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Refresh/update/re-create form problem

KokoLiu

Hi,

I am planning to create a form that I would able to either refresh or update the new time I call it or it will able to remove the form and create again. I research for awhile and I was trying to do hiFormDone to remove and recreate the form. But I got into the following warning. And I am not sure how to remove the form and re-create it. Or is it easier to update the report field? If so then how can I regenerate the report field?

Thank you very much.

*WARNING* hiDeleteForm: Cannot delete a form that is mapped or from within the form's callback (WindowForm)
*WARNING* hiCreateAppForm: Could not delete already created form WindowForm

procedure(clWindowForm()
let((windowField)
if(hiIsFormDisplayed(WindowForm) then
hiFormDone(WindowForm)
)

windowField = hiCreateReportField(
?name 'window
?selectMode 'single
?headers '(("Library" 120 'left 'string t)
("cell" 300 'left 'string t)
("view" 120 'left 'string t)
("" 0 'left))
?choices clwindowList()
?sort '(2 nil)
)
WindowForm = hiCreateAppForm(
?name 'WindowForm
?formTitle "Windows"
?fields list(
list(windowField 0:0 600:500 300)
)
?buttonLayout '(OKCancel (Left "clWindowResize(\"L\")") (Right "clWindowResize(\"R\")") (Close "clWindowResize(\"Close\")"))
)

hiDisplayForm(WindowForm)
)
)

  • The problem is that the form doesn't get unmapped immediately, and so it's still mapped whilst the form is being recreated. One way around this is to use hiEnqueueCmd(). I also put an extra check that the form variable is bound so that it works the first time around:

    procedure(clCreateAndDisplayForm()
  let((windowField)
    windowField = hiCreateReportField(
      ?name 'window
      ?selectMode 'single
      ?headers '(("Library" 120 'left 'string t)
        ("cell" 300 'left 'string t)
        ("view" 120 'left 'string t)
        ("" 0 'left))
      ?choices clwindowList()
      ?sort '(2 nil)
    )
    WindowForm = hiCreateAppForm(
      ?name 'WindowForm
      ?formTitle "Windows"
      ?fields list(
        list(windowField 0:0 600:500 300)
        )
      ?buttonLayout '(OKCancel (Left "clWindowResize(\"L\")") (Right "clWindowResize(\"R\")") (Close "clWindowResize(\"Close\")"))
    )

    hiDisplayForm(WindowForm)
  )
)
procedure(clWindowForm()
  if(boundp('WindowForm) && hiIsFormDisplayed(WindowForm) then
    hiFormDone(WindowForm)
  )
  hiEnqueueCmd("clCreateAndDisplayForm()")
)

  • Hi Andrew,

    Thank you very much. That works.

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