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Editorial Team
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Asked: 2026-05-25T02:21:30+00:00

TextBoxes and NumericUpDowns have the odd property of not allowing you to deselect them

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TextBoxes and NumericUpDowns have the odd property of not allowing you to deselect them once they are selected. When my user selects a NumericUpDown and clicks else-where on the form, the NumericUpDown should be deselected.

Unfortunately, this is not the case. Currently I am just handling the MouseDown event of all other controls on the form (like the panels and actual form itself) and just calling the Focus method of a random label to remove the focus from the NumericUpDown. However, this cannot be applied to menu items or scrollbars.

There must be a better way to do this. The user may want to scroll the panel instead of the NumericUpDown and intuitively click the Panel and then use the scroll-wheel, but currently that would scroll the NumericUpDown instead, since it still has focus.

Thanks for reading.

Edit: Problem still unsolved.

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1 Answer

  1. Editorial Team

    Normally Panel Control is a Non-Focusable control. Therefore clicking on Panel will NOT remove focus from TextBox or NumericUpDown Countrol.

    The workaround can be, place a button on panel and move it away from view for example setting its x = -100 and y = -100. Do NOT set visible = false.

    Now whenever user clicks on Panel (Panel_Click event) set focus (Button.Focus()) to that button. In this way panel will be scrollable through scroll-wheel.

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