How to set properties to generate CSS
in C# and VB.Net.


Complete code 

using System;
using System.IO;
using System.Text;

namespace Sample
{
    class sample
    {
        static void Main(string[] args)
        {
            string inpFile = @"..\..\example.rtf";
            string outFileInlineCSS = @"Inline CSS.html";
            string outFileClassCSS = @"Class CSS.html";

            SautinSoft.RtfToHtml r = new SautinSoft.RtfToHtml();

            // Skip images.
            r.ImageStyle.PreserveImages = false;

            try
            {
                r.OpenRtf(inpFile);

                // Specify the title.
                r.TextStyle.Title = "Inline CSS";

                // Generate inline CSS.
                r.TextStyle.InlineCSS = true;

                // Convert to HTML.
                r.ToHtml(outFileInlineCSS);

                // Specify the title.
                r.TextStyle.Title = "Class CSS";

                // Store CSS using the attribute "class".            
                r.TextStyle.InlineCSS = false;
                r.TextStyle.StyleName = "style";
                r.TextStyle.StartCSSNumber = 100;

                // Convert to HTML.
                r.ToHtml(outFileClassCSS);

                // Open the results for demonstration purposes.
                System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFileInlineCSS)
                { UseShellExecute = true });
                System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFileClassCSS)
                { UseShellExecute = true });
            }
            catch (Exception e)
            {
                Console.WriteLine($"Error: {e.Message}");
                Console.WriteLine("Press any key ...");
                Console.ReadKey();
            }
        }
    }
}

Download. 

        
            Imports System
Imports System.IO
Imports System.Text

Namespace Sample
    Friend Class sample
        Shared Sub Main(ByVal args() As String)
            Dim inpFile As String = "..\..\example.rtf"
            Dim outFileInlineCSS As String = "Inline CSS.html"
            Dim outFileClassCSS As String = "Class CSS.html"

            Dim r As New SautinSoft.RtfToHtml()

            ' Skip images.
            r.ImageStyle.PreserveImages = False

            Try
                r.OpenRtf(inpFile)

                ' Specify the title.
                r.TextStyle.Title = "Inline CSS"

                ' Generate inline CSS.
                r.TextStyle.InlineCSS = True

                ' Convert to HTML.
                r.ToHtml(outFileInlineCSS)

                ' Specify the title.
                r.TextStyle.Title = "Class CSS"

                ' Store CSS using the attribute "class".            
                r.TextStyle.InlineCSS = False
                r.TextStyle.StyleName = "style"
                r.TextStyle.StartCSSNumber = 100

                ' Convert to HTML.
                r.ToHtml(outFileClassCSS)

                ' Open the results for demonstration purposes.
                System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(outFileInlineCSS) With {.UseShellExecute = True})
                System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(outFileClassCSS) With {.UseShellExecute = True})
            Catch e As Exception
                Console.WriteLine($"Error: {e.Message}")
                Console.WriteLine("Press any key ...")
                Console.ReadKey()
            End Try
        End Sub
    End Class
End Namespace

Download.

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