How to clear Query string value in asp.net

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Hi,

How to Clear the Query String value.

Example:

response.write("sample.aspx?id=3")

iam getting this value another page like

int id=request.querystring["id"];

I want to clear this value in update method.

iam using followings

Response.ClearContent();
Request.QueryString.Remove("id");

but it is not clears

Thanks®ards
venkat

Posted 4-Jan-12 17:33pm

venkat Ambala

Updated 10-Oct-18 3:32am

Rajesh Anuhya

v3

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Emad Al Hawary · Answer 1 · 2012-01-04T17:45:00

To clear all querystrings, you can invoke the Request.QueryString.Clear();
which will remove all the querystrings at the url
To remove a specific querystring invoke Request.QueryString.Remove("name of the querystring"),

example:

http://www.mypage.aspx?id=123

Request.QueryString.Remove("id");

or you can use

Request.QueryString.Clear();

which will remove or the querystrings

example

http://www.mypage.aspx?id=123&date=29/8/2008

Request.QueryString.Clear();

result
Url without the two querystrings (id,date);

venkat Ambala · Answer 2 · 2012-01-04T18:02:00

Solution 3

PropertyInfo isreadonly = typeof(System.Collections.Specialized.NameValueCollection).GetProperty("IsReadOnly", BindingFlags.Instance | BindingFlags.NonPublic);
                // make collection editable
                isreadonly.SetValue(this.Request.QueryString, false, null);
                // remove
                this.Request.QueryString.Remove("id");

Hi solved this using the above code

Posted 4-Jan-12 18:02pm

venkat Ambala

Updated 5-Jan-12 2:21am

v2

Comments

Rajesh Anuhya 5-Jan-12 8:21am

You are not supposed to post here

murali21oct 17-Jul-13 10:03am

Worked for me. Thanks!

[no name] 3-Feb-14 6:33am

PropertyInfo doesnot contain method SetVAlues

Nigam Patel · Answer 3 · 2012-01-04T17:50:00

Solution 2

you can use

Request.QueryString.Clear();

for clear all the query string

Posted 4-Jan-12 17:50pm

Nigam Patel