Query With a C# Variable?‏

StevenF · 12-07-2008, 09:21 PM

Hiya

I was wondering if someone could help me out here, please? Big Smile

I'm creating a forum, my threads page has the following query:

SELECT * FROM [threads] WHERE ([forum_name] = ?) ORDER BY [time_created] DESC

The "?" (control value) is the sub-forum which the thread is linked to. Example:

List of Forums:

- Introduce Yourself
- The Lounge
- Another Thread
- Blah Blah Blah

User clicks on The Lounge, loads thread.aspx where Query: SELECT * FROM [threads] WHERE ([forum_name] = ?) ORDER BY [time_created] DESC runs

------------------------------------------------------------------------------------------------------------------------------------------------

Now the page with "The Lounge" threads loads, and I store the querystring into a variable

string forum_name = Page.Request.QueryString["forum_name"];
Page.Response.Write("Now browsing the threads about " + forum_name);

Now the user clicks "New Thread" button, and is presented with a form to fill out. Instead of typing the name of the forum that their thread is to be featured in (i.e. "The Lounge") I would like it to automatically have this filled in, based upon where they came from.

My Insert query then looks like this:

Insert Into threads ([thread_name], [thread_author], [forum_name], [time_created]) Values(?,?,?,?)"

But I'm getting an error saying "No value given for one or more required parameters." So I think the variable isn't passing into the query. Do you know why this might be?

Basically, how do I incorporate the value stored in that variable, into the query?

Thanks a lot!

Kind Regards,
Steven

zxt3st · 12-07-2008, 10:45 PM

i think your in the wrong section.

StevenF · 12-07-2008, 10:48 PM

There is no C# version, so I figured this would be the next best place.

If a mod wants to move it to a more relevant section, feel free.

StevenF · 12-08-2008, 12:11 AM

To simplify, I want to do something like the following:

PHP Code:


			


 <% string forum_name = Page.Request.QueryString["forum_name"];

   Page.Response.Write("Now browsing the threads about " + forum_name); %>



Insert Into threads ([thread_name], [forum_name], [thread_author], [time_created]) Values(?,<% forum_name %>,?,?)

But that isn't valid, but that shows the idea of what I want to be able to do.

masfenix · 12-08-2008, 02:57 AM

You have the easy option and an advanced option. Your easy option is that you already have a variable "forum_name" that has your forum name, so why not pass this on to your new thread page.

People click view lounge and it goes to the page view.aspx?name=viewlounge and you query that paramter am I correct?

Then from that page you call /newthread.aspx?name=viewlounge and just on your page_load event, just fill the textbox in with that parameter.

CoryMathews · 12-08-2008, 04:32 AM

In the page load event set a hidden field to the value of that variable then set that hidden fields contents to be the query param. Or a bit more secure way is to set that variable as a session variable in the page load then set that parameter as a session param and get it that way.