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Editorial Team
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Asked: 2026-06-03T00:30:55+00:00

I have gone around and around with this problem using a combination of show(),

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I have gone around and around with this problem using a combination of show(), showdialog(), bringtofront() and activate().

I am running CF 3.5 on a symbol MC50 PocketPC running Windows Mobile 5 (I think it is 5…)

This has to be simpler. Could someone please please give me some advice on this one?

If I use form.Show() the second time nothing happens.
If I use form.ShowDialog() the second time I receive this error:
“value does not fall within expected range”

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1 Answer

  1. Editorial Team

    If you call form.Close(), all resources within the instance of the form and the instance itself are disposed of. If you just wish to visually close the form but keep it around, you should use form.Hide(). This issue gave me quite a bit of frustration as well. Below is a note from the Microsoft documentation regarding this:

    Note:
    When the Close method is called on a Form displayed as a modeless window,
    you cannot call the Show method to make the form visible, because the form’s
    resources have already been released. To hide a form and then make it visible,
    use the Control.Hide method.

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