C＃最顶层的窗口

Question

I have two windows form and both set the topmost property to true. But the form border style of the one form is Set to "None". The other form has border. When these two forms launch together, the one without the border is always on top and overlap the other form. How do i make the form with border always on top? thanks.

Answer 1

I suggest you to start the form with borders last or set other form TopMost property to false.

[Edit] I sugest you to look at the Forms Owner property - http://msdn.microsoft.com/en-us/library/system.windows.forms.form.owner.aspx .

formWithoutBorders.AddOwnedForm(borderForm);
borderForm.Show();

Answer 2

Show (make Visible) the window that is supposed to be on top, later as the other window.

Topmost only works between non-topmost and topmost windows. Between Topmost windows, the normal rules apply of what window to show.

Answer 3

为了理解为什么会发生这种情况，我推荐Raymond Chen's 如果有两个程序做了这篇文章