Question

ASP.net request.querystring

Asked by: GabicusC

I have been away from coding for a longtime and am just trying to read a simple querystring.  Below is what I have for the request but I keep getting an this error:

Compiler Error Message: CS0246: The type or namespace name 'request' could not be found (are you missing a using directive or an assembly reference?)

The URL that I am trying to pass looks like this:

<a href="../ticketing/account/login.aspx?tx_PromoCode=8755">

What am I doing wrong here?

Thanks,

Gabicus

<asp:Panel ID="pnl_ShowPromo" Runat="server">
	<p>
		<asp:Label ID="lbl_PromoCode" CssClass="formLabel" Runat="server">Promotion Code</asp:Label> <span class="subText">(optional)</span><br>
		<asp:textbox id="tx_PromoCode" value="<%= request.querystring("tx_PromoCode") %>" </asp:textbox>" maxlength="50" TabIndex="3" Runat="server"/><br/>
	</p>
</asp:Panel>
                                  
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Asked On
2009-10-01 at 16:18:51ID24778868
Tags

ASP.net

Topics

Programming for ASP.NET

,

.NET Framework 1.x

Participating Experts
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500
Comments
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Answers

 

by: Omego2KPosted on 2009-10-01 at 16:32:19ID: 25474133

Are you using vb.net? if C# it should be Request.QueryString as it's case sensitive

also I believe you need to use # in this case not = so change it to
<asp:textbox id="tx_PromoCode" value="<%# Request.QueryString("tx_PromoCode") %>" </asp:textbox>" maxlength="50" TabIndex="3" Runat="server"/><br/>

 

by: Omego2KPosted on 2009-10-01 at 16:35:23ID: 25474150

oh that's not the only thing that's wrong sorry, here is how it should look:

<asp:textbox id="tx_PromoCode" runat="server" Text='<%# Request.QueryString("tx_PromoCode") %>' maxlength="50" TabIndex="3"> </asp:textbox><br/>

 

by: GabicusCPosted on 2009-10-01 at 16:42:23ID: 25474195

Omego2k,

Thanks,

I did not notice that it was in C#.

I made the change but I am now getting this error.

Compiler Error Message: CS0118: 'System.Web.HttpRequest.QueryString' denotes a 'property' where a 'method' was expected

 

by: Omego2KPosted on 2009-10-01 at 16:47:21ID: 25474213

so it's in c#? ok so therefore change the code to:

<asp:textbox id="tx_PromoCode" runat="server" Text='<%# Request.QueryString["tx_PromoCode"] %>' maxlength="50" TabIndex="3"> </asp:textbox><br/>

if you notice I replaced the params with brackets, as that's how you use indexers in C#

 

by: Omego2KPosted on 2009-10-01 at 16:50:17ID: 25474224

Oh and I forgot to mention, you have to call the pages DataBind() method in order to make the textbox display the text. You can do this in the page load event.

 

by: GabicusCPosted on 2009-10-01 at 17:00:24ID: 25474261

Well it looks like I am going to be picking up a new book on ASP.net #C.  This has changed a lot from when I use to do this in VB.

I hate to ask but I would I set up the  page load event and databind?

Thanks.

 

by: Omego2KPosted on 2009-10-01 at 17:15:35ID: 25474300

make sure that you have AutoEventWireup="true" in the page directive. The page directive starts like this: <%@ Page

Then add the following function in the code behind:

protected void Page_Load(object sender, EventArgs e)
{
        DataBind();
}

You can always leave out the Text property from the declaration of the text box and set it in the page load. So you would declare the textbox like this:

<asp:textbox id="tx_PromoCode" runat="server" maxlength="50" TabIndex="3"> </asp:textbox><br/>

and in the page load have this instead of DataBind:
tx_PromoCode  = Request.QueryString["tx_PromoCode"];

 

by: Omego2KPosted on 2009-10-01 at 17:16:04ID: 25474303

er sorry change the above where I say:
tx_PromoCode  = Request.QueryString["tx_PromoCode"];

To:
tx_PromoCode.Text  = Request.QueryString["tx_PromoCode"];

 

by: GabicusCPosted on 2009-10-01 at 17:43:12ID: 25474401

Omego2K,

Thanks for all the help!

Gabicus

20120131-EE-VQP-002

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