CODEWITHSUNDEEP
c#asp.net.net
Karthik
Karthik

Reputation: 2399

Can I pass a value to a page without using query strings or sessions?

I have created a web application in which there are two menus which load the same page. I need to check a condition in the page so that I can load different data based on the variable passed to this page. However, I don’t want to use a query string, since that would require using a different URL, which would interfere with SEO.

Is there a way to do this without using query strings or session data? I need to pass different values on clicking different links in the master page.

Upvotes: 1

Views: 13801

Answers (7)

mjwills
mjwills

Reputation: 23820

I would suggest looking into canonical links.

Using this, you can have two different URL forms, for example bob.aspx and bob.aspx?input=whatever and search engines will only include one of them (e.g. the first) in its index.

Upvotes: 0

Nighil
Nighil

Reputation: 4129

Using the reference in the PreviousPage property, you can search for controls on the source page and extract their value. You typically do this with the FindControl method.

use PreviousPage.FindControl("yourcontrolname")

these link may help you

How to: Pass Values Between ASP.NET Web Pages

PreviousPage Property

Upvotes: 2

Saeed
Saeed

Reputation: 7370

If your problem with query string is just url changing, you can use post method to send data with using a hidden input. like this:

<form  action="products.aspx" method="post">
...
<input type="hidden" id="field1" value="value1"/>
</form>

Or use ajax. You can send http request by means of javascript with ajax. In this case there are no url changing or something. This is an example:

<script type="text/javascript">
function loadXMLDoc()
{
var xmlhttp;
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
    document.getElementById("mainDiv").innerHTML=xmlhttp.responseText; //changing the menu
    }
  }
params="field1="+document.getElementById("field1").value;
xmlhttp.open("POST","products.aspx",true);
xmlhttp.send(params);
}
</script>

Upvotes: 0

Jason
Jason

Reputation: 3485

Try window.location.hash: https://developer.mozilla.org/en/DOM/window.location

You could store data after the # in a URL. This is what Twitter does.

Upvotes: 0

Jeremy Thompson
Jeremy Thompson

Reputation: 65534

Along with the two other answers if the URL is of concern with query string parameters (and you dont want sessions - eg due to in-proc storage), then one alternative to increase your rank with web-crawlers is ASP.NET Routing.

Upvotes: 1

Vamsi
Vamsi

Reputation: 4253

You can use javascript to post data to you page or you can use hidden fields or cookies

Upvotes: 1

Ravi Gadag
Ravi Gadag

Reputation: 15851

you can pass values in many ways. using sessions, cookies, query string, hidden inputs. i personally feel storing query string for menu navigation its not problem, until unless he comes to know exact querystring parameters.

you can try this other methods, Passing Values between webforms

Upvotes: 0

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