[RESOLVED] Register user control in web config, reference in code

[FishGuy]

I have registered a user control in my web config as below, then on my aspx page i place an instance of the control

<asp:Content ID="Content2" ContentPlaceHolderID="maincontent" Runat="Server">
    <AG:MenuControl ID="MenuControl1" runat="server" />
</asp:Content>

<configuration>
	<system.web>
   <compilation debug="true" targetFramework="4.0"/>
    <pages>
      <controls>
        <!-- Global Sourcing Platform user controls -->
        <add tagPrefix="AG" tagName="MenuControl" src="~/usercontrols/Menu.ascx" />
      </controls>
     </pages>

This works fine and the code builds and displays the control as desired.

The problem comes when I want to reference the control in code.

i.e.

ASP.usercontrols_Menu testvar;

It just does not appear in intellisense or allow build when trying to reference the usercontrols class. I get the error

Error 1 c:\Outlines\Outlines\usercontrols\Menu.ascx.cs(36): error CS0234: The type or namespace name 'outlines_usercontrols_menu_ascx' does not exist in the namespace 'ASP' (are you missing an assembly reference?)

Please could someone tell me what I am missing here.

[FishGuy]

   <%@ Reference Control="~/Outlines/usercontrols/Menu.ascx" %>

That fixed the original error, my problem now is that I have a circular reference.

I have control a reference control B which also needs to reference control a. Is there anyway round this?

The reason for the references is because I wanted to set properties of the controls on postback and use the previouspage method to retrieve the values of the controls properties when moving between pages. This causes a problem with both controls needing to reference each other.

[gep13]

Hello FishGuy,

I am having a problem visualising the problem that you are having. Can you perhaps upload a small sample project that shows the problem that you are having?

Thanks

Gary

[FishGuy]

Ok I have two seperate pages each has a seperate user control on.
I want to be able to set a value on the usercontrol on the first page and access it in the second user control when I navigate to the next page.

I have found this is pretty straight forward if i set a public property and then use put a reference to the first user control in the second I can use the previous page method and find conrol.

   if (Page.PreviousPage != null && Page.PreviousPage.IsCrossPagePostBack)
            {
                ContentPlaceHolder BodyContent = (ContentPlaceHolder)Page.PreviousPage.Master.FindControl("maincontent");
                ASP.courseoutlines_usercontrols_searchoutlines_ascx test = (ASP.outlines_usercontrols_searchoutlines_ascx)BodyContent.FindControl("SearchOutlines1");
                if (test != null)
                {
                Code = test.Code;

However if the user navigates back to the original page I would want to set a value on this control and have it accessible from the original control, however to do this as above it would also require a reference to the second control meaning both controls have to reference each other. This is not allowed.

I have kind of gotten round this by using session variables to pass the values between the controls instead but wondered if there was a better method?

[gep13]

Ah, I see what you are referring to now.

In all honesty, I don't think that there is a "better" way than what you are already doing with Sessions.

Gary