Dynamically Added User Control

[JenJen]

I have a solution with 2 projects in it. I need to programatically add a user control from one project into the other one (as you cannot declare this normally on the form because it is in a different application). When the page_load event of the user control is fired at run-time, none of the form objects on the user control exist.

Is this a namespace issue? Or can you just not share a user control over 2 projects without having a copy in both projects.

 

[jbenson001]

Do you have a refernce to the project that holds the UC that you need?

 

[JenJen]

Yes, it all compiles fine, and the page_load event is fired. But any reference to the form objects in the UC gives the error - Object reference not set to an instance of an object.
The line of code that errors is trying to add the imageurl of an image.

Thanks,
Jenni

 

[jbenson001]

Can you show the code that gives the error, and the HTML of the UC?

 

[JenJen]

HTML in user control -

<asp:image Height="33" AlternateText="Powered by WorldPay" Width="139" ImageAlign="AbsMiddle" Runat="server" ID="imageWorldPay"></asp:image>

Code that gives the error in the code behind of the UC -

imageWorldPay.ImageUrl = "~/images/poweredbyworldpay.gif";

Code in the other project which loads the uc -

protected System.Web.UI.Control pricegridcontrol;
pricegridcontrol = new LumleyJacobsSharedLibrary.controls.BuyingProcessPriceGrid();
wlnav_pricegrid.Controls.Add(pricegridcontrol);

Thanks,
Jenni