在WPF Framework 4.5.2中找不到OpenfileDialog的Win32程序集

Question

我嘗試在.NET4.5.2的WPF項目中編寫“打開/保存文件對話框”的代碼。 我找到了基於Win32.OpenFileDialog的解決方案。

我使用Win8.1（x64），但在Visual Studio 2015社區的程序集中找不到任何Win32條目。

有可以下載檔案的地方嗎？ 我該如何以其他方式管理我的“打開/保存對話框”？

Answer 1

我相信它在PresentationFramework程序集中：

namespace Microsoft.Win32
{
//
// Summary:
//     Represents a common dialog box that allows a user to specify a filename for one
//     or more files to open.
public sealed class OpenFileDialog : FileDialog
{
    //
    // Summary:
    //     Initializes a new instance of the Microsoft.Win32.OpenFileDialog class.
    [SecurityCritical]
    public OpenFileDialog();

    //
    // Summary:
    //     Gets or sets an option indicating whether Microsoft.Win32.OpenFileDialog allows
    //     users to select multiple files.
    //
    // Returns:
    //     true if multiple selections are allowed; otherwise, false. The default is false.
    public bool Multiselect { get; set; }
    //
    // Summary:
    //     Gets or sets a value indicating whether the read-only check box displayed by
    //     Microsoft.Win32.OpenFileDialog is selected.
    //
    // Returns:
    //     true if the checkbox is selected; otherwise, false. The default is false.
    public bool ReadOnlyChecked { get; set; }
    //
    // Summary:
    //     Gets or sets a value indicating whether Microsoft.Win32.OpenFileDialog contains
    //     a read-only check box.
    //
    // Returns:
    //     true if the checkbox is displayed; otherwise, false. The default is false.
    public bool ShowReadOnly { get; set; }

    //
    // Summary:
    //     Opens a read-only stream for the file that is selected by the user using Microsoft.Win32.OpenFileDialog.
    //
    // Returns:
    //     A new System.IO.Stream that contains the selected file.
    //
    // Exceptions:
    //   T:System.InvalidOperationException:
    //     No files were selected in the dialog.
    [SecurityCritical]
    public Stream OpenFile();
    //
    // Summary:
    //     Creates an array that contains one read-only stream for each file selected by
    //     the user using Microsoft.Win32.OpenFileDialog.
    //
    // Returns:
    //     An array of multiple new System.IO.Stream objects that contain the selected files.
    //
    // Exceptions:
    //   T:System.InvalidOperationException:
    //     No files were selected in the dialog.
    [SecurityCritical]
    public Stream[] OpenFiles();
    //
    // Summary:
    //     Resets all Microsoft.Win32.OpenFileDialog properties to their default values.
    [SecurityCritical]
    public override void Reset();
    [SecurityCritical]
    [SecurityTreatAsSafe]
    protected override void CheckPermissionsToShowDialog();
}
}

如果需要更好的對話框來選擇目錄 ，則需要一個Microsoft.WindowsAPICodePack Nuget包：

using Microsoft.WindowsAPICodePack.Dialogs;
using System.IO;
// ....
       var browserDialog = new CommonOpenFileDialog();
        browserDialog.IsFolderPicker = true;
        browserDialog.Title = Title;
// ---

Answer 2

您需要在項目中向PresentationFramework.dll添加引用

然后，您可以簡單地使用：

private Microsoft.Win32.SaveFileDialog saveDialog = new SaveFileDialog();