How to load a RTF document in C# and VB.Net

How to load a RTF document in C# and VB.Net

  1. Load from a file:
    
    DocumentCore dc = DocumentCore.Load(@"d:\Book.rtf");
    
    The dc object represents a document loaded into memory. The file format is detected automatically from the file extension: ".rtf".

    After loading you'll get the document presented as the Tree Of Objects, where the root node is DocumentCore class.

    To guarantee that a loadable content is really RTF and set some loading options, use RtfLoadOptions as 2nd parameter.

    
    DocumentCore dc = DocumentCore.Load(@"d:\Book.rtf", new RtfLoadOptions());
    
  2. Load using a memory:
    
                // Let us say we already have a RTF document as array of bytes.
                DocumentCore dc = null;
                using (MemoryStream rtfStream = new MemoryStream(rtfBytes))
                {
                    dc = DocumentCore.Load(rtfStream, new RtfLoadOptions());
                }
                // Here we can do with our document 'dc' anything we need.
    
 

Complete code

using System;
using System.IO;
using SautinSoft.Document;

namespace Example
{
    class Program
    {
       
        static void Main(string[] args)
        {
            //LoadRtfFromStream();
            LoadRtfFromFile();
        }

        /// <summary>
        /// Loads an RTF document into DocumentCore (dc) from a file.
        /// </summary>
        /// <remarks>
        /// Details: https://www.sautinsoft.com/products/document/examples/load-rtf-document-net-csharp-vb.php
        /// </remarks>
        static void LoadRtfFromFile()
        {
            string filePath = @"..\..\example.rtf";

            // The file format is detected automatically from the file extension: ".rtf".
            // But as shown in the example below, we can specify RtfLoadOptions as 2nd parameter
            // to explicitly set that a loadable document has RTF format.
            DocumentCore dc = DocumentCore.Load(filePath);

            if (dc != null)
                Console.WriteLine("Loaded successfully!");
            Console.ReadKey();
        }

        /// <summary>
        /// Loads an RTF document into DocumentCore (dc) from a file.
        /// </summary>
        /// <remarks>
        /// Details: https://www.sautinsoft.com/products/document/examples/load-rtf-document-net-csharp-vb.php
        /// </remarks>
        static void LoadRtfFromStream()
        {
            // Get document bytes.
            byte[] fileBytes = File.ReadAllBytes(@"..\..\example.rtf");

            DocumentCore dc = null;

            // Create a MemoryStream
            using (MemoryStream ms = new MemoryStream(fileBytes))
            {
                // Load a document from the MemoryStream.
                // Specifying RtfLoadOptions we explicitly set that a loadable document is RTF.
                dc = DocumentCore.Load(ms, new RtfLoadOptions());
            }
            if (dc != null)
                Console.WriteLine("Loaded successfully!");
            Console.ReadKey();
        }
    }
}

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            Imports System
Imports System.IO
Imports SautinSoft.Document

Module Sample
    Sub Main()
        'LoadRtfFromStream();
        LoadRtfFromFile()
    End Sub

    ''' <summary>
    ''' Loads an RTF document into DocumentCore (dc) from a file.
    ''' </summary>
    ''' <remarks>
    ''' Details: https://www.sautinsoft.com/products/document/examples/load-rtf-document-net-csharp-vb.php
    ''' </remarks>
    Sub LoadRtfFromFile()
        Dim filePath As String = "..\example.rtf"

        ' The file format is detected automatically from the file extension: ".rtf".
        ' But as shown in the example below, we can specify RtfLoadOptions as 2nd parameter
        ' to explicitly set that a loadable document has RTF format.
        Dim dc As DocumentCore = DocumentCore.Load(filePath)

        If dc IsNot Nothing Then
            Console.WriteLine("Loaded successfully!")
            Console.ReadKey()
        End If
    End Sub

    ''' <summary>
    ''' Loads an RTF document into DocumentCore (dc) from a file.
    ''' </summary>
    ''' <remarks>
    ''' Details: https://www.sautinsoft.com/products/document/examples/load-rtf-document-net-csharp-vb.php
    ''' </remarks>
    Sub LoadRtfFromStream()
        ' Get document bytes.
        Dim fileBytes() As Byte = File.ReadAllBytes("..\example.rtf")

        Dim dc As DocumentCore = Nothing

        ' Create a MemoryStream
        Using ms As New MemoryStream(fileBytes)
            ' Load a document from the MemoryStream.
            ' Specifying RtfLoadOptions we explicitly set that a loadable document is RTF.
            dc = DocumentCore.Load(ms, New RtfLoadOptions())
        End Using
        If dc IsNot Nothing Then
            Console.WriteLine("Loaded successfully!")
            Console.ReadKey()
        End If
    End Sub
End Module

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