Clear QueryString on PostBack?

[Raterus]

Howdy,

Simple question, but I can't figure out how to do it. I have a a page which is called initially with a querystring. After I get the querystring values, I don't need the querystring to appear in the url anymore. How can I get rid of it? A postback doesn't clear it, it just keeps tagging along. I tried Request.QueryString.Clear, but get "readonly" errors.

I want to do this, because eventually I use server.transfer within this page, and the querystring, tags along to new page as well, even after a postback on this new page. I start to get problems when, from second page, I perform a server.transfer back to the first page. My problems are explainable, if the querystring was empty, the page would work properly, but since the querystring is set, my page essentially breaks. I'm not too concerned about this, because if I could get rid of the querystring, I wouldn't have this problem!

Thanks for any help on this,
--Michael

 

[Nicole Calinoiu]

Michael,

The Server.Transfer method has an overload that allows you to specify
whether the querystring and form data should be preserved or not. Using
this appropriately should give the result you desire. Otherwise, might a
client-side redirection work for at least one of your two transfers?

HTH,
Nicole


Howdy,

Simple question, but I can't figure out how to do it. I have a a page which
is called initially with a querystring. After I get the querystring values,
I don't need the querystring to appear in the url anymore. How can I get
rid of it? A postback doesn't clear it, it just keeps tagging along. I
tried Request.QueryString.Clear, but get "readonly" errors.

I want to do this, because eventually I use server.transfer within this
page, and the querystring, tags along to new page as well, even after a
postback on this new page. I start to get problems when, from second page,
I perform a server.transfer back to the first page. My problems are
explainable, if the querystring was empty, the page would work properly, but
since the querystring is set, my page essentially breaks. I'm not too
concerned about this, because if I could get rid of the querystring, I
wouldn't have this problem!

Thanks for any help on this,
--Michael

 

[Raterus]

Never knew it had that option, but unfortunately that doesn't help, as the default is "false".
I think my more explain my problem now by this example, take server.transfer out of it. After my page that uses the querystring is rendered, this appears in the html source. The postback uses the querystring, I don't want it to.

<form name="Form1" method="post" action="manage.aspx?docID=40" id="Form1">
I want it to say this
<form name="Form1" method="post" action="manage.aspx" id="Form1">

Any ideas how I can clear the querystring from being rendered like this?

--Michael

 

[Guest]

Hi

You can change the Action attribute of the form through client-side script
Please see this article on Microsoft Support
PRB: Cannot Change or Remove the QueryString Action for a Web Form on Postbac
http://support.microsoft.com/default.aspx?scid=kb;en-us;81021

Bin Song, MCP

 

[bruce barker]

the only way to clear the querystring is a redirect. the browser does not
know you do a server transfer, it just remembers what the url (including
query string) was for the postback. to clear it you send the browser a
redirect, so that the new rendered page matchs the new url.

-- bruce (sqlwork.com)


Howdy,

Simple question, but I can't figure out how to do it. I have a a page which
is called initially with a querystring. After I get the querystring values,
I don't need the querystring to appear in the url anymore. How can I get
rid of it? A postback doesn't clear it, it just keeps tagging along. I
tried Request.QueryString.Clear, but get "readonly" errors.

I want to do this, because eventually I use server.transfer within this
page, and the querystring, tags along to new page as well, even after a
postback on this new page. I start to get problems when, from second page,
I perform a server.transfer back to the first page. My problems are
explainable, if the querystring was empty, the page would work properly, but
since the querystring is set, my page essentially breaks. I'm not too
concerned about this, because if I could get rid of the querystring, I
wouldn't have this problem!

Thanks for any help on this,
--Michael

 

[mrawlingson]

I know I'm a bit late on this one, but for those stumbling across this - you can change the action attribute using Form.Action in your code behind

Sample code:

if (request.querystring == "something") {
//do something
Form.Action = "this page.aspx";
}

So any time there is a further postback or any submission of the form, your querysting won't be carried over.

 

[malbert1169]

This works PERFECTLY! Thank you, mrawlingson.

I know I'm a bit late on this one, but for those stumbling across this - you can change the action attribute using Form.Action in your code behind

Sample code:

if (request.querystring == "something") {
//do something
Form.Action = "this page.aspx";
}

So any time there is a further postback or any submission of the form, your querysting won't be carried over.