How do I stop the Back and Refresh buttons from resubmitting my form?

Question

I am doing web development.

I have a page to do with credit card, which when user click \"refresh\" or \"Back\", the transaction will be performed one more time, wh

Answer 1

Just put this javascript on the html section of aspx page above head section

We need to put it on the html section of the page which we want to prevent user to visit by hitting the back button

Complete code of the page looks like this

<%@ Page Language="C#" AutoEventWireup="true"
CodeFile="Default.aspx.cs" Inherits="_Default" %>











This is First page 



Go to Second page




Go to Second Page

If you are using firefox then use instead of onload

If you want to disable back button using code behind of aspx page,than you need to write below mentioned code C# code behind

protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
string strDisAbleBackButton;
strDisAbleBackButton = "";
ClientScript.RegisterClientScriptBlock(this.Page.GetType(), "clientScript", strDisAbleBackButton);
} 

We can also achieve this by disabling browser caching or cache by writing this line of code either in Page_load event or in Page_Init event

protected void Page_Init(object Sender, EventArgs e)
{
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Cache.SetExpires(DateTime.Now.AddSeconds(-1));
Response.Cache.SetNoStore();
}

Doing this,user will get the page has expired message when hitting back button of browser

Demo is :