Visually remove/disable close button from title bar .NET

Question

I have been asked to remove or disable the close button from our VB .NET 2005 MDI application. There are no native properties on a form that allow you to grey out the close

Answer 1

Prevent to close the form, but hide it:

Private Sub Form1_Closing(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
    Me.WindowState = FormWindowState.Minimized 
    Me.Visible=false
    e.Cancel = True
End Sub

Answer 2

When you press the X box on the form. The Form1_Closing is done first, then the Form1_Closed is done.

The e.Cancel = True in the Form1_Closing - prevents Form1_Closed from being called therefore, leaving your form still active.

Answer 3

Making a Form without a Titlebar in Visual Basic.

Go to Form Properties and set both ControlBox and ShowIcon to false.

Then, clear all the text from the form's text property.

Answer 4

Select (or click) the form itself Click on events in the property window (the little lightning bolt icon). Look for Form.Closing and double click it. Then type: e.cancel=true

Answer 5

Just select the required form and in the properties section, set controlBox = false That just worked for me :)

Answer 6

You can set the ControlBox property to False, but the whole title bar will be gone but the title itself...