This article will only show you how to use the COM object library in C#, so you can easily convert a DOC file into different formats that are supported by Microsoft Word. This could be accomplished by using the Microsoft Word 10.0 Object library. You can add this library by using the menu bar of .NET IDE, that is Project – Add Reference…- COM, here you can add the reference to the Microsoft Word 10.0 Object library for your code & it is necessary for the conversion. By adding this library as a reference in your project, you can now use the Word namespace which will allow you to do all the stuff. So it is necessary to add this reference into your project.
Word
The following code shows how to convert DOC to RTF. You can convert to any format which is supported by MS Word by only changing the type of Target file.
type
Target
using System;
namespace DocConvert
{
class DoctoRtf
{
static void Main()
{
//Creating the instance of Word Application
Word.Application newApp = new Word.Application();
// specifying the Source & Target file names
object Source="c:\\abc\\Source.doc";
object Target="c:\\abc\\Target.rtf";
// Use for the parameter whose type are not known or
// say Missing
object Unknown =Type.Missing;
// Source document open here
// Additional Parameters are not known so that are
// set as a missing type
newApp.Documents.Open(ref Source,ref Unknown,
ref Unknown,ref Unknown,ref Unknown,
ref Unknown,ref Unknown,ref Unknown,
ref Unknown,ref Unknown,ref Unknown,
ref Unknown,ref Unknown,ref Unknown,ref Unknown);
// Specifying the format in which you want the output file
object format = Word.WdSaveFormat.wdFormatRTF;
//Changing the format of the document
newApp.ActiveDocument.SaveAs(ref Target,ref format,
ref Unknown,ref Unknown,ref Unknown,
ref Unknown,ref Unknown,ref Unknown,
ref Unknown,ref Unknown,ref Unknown,
ref Unknown,ref Unknown,ref Unknown,
ref Unknown,ref Unknown);
// for closing the application
newApp.Quit(ref Unknown,ref Unknown,ref Unknown);
}
}
}
If you want to convert the particular file, then you have to first open that file. You can do this by using the Documents class in the Word namespace & then call the Open method which has a number of parameters, out of which source filename is important. Others you can say as missing. Then use the ActiveDocument’s SaveAs to save the file in a target format and lastly close all the documents by using Quit.
Documents
Open
ActiveDocument
SaveAs
Quit
Make sure that you include the reference to Microsoft Word 10.0 object library in your code; otherwise the compiler will flag error for the Word namespace.
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newApp.ActiveDocument.Close(ref Unknown, ref Unknown, ref Unknown);
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