How to using URL parameters within the same session

[DanBarclay]

Hello,
right now we know how to handle URL parameters when starting a new session. What we do is call a StartupSession method like shown below

Code:

procedure TWebRegistrationServerController.IWServerControllerBaseNewSession(
 ASession: TIWApplication);
begin
 ASession.Data := TWebRegistrationSession.Create(nil, ASession);
 WebRegistrationSession.SetupSession;
end;

Then in the .StartupSession method we look at the parameters and do something like

Code:

WebRegistrationSession.StartupSession

aValue := WebApplication.Request.QueryFields.Values[aFieldName];
if aValue = option1 then
    FStartupForm:=Option1form.Create...
else if aValue = option 2
 FStartupForm:=Option2form.Create...

 
Then, in the ServerController I set the FStartupForm to the main form

Code:

procedure TWebRegistrationServerController.IWServerControllerBaseGetMainForm(
   var vMainForm: TIWBaseForm);
begin
 vMainForm := WebRegistrationSession.StartForm;
end;

In that way, the URL controls which form the session starts with.

But what if the session is runnig, and the user pastes a URL in the browser and I want to show a form within that session based on the URL?

For example, I am making a simple CMS system based on TinyMCE, as wrapped by the CGDevTools components. If I want the user to be able to link to pages within the CMS I need to have a link that refers to a custom page within the CMS in the same session. So the link will be something like www.whatever.com/$/customPage="my page name"

So I need to be able to detect those links within a current session and then update the page that is being viewed to the page in the parameters. How can I do that?

Take a look at the ContentHandlersDemo.  I think it does exactly what you are looking for.

Dan