CommonDialog.ShowDialog Method (IWin32Window)
Runs a common dialog box with the specified owner.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Return ValueType: System.Windows.Forms.DialogResult
DialogResult.OK if the user clicks OK in the dialog box; otherwise, DialogResult.Cancel.
This version of the ShowDialog method allows you to specify a specific form or control that will own the dialog box that is shown. If you use the version of this method that has no parameters, the dialog box being shown would be owned automatically by the currently active window of your application.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.