How to hide only the Close x button

Question

I have a modal dialog  and need to hide the Close  X  button  but I cannot use  ControlBox   false  because I need to keep the Minimize and Maximize buttons   I need to hide just Close button  is there any way to do that   Thanks a lot   Update  I had permission to disable it  which is simpler    Thanks all

User · Answer

Well  you can hide it  by removing the entire system menu  private const int WS SYSMENU   0x80000  protected override CreateParams CreateParams       get               CreateParams cp   base CreateParams          cp Style  amp    WS SYSMENU          return cp           Of course  doing so removes the minimize and maximize buttons  If you keep the system menu but remove the close item then the close button remains but is disabled  The final alternative is to paint the non-client area yourself  That s pretty hard to get right

User · Answer

We can hide close button on form by setting this ControlBox false  Note that this hides all of those sizing buttons  Not just the X  In some cases that may be fine

User · Answer

If you really want to hide it  as in  not visible   then you will probably have to create a borderless form and draw the caption components yourself   VisualStyles library has the Windows Elements available   You would also have to add back in the functionality of re-sizing the form or moving the form by grabbing the caption bar   Not to mention the system menu in the corner   In most cases  it s hard to justify having the  close  button not available  especially when you want a modal form with minimizing capabilities   Minimizing a modal form really makes no sense

User · Answer

You can t hide it  but you can disable it by overriding the CreateParams property of the form   private const int CP NOCLOSE BUTTON   0x200  protected override CreateParams CreateParams       get              CreateParams myCp   base CreateParams         myCp ClassStyle   myCp ClassStyle   CP NOCLOSE BUTTON          return myCp            Source  http   www codeproject com KB cs DisableClose aspx

User · Answer

Well you can hide the close button by changing the FormBorderStyle from the properties section or programmatically in the constructor using   public Form1     InitializeComponent    this FormBorderStyle   FormBorderStyle None      then you create a menu strip item to exit the application   cheers

[c#] How to hide only the Close (x) button?

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