using @ as Text for a link

Question

Hello All,

 

I am new to the language of C#. I am try to create a url 

 

public void button1_Click(object sender, EventArgs e)

{

string myip = textBox1.Text;

string password = textBox2.Text;

string username = textBox3.Text;

string at = "@";

string mystring = "http://" + at + username + password + myip + "/command.htm?key= ";

Process.Start(mystring);

 

The result of clicking the button is below in my browser: 

 

 http://adminpassword192.168.123.123/command.htm?key=

 

 How can I get the @ sign to show up in the url in the browser?

 

Any help would be greatly appreciated.

 

Kind