C# WinForms – How to Disable Form Resizing c++winforms How do I turn off the user's ability to resize a Windows Forms form? I'm having it resize itself on a click. Best Answer Take a look at the FormBorderStyle property form1.FormBorderStyle = FormBorderStyle.FixedSingle; You may also want to remove the minimize and maximize buttons: form1.MaximizeBox = false; form1.MinimizeBox = false; Related SolutionsVB.NET – How to Prevent a Form from Being Resized by the User Set the highlighted properties. Set MaximimSize and MinimizeSize properties the same size C# WinForms – Prevent Window Resizing Change FormBorderStyle to FixedDialog, FixedSingle, or Fixed3D. Also, if you do not want them to maximize the form set Maximize to False. Related Question
Best Answer
Take a look at the FormBorderStyle property
You may also want to remove the minimize and maximize buttons: