Pass value between asp.net web page
<p>I'm using asp.net with c# in backcode. On my first page, I have a hyperlink with 
<code>NavigateUrl ="Order.aspx?productId = " + ProductID</code> . I want to transfer <code>ProductID</code> in <code>Order.aspx</code> file.
So, how to get it in target file :<code>Order.aspx</code>.</p>

<p>I used a lable to display in Order.aspx file </p>

<p><code>string productId = Request.QueryString["productId"];</code></p>

<p><code>lblTest.Test = productId</code></p>

<p>But <code>lblTest</code> didn't display anything</p>

<p>Thanks.</p>
