问题描述

我的程序设置 "HKCUSoftwareMicrosoftWindowsCurrentVersionExplorerAdvanced" 值为 "Hidden".但是，我无法刷新资源管理器以考虑此更改.我试过了:

My program sets "HKCUSoftwareMicrosoftWindowsCurrentVersionExplorerAdvanced" value "Hidden". Hovewer I'm not able to refresh the explorer to take into account this change. I've tried:

1)

    SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, IntPtr.Zero, IntPtr.Zero);` 

2)

    SHELLSTATE state = new SHELLSTATE(); 
    state.fShowAllObjects = (uint)1; 
    SHGetSetSettings(ref state, SSF.SSF_SHOWALLOBJECTS, true); 

3)

    SendMessageTimeout(HWND_BROADCAST, WM_SETTINGCHANGE, SPI_SETNONCLIENTMETRICS, 0, SMTO_ABORTIFHUNG, 5000, ref dwResult); 

4)

    SendMessage(HWND_BROADCAST, WM_COMMAND, 28931 /* Refresh */, 0); 

没有任何作用.所以我该怎么做?如果我自己用 F5 刷新 Explorer，那么它可以工作.但是我想要一些优雅的解决方案，所以它会在任何地方刷新显示，即使在当前打开的 OpenFile/SaveFile 对话框中也是如此.

Nothing works. So what should I do? If I refresh Explorer myself with F5, then it works. Hovewer I would like some elegant solution, so it would refresh the display everywhere, even in OpenFile/SaveFile dialogs, which are currently open.

我正在使用 C# .NET，Win7.

I'm using C# .NET, Win7.

正如 Anders 所指出的，有一种使用 COM 刷新资源管理器窗口的简单方法:

As Anders pointed out, there is a simple way to refresh explorer windows using COM:

Guid CLSID_ShellApplication = new Guid("13709620-C279-11CE-A49E-444553540000");
Type shellApplicationType = Type.GetTypeFromCLSID(CLSID_ShellApplication, true);
dynamic shellApplication = Activator.CreateInstance(shellApplicationType);
dynamic windows = shellApplication.Windows();
for (int i = 0; i < windows.Count; i++)
    windows.Item(i).Refresh();

所以这部分完成了. 但是我仍然需要刷新 OpenFile/SaveFile 对话框，上面的代码不做那.有人知道如何刷新这些对话框吗?

So this part is done. Hovewer I still need to refresh the OpenFile/SaveFile dialogs, and the code above doesn't do that. Does anybody know how to refresh those dialogs?

重要的一点是，如果我在控制面板的文件夹选项中更改显示隐藏文件"，系统不会刷新那些 OpenFile/SaveFile 对话框，我必须使用 F5 手动刷新它们.我只是在寻找一种如何使用 C# 刷新所有这些对话框的方法，所以我不再需要按 F5...

An important point is that if I change the "Show Hidden Files" in Folder Options in Control panel, those OpenFile/SaveFile dialogs are not refreshed by the system, I must refresh them manually using F5. I'm just looking for a method how to refresh all those dialogs using C#, so I don't need to press F5 anymore...

好的，上面代码的新问题 - 它不仅刷新 Windows 资源管理器，还刷新 Internet Explorer...知道如何仅刷新 Windows 资源管理器吗?

Ok, so new problem with the code above - it refresh not only windows explorers, but also internet explorers... Any idea how to refresh windows explorers ONLY?

推荐答案

我想出了一种方法来检查窗口是否是 Windows 资源管理器窗口，但没有足够的代表来添加评论，所以我想我'd 提交它作为答案来帮助你，因为这个问题帮助了我.

I figured out a way to check if the windows was a Windows Explorer window, and don't have enough of a rep to add a comment so thought I'd submit it as an answer to help you out because this question helped me out.

        // based on http://stackoverflow.com/questions/2488727/refresh-windows-explorer-in-win7
        Guid CLSID_ShellApplication = new Guid("13709620-C279-11CE-A49E-444553540000");
        Type shellApplicationType = Type.GetTypeFromCLSID(CLSID_ShellApplication, true);

        object shellApplication = Activator.CreateInstance(shellApplicationType);
        object windows = shellApplicationType.InvokeMember("Windows", System.Reflection.BindingFlags.InvokeMethod, null, shellApplication, new object[] { });

        Type windowsType = windows.GetType();
        object count = windowsType.InvokeMember("Count", System.Reflection.BindingFlags.GetProperty, null, windows, null);
        for (int i = 0; i < (int)count; i++)
        {
            object item = windowsType.InvokeMember("Item", System.Reflection.BindingFlags.InvokeMethod, null, windows, new object[] { i });
            Type itemType = item.GetType();

            // only refresh windows explorers
            string itemName = (string)itemType.InvokeMember("Name", System.Reflection.BindingFlags.GetProperty, null, item, null);
            if (itemName == "Windows Explorer")
            {
                itemType.InvokeMember("Refresh", System.Reflection.BindingFlags.InvokeMethod, null, item, null);
            }
        }

这篇关于在 Win7 中刷新 Windows 资源管理器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！