo.RedirectStandardInput = true;
        process.StartInfo.RedirectStandardError = true;
        process.StartInfo.UseShellExecute = false;
        process.Start();
        process.StandardInput.WriteLine("echo hello");
        process.StandardInput.WriteLine("exit");
        string output = process.StandardOutput.ReadToEnd();

Here is output of this.

D:\Projects\projectname\bin\Debug>echo hello
hello

D:\Projects\projectname\bin\Debug>exit