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• Adding a UserControl within another UserControl in Sharepoint 2007

  - by DougJones

  I am using WSPBuilder to create and deploy my web part from a user control, as shown here. This works perfectly well, but I have added another user control to the project. I am adding it in page_init by going the Page.LoadControl("~/_controltemplates/MyControl.ascx"); route. It builds successfully, but after adding it to the page, I get The referenced file '/MyControl.ascx' is not allowed on this page. This control is in the ControlTemplates folder in the hive. In the web.config for this sharepoint 2007 site, all items within _controltemplates are listed as safe, as shown here <SafeControl Src="~/_controltemplates/*" IncludeSubFolders="True" Safe="True" AllowRemoteDesigner="True" /> How do I get the ascx file to be allowed on the page and get this webpart to display successfully?

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• Adding Control to Container Control that is in User Control - How to properly initialize?

  - by DougJones

  Let's say I have a user control MyUserControl, which has a container control (it's a server control, but it could just be a Panel) and a dropdownlist. The dropdownlist is not in the container control initially. In it's code-behind, I am overriding OnInit and creating the user control, which includes populating a dropdownlist and adding that dropdownlist to my container control. I have a public property Year, which is an int. Based on the value of Year, I want to populate the dropdownlist. The problem is that in OnInit, year is always 0. On the page Init, I am setting year, but that doesn't run until AFTER the control's Init runs. If I try to set the value on PreInit on the page, the page hasn't initialized the control and I get invalid null reference when setting a value to the control. My question is: How can I properly initialize the control? How can I set the value on the page, before the control actually gets initialized? If I move the control's code to OnLoad, it'll work until I have to do a postback. In this case I need to, though!

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