Maintain values on Browser Back button : The Official Microsoft ASP.NET Forums

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Maintain values on Browser Back button

Jan 02, 2013 02:15 AM|LINK

Hi Friends

i have requirment where i want to maintain all values enter by user in textbox will be maintain even if user navigate to other pages.eg.

User has enter data one quote 1 page and move to quote 2 and if he click on browser back button i want to miantain all data enter by user on quote1 and want to assign to appropirate control

please help me

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Re: Maintain values on Browser Back button

Jan 02, 2013 02:34 AM|LINK

On your ScriptManager, you need to set EnableHistory="true". Then, on the buttons that change from page1 to page 2 (to print page #3), you have to invoke ScriptManager.GetCurrent(Page).AddHistoryPoint("KeyName", value);

This saves the back button history state.

Now you have to override the OnNavigate event of the ScriptManager (or ScriptManagerProxy if your ScriptManager is in a MasterPage). When navigating, you have to restore the user's previous state manually.

The default behavior of the back button is what you are seeing -- it goes to the previous URL loaded in the browser. When you are using UpdatePanels, this URL doesn't change.

There are a few tutorials about this, here is one: http://geekswithblogs.net/ranganh/archive/2008/11/17/enabling-the-browserrsquos-back-button-for-grid-view-asp.net-ajax.aspx

You can also google against ScriptManager, EnableHistory, AddHistoryPoint, and OnNavigate.

since the SP1 update for .NET 3.5 you have the History control for AJAX. This was specifically crafted for this task:Introduction to ASP.NET AJAX History.

http://quickstarts.asp.net/Futures/ajax/doc/history.aspx

http://weblogs.asp.net/brijmohan/archive/2008/09/11/using-asp-net-3-5-history-control-with-asp-net-2-0.aspx

http://www.nikhilk.net/BackButtonSupport.aspx

Chetan Sarode
Senior Software Engineer,
Approva Systems Pvt Ltd, Pune, India.

Marked as answer by Mark - MSFT on Jan 21, 2013 05:11 AM

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Nikhil86

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70 Points

65 Posts

Re: Maintain values on Browser Back button

Jan 02, 2013 03:35 AM|LINK

Thanks a lot for reply.

Is there any way we can force the page to load from server and not from cache when user click on back button.

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Nikhil86

Member

70 Points

65 Posts

Re: Maintain values on Browser Back button

Jan 02, 2013 03:36 AM|LINK

Also i have checked the post provided by you it will used for only 1 or 2 control.

but on my page i have 50-80 control how i can achive that do i need to add indidual control to view state.

Thanks

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sukanta

Member

459 Points

130 Posts

Re: Maintain values on Browser Back button

Jan 02, 2013 04:57 AM|LINK

hi...

u can do this stuff using VIEW STATE.... use this statemanagement techniq for solve the issue

eg

http://asp-net-example.blogspot.in/2009/01/aspnet-viewstate-example-how-to-use.html

thanks....

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priyankab

Member

2 Points

25 Posts

Re: Maintain values on Browser Back button

Jan 02, 2013 11:41 AM|LINK

Is it possible to maintain data without server postback?

I mean i started with Quote1 page >> Quote 2 .

Filled all data on Quote 2 page then pressed browser back button edited some data on quote 1 & then come back to quote 2....

So Can we maintain all data i entered previously.??

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Nikhil86

Member

70 Points

65 Posts

Re: Maintain values on Browser Back button

Jan 05, 2013 05:10 AM|LINK

Hello Friend

Any help the above solution is not work for me

HttpContext.Current.Response.Cache.SetExpires(DateTime.UtcNow.AddDays(-1));
            //    HttpContext.Current.Response.Cache.SetValidUntilExpires(false);
            //    HttpContext.Current.Response.Cache.SetRevalidation(HttpCacheRevalidation.AllCaches);
            //    HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
            //    HttpContext.Current.Response.Cache.SetNoStore();

line if code has been written on page load event even though page is not loding from its says page expiry message.

do i need to call this code in some other page event like page init or somehting please help me soon.

Niks

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MahadTECH

Star

8976 Points

1659 Posts

Re: Maintain values on Browser Back button

Jan 05, 2013 06:44 AM|LINK

Use HTML5 SessionStorage.. It will Save your Values of TextBoxes till the Browser Close.

I'm coding for your requirements..

<!DOCTYPE html>
<html>
<head>
<script>
function SubmitForm() {
	   var YourTextBox1 = document.getElementById("TextBox1").value;
       sessionStorage.setItem("Name", YourTextBox1);
}

function GetValues() {
	var NameSession = sessionStorage.getItem("Name")
	if (NameSession != null)
	{
		document.getElementById("TextBox1").value = sessionStorage.getItem("Name");
	}
}
window.addEventListener("load", GetValues, false);
</script>
</head>
<body onload="GetValues()">

<input type="text" id="TextBox1" />

<input type="button" onclick="SubmitForm()" value="Submit Form.." />
</body>
</html>

Note:

I'm preferring your to use HTML5 because its a new and useful technology.. so, hands on on HTML5...