Getting IP address.

Question

How to get and display the current viewer IP address in a text box?

Answer 1

You could use the HttpRequest.UserHostAddress property, or the REMOTE_ADDR key of the HttpRequest.ServerVariables collection, they are both string, and you only have to assign its value to your TextBox:

HttpContext.Current.Request.UserHostAddress;

or

HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];