Query String remains the same.

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I am new to aspx and have such a scenario:

User will type in a textbox and when he clicks a button the page will be redirected to itself with the query string he typed into textbox.

Here is my code:

Response.Redirect("somepage.aspx?parameter=" + txtbox1.text,false);<br />

and during page load:

txtbox1.text = Request.QueryString["parameter"]<br />

It works succesful only for the first time. After user types something else into the textbox and clicks the button the querystring remains the same. What am I doing wrong?

Posted 26-Jul-10 2:41am

Emre Gönültaş

Updated 26-Jul-10 2:43am

LittleYellowBird

v2

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Not Active · Answer 1 · 2010-07-26T02:49:00

Solution 1

I don't understand the purpose here. You don't need to use a query string to postback data to the same page. Look at ViewState or other forms of persistance.

Posted 26-Jul-10 2:49am

Not Active

Sandeep Mewara · Answer 2 · 2010-07-26T05:10:00

As Mark, said, you don't need to use Query string while posting it back to itself. To add more, Query string is one of the way to maintain state and pass on information to another page.
In your case, if you postback to the same page, all the values are directly accessible to you in code behind. No need to use/give query string. Thats not the way/use of uery strings.

Martin Jarvis · Answer 3 · 2010-07-26T06:20:00

Try adding:

if (!Page.IsPostBack) txtbox1.text = Request.QueryString["parameter"]

Without it the text box will always have it's value set to the querystring value.

Guys, doing this isn't as daft as it may seem on first glance...for example Google will do this on their search results page to prepopulate the search text box with the current search terms.

Query String remains the same.

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