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Dynamic Checkboxlist exception when adding to Panel when using Master Page

Posted By:      Posted Date: August 23, 2010    Points: 0   Category :ASP.Net

In essence, I am creating Dynamic Checkboxlist controls and adding them to a Panel.  It works well when I do not have a Master Page configure to this webpage. Once I have a masterpage congifured.. I get a "Object Reference not set to instance of object" error on the Panel_Control.Controls.Add(Checkboxlistnew) line:

protected void Page_PreInit(object sender, EventArgs e)
        XML OXML = new XML();
        alistChkBoxLabels = OXML.XMLTransform("C:\\Documents and Settings\..\\Config_new.xml", "config_options/check_box/applications/app/@name");
        int count = 1;
        alistCheckisFacility = new ArrayList();
        alIDTracker = new ArrayList();
        while (count <= alistChkBoxLabels.Count)

            Checkboxlistnew = new CheckBoxList();
            Checkboxlistnew.ID = count.ToString();
            Checkboxlistnew.Items.Add(new ListItem(alistChkBoxLabels[count - 1].ToString(), alistChkBoxLabels[count - 1].ToString()));

            String sAppName = alistChkBoxLabels[count - 1].ToString().Trim();

            alistCheckisFacility = OXML.XMLTransform("C:\\Documents and Settings\\Administrator\\My Documents\\Visual Studio 2005\\WebSites\\User_Trial\\Config_new

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