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Home/ Questions/Q 984015
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Editorial Team
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Editorial Team
Asked: May 16, 20262026-05-16T04:56:52+00:00 2026-05-16T04:56:52+00:00

The application is an MDI container app. A specific child form (Form1) when loaded

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The application is an MDI container app. A specific child form (Form1) when loaded gets focus and will not release the focus. If another form is opened up, the user is not able to select any field within that form if the Form1 form is open.

Also, within the Form1, the focus will not leave a combobox even to set focus to another field on the same form.

I am not using ShowDialog and TopMost is set to false.

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  1. Editorial Team
    Editorial Team
    2026-05-16T04:56:53+00:00Added an answer on May 16, 2026 at 4:56 am

    Check to see if you have any methods assigned to the Leave event for the combobox, it sounds as though your application is setting the combobox to the active control whenever it loses focus.

    Your form may also have the same type of code implemented, setting it to the active form when it loses focus.

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