如何在.NET中打开记事本中的文本？

Question

当我单击Windows窗体表单上的按钮时,我想打开一个记事本窗口,其中包含窗体上TextBox控件的文本.

我怎样才能做到这一点？

Answer 1

试试这个:

System.IO.File.WriteAllText(@"C:\test.txt", textBox.Text);
System.Diagnostics.Process.Start(@"C:\test.txt");

Answer 2

您不需要使用此字符串创建文件.您可以使用P/Invoke来解决您的问题.

NotepadHelper类的用法:

NotepadHelper.ShowMessage("My message...", "My Title");

NotepadHelper 班级代码:

using System;
using System.Runtime.InteropServices;
using System.Diagnostics;

namespace Notepad
{
    public static class NotepadHelper
    {
        [DllImport("user32.dll", EntryPoint = "SetWindowText")]
        private static extern int SetWindowText(IntPtr hWnd, string text);

        [DllImport("user32.dll", EntryPoint = "FindWindowEx")]
        private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);

        [DllImport("User32.dll", EntryPoint = "SendMessage")]
        private static extern int SendMessage(IntPtr hWnd, int uMsg, int wParam, string lParam);

        public static void ShowMessage(string message = null, string title = null)
        {
            Process notepad = Process.Start(new ProcessStartInfo("notepad.exe"));
            if (notepad != null)
            {
                notepad.WaitForInputIdle();

                if (!string.IsNullOrEmpty(title))
                    SetWindowText(notepad.MainWindowHandle, title);

                if (!string.IsNullOrEmpty(message))
                {
                    IntPtr child = FindWindowEx(notepad.MainWindowHandle, new IntPtr(0), "Edit", null);
                    SendMessage(child, 0x000C, 0, message);
                }
            }
        }
    }
}

参考文献(pinvoke.net和msdn.microsoft.com):

SetWindowText:pinvoke | MSDN

FindWindowEx:pinvoke | MSDN

SendMessage:pinvoke | MSDN

Answer 3

使用File.WriteAllText以下方法将文件保存到磁盘

File.WriteAllText("path to text file", myTextBox.Text);

然后用Process.Start它在记事本中打开它:

Process.Start("path to notepad.exe", "path to text file");