C # convert RTF to plain text

In. NET Framework, you can use Control creation supports RTF and allows users to apply the format to text word processors in WYSIWIG mode.

You can also use Programmatically remove the RTF code from the document to convert the document to plain text. You do not need to embed this control in Windows Forms to perform such operations.

Use the RichTextBox Control in the project

1. Add a reference to system. Windows. Forms. dll.

2. (Optional) Add the using command to the system. Windows. Forms namespace ).

Example

The following example provides an example RTF file to be converted. The file contains the RTF format, such as the font information, four Unicode characters and four extended ASCII characters. This file is opened and transmitted , As text retrieval, in And output to a UTF-8 format file.

    // Save the following RTF file to the same folder as your .exe file, and call it "test.rtf".
    /*
    {\rtf1\ansi\ansicpg1252\deff0\deflang1033{\fonttbl{\f0\fswiss\fcharset0 Arial;}{\f1\fnil\fprq1\fcharset0 Courier New;}{\f2\fswiss\fprq2\fcharset0 Arial;}}
{\colortbl ;\red0\green128\blue0;\red0\green0\blue0;}
{\*\generator Msftedit 5.41.21.2508;}\viewkind4\uc1\pard\f0\fs20 This is the \i Greek \i0 word "psyche": \cf1\f1\u968?\u965?\u967?\u942?\cf2\f2 . It is encoded in Unicode.\par
Here are four extended \b ASCII \b0 characters (Windows code page 1252):  \'e2\'e4\u1233?\'e5\cf0\par
}
*/
class ConvertFromRTF
    {
static void Main()
        {

string path = @"test2.rtf";

//Create the RichTextBox. (Requires a reference to System.Windows.Forms.dll.)
            System.Windows.Forms.RichTextBox rtBox = new System.Windows.Forms.RichTextBox();

// Get the contents of the RTF file. Note that when it is
// stored in the string, it is encoded as UTF-16.
            string s = System.IO.File.ReadAllText(path);

// Display the RTF text.
            System.Windows.Forms.MessageBox.Show(s);

// Convert the RTF to plain text.
            rtBox.Rtf = s;
string plainText = rtBox.Text;

// Display plain text output in MessageBox because console
// cannot display Greek letters.
            System.Windows.Forms.MessageBox.Show(plainText);

// Output plain text to file, encoded as UTF-8.
            System.IO.File.WriteAllText(@"output.txt", plainText);
        }
    }