Opening a folder in explorer and selecting a file

问题

I\'m trying to open a folder in explorer with a file selected.

The following code produces a file not found exception:

System.Diagnostics.Process.Start(
    \"explorer.exe /select,\" 
    + listView1.SelectedItems[0].SubItems[1].Text + \"\\\\\" 
    + listView1.SelectedItems[0].Text);

How can I get this command to execute in C#?

回答1:

Use this method:

Process.Start(String, String)

First argument is an application (explorer.exe), second method argument are arguments of the application you run.

For example:

in CMD:

explorer.exe -p

in C#:

Process.Start("explorer.exe", "-p")

回答2:

// suppose that we have a test.txt at E:\
string filePath = @"E:\test.txt";
if (!File.Exists(filePath))
{
    return;
}

// combine the arguments together
// it doesn't matter if there is a space after ','
string argument = "/select, \"" + filePath +"\"";

System.Diagnostics.Process.Start("explorer.exe", argument);

回答3:

If your path contains comma's, putting quotes around the path will work when using Process.Start(ProcessStartInfo).

It will NOT work when using Process.Start(string, string) however. It seems like Process.Start(string, string) actually removes the quotes inside of your args.

Here is a simple example that works for me.

string p = @"C:\tmp\this path contains spaces, and,commas\target.txt";
string args = string.Format("/e, /select, \"{0}\"", p);

ProcessStartInfo info = new ProcessStartInfo();
info.FileName = "explorer";
info.Arguments = args;
Process.Start(info);

回答4:

Just my 2 cents worth, if your filename contains spaces, ie "c:\My File Contains Spaces.txt", you'll need to surround the filename with quotes otherwise explorer will assume that the othe words are different arguments...

string argument = "/select, \"" + filePath +"\"";

回答5:

Samuel Yang answer tripped me up, here is my 3 cents worth.

Adrian Hum is right, make sure you put quotes around your filename. Not because it can't handle spaces as zourtney pointed out, but because it will recognize the commas (and possibly other characters) in filenames as separate arguments. So it should look as Adrian Hum suggested.

string argument = "/select, \"" + filePath +"\"";

回答6:

Use "/select,c:\file.txt"

Notice there should be a comma after /select instead of space..

回答7:

Using Process.Start on explorer.exe with the /select argument oddly only works for paths less than 120 characters long.

I had to use a native windows method to get it to work in all cases:

[DllImport("shell32.dll", SetLastError = true)]
public static extern int SHOpenFolderAndSelectItems(IntPtr pidlFolder, uint cidl, [In, MarshalAs(UnmanagedType.LPArray)] IntPtr[] apidl, uint dwFlags);

[DllImport("shell32.dll", SetLastError = true)]
public static extern void SHParseDisplayName([MarshalAs(UnmanagedType.LPWStr)] string name, IntPtr bindingContext, [Out] out IntPtr pidl, uint sfgaoIn, [Out] out uint psfgaoOut);

public static void OpenFolderAndSelectItem(string folderPath, string file)
{
    IntPtr nativeFolder;
    uint psfgaoOut;
    SHParseDisplayName(folderPath, IntPtr.Zero, out nativeFolder, 0, out psfgaoOut);

    if (nativeFolder == IntPtr.Zero)
    {
        // Log error, can't find folder
        return;
    }

    IntPtr nativeFile;
    SHParseDisplayName(Path.Combine(folderPath, file), IntPtr.Zero, out nativeFile, 0, out psfgaoOut);

    IntPtr[] fileArray;
    if (nativeFile == IntPtr.Zero)
    {
        // Open the folder without the file selected if we can't find the file
        fileArray = new IntPtr[0];
    }
    else
    {
        fileArray = new IntPtr[] { nativeFile };
    }

    SHOpenFolderAndSelectItems(nativeFolder, (uint)fileArray.Length, fileArray, 0);

    Marshal.FreeCoTaskMem(nativeFolder);
    if (nativeFile != IntPtr.Zero)
    {
        Marshal.FreeCoTaskMem(nativeFile);
    }
}

回答8:

You need to put the arguments to pass ("/select etc") in the second parameter of the Start method.

回答9:

string windir = Environment.GetEnvironmentVariable("windir");
if (string.IsNullOrEmpty(windir.Trim())) {
    windir = "C:\\Windows\\";
}
if (!windir.EndsWith("\\")) {
    windir += "\\";
}    

FileInfo fileToLocate = null;
fileToLocate = new FileInfo("C:\\Temp\\myfile.txt");

ProcessStartInfo pi = new ProcessStartInfo(windir + "explorer.exe");
pi.Arguments = "/select, \"" + fileToLocate.FullName + "\"";
pi.WindowStyle = ProcessWindowStyle.Normal;
pi.WorkingDirectory = windir;

//Start Process
Process.Start(pi)

回答10:

The most possible reason for it not to find the file is the path having spaces in. For example, it won't find "explorer /select,c:\space space\space.txt".

Just add double quotes before and after the path, like;

explorer /select,"c:\space space\space.txt"

or do the same in C# with

System.Diagnostics.Process.Start("explorer.exe","/select,\"c:\space space\space.txt\"");

回答11:

It might be a bit of a overkill but I like convinience functions so take this one:

    public static void ShowFileInExplorer(FileInfo file) {
        StartProcess("explorer.exe", null, "/select, "+file.FullName.Quote());
    }
    public static Process StartProcess(FileInfo file, params string[] args) => StartProcess(file.FullName, file.DirectoryName, args);
    public static Process StartProcess(string file, string workDir = null, params string[] args) {
        ProcessStartInfo proc = new ProcessStartInfo();
        proc.FileName = file;
        proc.Arguments = string.Join(" ", args);
        Logger.Debug(proc.FileName, proc.Arguments); // Replace with your logging function
        if (workDir != null) {
            proc.WorkingDirectory = workDir;
            Logger.Debug("WorkingDirectory:", proc.WorkingDirectory); // Replace with your logging function
        }
        return Process.Start(proc);
    }

This is the extension function I use as <string>.Quote():

static class Extensions
{
    public static string Quote(this string text)
    {
        return SurroundWith(text, "\"");
    }
    public static string SurroundWith(this string text, string surrounds)
    {
        return surrounds + text + surrounds;
    }
}

来源：https://stackoverflow.com/questions/334630/opening-a-folder-in-explorer-and-selecting-a-file

标签

explorer