How to Select a Folder Efficiently in C# Using FolderBrowserDialog?

Use OpenFileDialog more efficiently to select folders

While the OpenFileOrFolderDialog project using the GetOpenFileName function is useful, it requires the attachment of a res1.rc file and dialog initialization, which can cause problems.

Another way to select a folder using OpenFileDialog is to use the FolderBrowserDialog class. This dialog box provides an easy-to-use folder selection interface.

Use FolderBrowserDialog:

<code class="language-csharp">using(var fbd = new FolderBrowserDialog())
{
    DialogResult result = fbd.ShowDialog();

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

        System.Windows.Forms.MessageBox.Show("找到的文件数量: " + files.Length.ToString(), "消息");
    }
}</code>

Key points:

• For WPF applications, you need to add references to System.Windows.Forms and System.IO for the FolderBrowserDialog and Directory classes respectively.
• Use the DialogResult.OK status to verify successful folder selection.
• The SelectedPath property provides access to the selected folder path.

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