Access List Controls in Report

Hi. I am using the following Access code to load all the controls in a Form or Report
to a Combobox. The Form  part works but the Report part doesn't because opening the report
causes it to run and I get the error "The report name you entered is misspelled or refers to a report that isn't open or doesn't exist"

    If sFormOrReport = "Form" Then
        DoCmd.OpenForm CT, , , , , acHidden
        Set frm = Forms(CT)
        For Each ctl In frm.Controls
            If ctl.ControlType = acTextBox Then
                Me.cmbControls.AddItem (ctl.Name)
            End If
        Next
        DoCmd.Close acForm, CT
    Else
        DoCmd.OpenReport CT, , , , , acHidden
        Set rpt = Reports(CT)
        For Each ctl In rpt.Controls
            If ctl.ControlType = acTextBox Then
                Me.cmbControls.AddItem (ctl.Name)
            End If
        Next
        DoCmd.Close acReport, CT
    End If