Yes, because Request.Form only works on the current page, where the Form has submitted the data on, once you're on the next page, you loose this Form property, you have a Request class, and you can call the Form data as an element of the Request itself.
string name = Request["username"];
Label1.Text = name;
You can run this code, and it will take the value of the username element from the Request.
Just make sure, the name of the input field is username