The following code example creates an OpenFileDialog, sets several properties to define the file extension filter and dialog behavior, and displays the dialog box using the …

In this article we'll focus on the OpenFileDialog class, which makes it very easy to display a dialog for opening one or several files. Simple OpenFileDialog example

C# OpenFileDialog control is used to browse and select a file on a computer. In this article, you'll learn how to use the OpenFileDialog in C#.

Feb 18, 2023 · OpenFileDialog This allows users to browse folders and select files. It can be used with C# code. It displays the standard Windows dialog box. The results of the selection made …

There is a hackish solution using OpenFileDialog where ValidateNames and CheckFileExists are both set to false and FileName is given a mock value to indicate that a directory is selected.

Dec 10, 2025 · OpenFileDialog is part of the System.Windows.Forms namespace (or Microsoft.Win32 for WPF) and is explicitly designed to select files, not folders. By default, it …

You can access the file specified by the user in the OpenFileDialog—and then read it in using the System.IO namespace methods. We also handle exceptions, preventing some errors related …