C#: making a form non-resizable

Question

In order to make a form non-resizable I have set MaximumSize and MinimumSize to the same value.

The problem I have is that when the user points to the border of the form, the mouse pointer changes so that it look as though the form is resizable. Is is possible for this not to happen?

possible duplicate of [Prevent users from resizing the window/form size](http://stackoverflow.com/questions/1330339/prevent-users-from-resizing-the-window-form-size) — bluish, Aug 25 '15 at 12:48

score 84 · Accepted Answer · answered Mar 02 '11 at 14:49

84

Set Form.FormBorderStyle to something else than Sizable.

answered Mar 02 '11 at 14:49

Christian Hayter

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Set Form.FormBorderStyle = FormBorderStyle.FixedSingle should be the correct answer. There's one possible FormBorderStyle named SizableToolWindow which will result to a form still sizable but with no maximum/minimum button. – Edward Zhang Oct 05 '20 at 07:55

score 30 · Answer 2 · answered Mar 02 '11 at 14:49

30

Use this:

this.FormBorderStyle = FormBorderStyle.FixedSingle;

answered Mar 02 '11 at 14:49

TurBas

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This should be the actual answer. – Hemal Feb 09 '17 at 04:28

score 4 · Answer 3 · answered Feb 09 '17 at 04:25

4

"Set Form.FormBorderStyle to something else than Sizable" is not enough, need to set MaximizeBox = False, or user can change form size by maximum it

answered Feb 09 '17 at 04:25

yelliver

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By setting `MaximizeBox` at `False` you deactivate the maximize button on the top right corner I suggest to do this AND to set `Form.FromBorderStyle` to `FixedDialog` – Jacques R Jul 06 '21 at 10:44

score 2 · Answer 4 · answered Dec 28 '17 at 16:48

2

If you desire to set this in designer under Appearance there is a field to set FormBorderStyle this can be changed to something that starts out with Fixed*.

answered Dec 28 '17 at 16:48

Kram

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score 2 · Answer 5 · edited Aug 06 '13 at 13:45

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[...] FormBorderStyle.FixedDialog border style changes the border of the form to that of a dialog box and prevents the form from being resized. [...]

http://msdn.microsoft.com/en-us/library/system.windows.forms.form.formborderstyle.aspx

edited Aug 06 '13 at 13:45

sshow

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answered Mar 02 '11 at 14:50

Andrey

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score 1 · Answer 6 · answered Jul 02 '17 at 23:57

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Just go under misc and change sizeable to false.

answered Jul 02 '17 at 23:57

xXEmeraldPlayzXx

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score 1 · Answer 7 · answered Mar 02 '11 at 14:50

1

to make a form not resizable just change the property: FormBorderStyle to anything but not Resizable.

answered Mar 02 '11 at 14:50

Davide Piras

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score 0 · Answer 8 · edited May 13 '16 at 11:16

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formName.FormBorderStyle = FormBorderStyle.FixedSingle;

edited May 13 '16 at 11:16

Mariusz Jamro

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answered Dec 15 '15 at 03:35

Richmonde Calalo

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C#: making a form non-resizable

8 Answers8