Locking a parent window

Hi,

You can use the modal form.

//Display frmAbout as a modal dialog
Form frmAbout = new Form();
frmAbout.ShowDialog();

Forms and dialog boxes are either modal or modeless. A modal form or dialog box must be closed or hidden before you can continue working with the rest of the application. For more information about working with dialog boxes

Here is a link.

http://msdn.microsoft.com/en-us/library/39wcs2dh(VS.80).aspx

Thank you,