Passing variables using QueryString

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Hi,
In the below code, if i try to pass values using variables its not working
but if i pass by their positions its not displaying data in the next page.
Can some please tell me why

protected void btnSubmit_Click(object sender, EventArgs e)
    {
        string username = Request.QueryString[0];
        string product = ProductTextBox.Text;
        //string url = "~/SummaryPage.aspx?username=&" + username + & "&product=" + product;
        string url = "~/SummaryPage.aspx?username=" + username + "&product=" + product;

        Response.Redirect(url);
    }

Posted 24-Nov-10 3:26am

lee.shakir

Updated 24-Nov-10 3:45am

thatraja

v3

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thatraja 25-Nov-10 1:18am

Can you please explain your question little bit. What do you mean "their positions its not displaying data in the next page"?

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Manfred Rudolf Bihy · Answer 1 · 2010-11-24T03:41:00

Solution 1

Just a small error:

string url = "~/SummaryPage.aspx?username=&" + username + & "&product=" + product;

You'll have to delete the first and the second ampersand. Third one is ok.

BTW: with the second ampersand being were it is this code should not even compile!

cheers

Manfred

Posted 24-Nov-10 3:41am

Manfred Rudolf Bihy

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thatraja 24-Nov-10 9:44am

Sorry dude, It's my mistake in edit, I'll edit

Gregory Gadow · Answer 2 · 2010-11-24T03:43:00

Solution 2

I see two problems. First is the ampersand after username: a browser will interpret this as username having an empty value, and product as the third parameter, not the second. Second, you have a stray ampersand outside of any quotes. Try this:

C++

string url = "~/SummaryPage.aspx?username=" + username + "&product=" + product;

Posted 24-Nov-10 3:43am

Gregory Gadow

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thatraja 24-Nov-10 9:46am

Sorry dude, It's my mistake in edit, I'll edit