--- title: "FileDialog Class" ms.date: "03/30/2017" helpviewer_keywords: - "FileDialog class [Windows Forms]" ms.assetid: 85a8fb62-c7d9-4a30-9b74-1cd10efe6ccb --- # FileDialog Class The Windows Forms class is the common base class for the and components. You can make changes to the class that affect the appearance and behavior of these dialog boxes, depending on the version of Windows the application is running on. ## In This Section [How To: Opt Out of File Dialog Box Automatic Upgrade](how-to-opt-out-of-file-dialog-box-automatic-upgrade.md) Describes how to opt out of a style automatic upgrade to a file dialog box. [How To: Add a Custom Place to a File Dialog Box](how-to-add-a-custom-place-to-a-file-dialog-box.md) Describes how to add a custom file location to a file dialog box. [Known Folder GUIDs for File Dialog Custom Places](known-folder-guids-for-file-dialog-custom-places.md) List the folder names and their associated GUIDs. ## Reference ## Related Sections [OpenFileDialog Component](openfiledialog-component-windows-forms.md) [SaveFileDialog Component](savefiledialog-component-windows-forms.md)