How Can I Easily Select Folders in C#?

Challenge of selecting folder using OpenFileDialog

Some projects try to use the OpenFileOrFolderDialog, GetOpenFileName and OPENFILENAME structures to select folders. However, integrating the necessary res1.rc files and dialog templates into a C# project can be complicated.

Simpler alternative: FolderBrowserDialog

To simplify the folder selection process, the FolderBrowserDialog class is ideal. It provides an intuitive user interface and simplifies the process.

Use FolderBrowserDialog

<code class="language-csharp">using System.Windows.Forms;
using System.IO;

using (var fbd = new FolderBrowserDialog())
{
    DialogResult result = fbd.ShowDialog();

    if (result == DialogResult.OK && !string.IsNullOrWhiteSpace(fbd.SelectedPath))
    {
        string[] files = Directory.GetFiles(fbd.SelectedPath);

        MessageBox.Show("找到的文件数量: " + files.Length, "提示");
    }
}</code>

For WPF projects, you need to add a reference to System.Windows.Forms. Additionally, System.IO is also required for the Directory class.

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