ProcessStartInfo.Verbs Properti

Definisi

Ruang nama:

System.Diagnostics

Rakitan:

System.Diagnostics.Process.dll

Sumber:

ProcessStartInfo.Unix.cs

Mendapatkan kumpulan kata kerja yang terkait dengan jenis file yang ditentukan oleh FileName properti .

public:
 property cli::array <System::String ^> ^ Verbs { cli::array <System::String ^> ^ get(); };

public string[] Verbs { get; }

member this.Verbs : string[]

Public ReadOnly Property Verbs As String()

Nilai Properti

String[]

Tindakan yang dapat diterapkan sistem ke file yang ditunjukkan oleh FileName properti .

Contoh

Contoh kode berikut menampilkan kata kerja yang ditentukan untuk nama file yang dipilih. Jika pengguna memilih salah satu kata kerja yang ditentukan, contoh memulai proses baru menggunakan kata kerja yang dipilih dan nama file input.

using System;
using System.ComponentModel;
using System.IO;
using System.Diagnostics;
using System.Windows.Forms;

class ProcessInformation
{
    [STAThread]
    static void Main()
    {
        OpenFileDialog openFileDialog1 = new OpenFileDialog();

        openFileDialog1.InitialDirectory = "c:\\";
        openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
        openFileDialog1.FilterIndex = 2;
        openFileDialog1.RestoreDirectory = true;
        openFileDialog1.CheckFileExists = true;

        if (openFileDialog1.ShowDialog() == DialogResult.OK)
        {
            var fileName = openFileDialog1.FileName;

            int i = 0;
            var startInfo = new ProcessStartInfo(fileName);

            // Display the possible verbs.
            foreach (var verb in startInfo.Verbs)
            {
                Console.WriteLine($"  {i++}. {verb}");
            }

            Console.Write("Select the index of the verb: ");
            var indexInput = Console.ReadLine();
            int index;
            if (Int32.TryParse(indexInput, out index))
            {
                if (index < 0 || index >= i)
                {
                    Console.WriteLine("Invalid index value.");
                    return;
                }

                var verbToUse = startInfo.Verbs[index];

                startInfo.Verb = verbToUse;
                if (verbToUse.ToLower().IndexOf("printto") >= 0)
                {
                    // printto implies a specific printer.  Ask for the network address.
                    // The address must be in the form \\server\printer.
                    // The printer address is passed as the Arguments property.
                    Console.Write("Enter the network address of the target printer: ");
                    var arguments = Console.ReadLine();
                    startInfo.Arguments = arguments;
                }

                try
                {
                    using (var newProcess = new Process())
                    {
                        newProcess.StartInfo = startInfo;
                        newProcess.Start();

                        Console.WriteLine($"{newProcess.ProcessName} for file {fileName} " +
                                          $"started successfully with verb '{startInfo.Verb}'!");
                    }
                }
                catch (Win32Exception e)
                {
                    Console.WriteLine("  Win32Exception caught!");
                    Console.WriteLine($"  Win32 error = {e.Message}");
                }
                catch (InvalidOperationException)
                {
                    // Catch this exception if the process exits quickly,
                    // and the properties are not accessible.
                    Console.WriteLine($"Unable to start '{fileName}' with verb {verbToUse}");
                }
            }
        }
        else
        {
            {
                Console.WriteLine("You did not enter a number.");
            }
        }
    }
}

Imports System.ComponentModel
Imports System.IO
Imports System.Diagnostics
Imports System.Windows.Forms

Module ProcessInformation
    Public Shared Sub Main()
        Dim openFileDialog1 As New OpenFileDialog()

        openFileDialog1.InitialDirectory = "c:\"
        openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*"
        openFileDialog1.FilterIndex = 2
        openFileDialog1.RestoreDirectory = True
        openFileDialog1.CheckFileExists = True

        If openFileDialog1.ShowDialog() = DialogResult.OK Then
            Dim fileName = openFileDialog1.FileName

            Dim i = 0
            Dim startInfo = New ProcessStartInfo(fileName)

            Dim verb As String
            For Each verb In startInfo.Verbs
                ' Display the possible verbs.
                Console.WriteLine($"  {i}. {verb}")
                i += 1
            Next

            Console.Write("Select the index of the verb: ")
            Dim indexInput = Console.ReadLine()
            Dim index As Integer
            If Int32.TryParse(indexInput, index) Then
                If index < 0 OrElse index >= i Then
                    Console.WriteLine("Invalid index value.")
                    Return
                End If

                Dim verbToUse = startInfo.Verbs(Convert.ToInt32(index))

                startInfo.Verb = verbToUse
                If verbToUse.ToLower().IndexOf("printto") >= 0 Then
                    ' printto implies a specific printer.  Ask for the network address.
                    ' The address must be in the form \\server\printer.
                    Console.Write("Enter the network address of the target printer: ")
                    Dim arguments = Console.ReadLine()
                    startInfo.Arguments = arguments
                End If

                Try
                    Using newProcess As New Process
                        newProcess.StartInfo = startInfo
                        newProcess.Start()

                        Console.WriteLine($"{newProcess.ProcessName} for file {fileName} " +
                                          $"started successfully with verb '{startInfo.Verb}'!")
                    End Using
                Catch e As Win32Exception
                    Console.WriteLine("  Win32Exception caught!")
                    Console.WriteLine($"  Win32 error = {e.Message}")
                Catch e As InvalidOperationException
                    Console.WriteLine($"Unable to start '{fileName}' with verb {verbToUse}")
                End Try
            Else
                Console.WriteLine("You did not enter a number.")
            End If
        End If
    End Sub
End Module

Keterangan

Properti Verbs memungkinkan Anda menentukan kata kerja yang dapat digunakan dengan file yang ditentukan oleh FileName properti . Anda dapat mengatur Verb properti ke nilai kata kerja apa pun dalam set. Contoh kata kerja adalah "Edit", "Buka", "OpenAsReadOnly", "Cetak", dan "Printto".

Ketahuilah bahwa daftar kata kerja yang dihasilkan mungkin tidak berisi semua nilai yang mungkin, misalnya "Baru" dirancang tidak ditambahkan ke daftar dan kemungkinan kata kerja lainnya tidak selalu terdeteksi tergantung pada penyiapan sistem Anda.

Saat Anda menggunakan Verbs properti , Anda harus menyertakan ekstensi nama file saat Anda mengatur nilai FileName properti . Ekstensi nama file menentukan kumpulan kemungkinan kata kerja.

Lihat juga

• Verb