Save text from rich text box with C#

问题

This question has been answered. I've improved the code a bit (at least I think so). It now reminds of the aceepted answer to the question Open file in rich text box with C#. If I haven't made any mistakes (which I may have), the code should save a file with text from the rich text box rtfMain. The default file extension is .txt. You can also use the file extension .rtf.

private void menuFileSave_Click(object sender, EventArgs e) 
{ 
// Create a new SaveFileDialog object 
using (SaveFileDialog dlgSave = new SaveFileDialog())
  try
  {
    // Default file extension
    dlgSave.DefaultExt = "txt"; 
    // SaveFileDialog title
    dlgSave.Title = "Save File As";
    // Available file extensions
    dlgSave.Filter = "Text Files (*.txt)|*.txt|RTF Files (*.rtf)|*.rtf"; 
    // Show SaveFileDialog box and save file
    if (dlgSave.ShowDialog() == DialogResult.OK) 
    { 
      // Save as .txt file
      if (Path.GetExtension(dlgSave.FileName) == ".txt")
      {
        rtfMain.SaveFile(dlgSave.FileName, RichTextBoxStreamType.PlainText);
      }
      // Save as .rtf file
      if (Path.GetExtension(dlgSave.FileName) == ".rtf")
      {
        rtfMain.SaveFile(dlgSave.FileName, RichTextBoxStreamType.PlainText);
      }
    }
    catch (Exception errorMsg)
    {
      MessageBox.Show(errorMsg.Message);
    }
  }
}
private void rtfMain_TextChanged(object sender, EventArgs e)
{
}

Update: I have improved the code even further (at least I think so). The main difference is that you now have more control over the file encoding. This is the code I'm using right now:

private void fileSave_Click(object sender, EventArgs e)
{
  // Text from the rich textbox rtfMain
  string str = rtfMain.Text;
  // Create a new SaveFileDialog object
  using (SaveFileDialog dlgSave = new SaveFileDialog())
  try
  {
    // Available file extensions
    dlgSave.Filter = "All Files (*.*)|*.*";
    // SaveFileDialog title
    dlgSave.Title = "Save";
    // Show SaveFileDialog
    if (dlgSave.ShowDialog() == DialogResult.OK && dlgSave.FileName.Length > 0)
    {
      // Save file as utf8 without byte order mark (BOM)
      // ref: http://msdn.microsoft.com/en-us/library/s064f8w2.aspx
      UTF8Encoding utf8 = new UTF8Encoding();
      StreamWriter sw = new StreamWriter(dlgSave.FileName, false, utf8);
      sw.Write(str);
      sw.Close();
    }
  }
  catch (Exception errorMsg)
  {
    MessageBox.Show(errorMsg.Message);
  } 
}

回答1:

Like this:

 rtfMain.SaveFile(dlgSave.FileName);

回答2:

Your code here saves .doc files formatted. When I use it to save .docx files it does save it but when I try to open the saved file using Microsoft Word, An error message is displayed.

来源：https://stackoverflow.com/questions/3751929/save-text-from-rich-text-box-with-c-sharp

标签

richtextbox

savefiledialog