Back button / Previous Page button in ASP.Net C#

Enabling Back Button in ASP.Net
There are different ways of doing it. I will just take you through two simple solutions.
First way is quite simple. A straight forward approach.
Declare a string variable public
static string goBackUrl = String.Empty;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
goBackUrl = Request.UrlReferrer.ToString();
}
}
protected void BackButton_Click(object sender, EventArgs e)
{
Response.Redirect(goBackUrl);
}
Second one is with View State.
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
GoBackURL = Request.UrlReferrer.ToString();
ViewState.Add("GoBackURL", GoBackURL);
}
else
{
GoBackURL = ViewState["GoBackURL"].ToString();
}
protected void BackButton_Click(object sender, EventArgs e)
{
Response.Redirect(BackPath, false);
}