c# - is there a way to read a word document line by line

Question

I am trying to extract all the words in a Word document. I am able to do it all in one go as follows...

Word.Application word = new Word.Application();
doc = word.Documents.Open(@"C:SampleText.doc");
doc.Activate();

foreach (Word.Range docRange in doc.Words) // loads all words in document
{
    IEnumerable<string> sortedSubstrings = Enumerable.Range(0, docRange.Text.Trim().Length)
        .Select(i => docRange.Text.Substring(i))
        .OrderBy(s => s.Length < 3 ? s : s.Remove(2, Math.Min(s.Length - 2, 2)));

    wordPosition =
        (int)
        docRange.get_Information(
            Microsoft.Office.Interop.Word.WdInformation.wdFirstCharacterColumnNumber);

    foreach (var substring in sortedSubstrings)
    {
        index = docRange.Text.IndexOf(substring) + wordPosition;
        charLocation[index] = substring;
    }
}

However I would have preferred to load the document one line at a time... is it possible to do so?

I can load it by paragraph however I am unable to iterate through the paragraphs to extract all words.

foreach (Word.Paragraph para in doc.Paragraphs)
{
    foreach (Word.Range docRange in para) // Error: type Word.para is not enumeranle**
    {
        IEnumerable<string> sortedSubstrings = Enumerable.Range(0, docRange.Text.Trim().Length)
            .Select(i => docRange.Text.Substring(i))
            .OrderBy(s => s.Length < 3 ? s : s.Remove(2, Math.Min(s.Length - 2, 2)));

        wordPosition =
            (int)
            docRange.get_Information(
                Microsoft.Office.Interop.Word.WdInformation.wdFirstCharacterColumnNumber);

        foreach (var substring in sortedSubstrings)
        {
            index = docRange.Text.IndexOf(substring) + wordPosition;
            charLocation[index] = substring;
        }

    }
}

Answer 1

This helps in you getting string line by line.

    object file = Path.GetDirectoryName(Application.ExecutablePath) + @"Answer.doc";

    Word.Application wordObject = new Word.ApplicationClass();
    wordObject.Visible = false;

    object nullobject = Missing.Value;
    Word.Document docs = wordObject.Documents.Open
        (ref file, ref nullobject, ref nullobject, ref nullobject,
        ref nullobject, ref nullobject, ref nullobject, ref nullobject,
        ref nullobject, ref nullobject, ref nullobject, ref nullobject,
        ref nullobject, ref nullobject, ref nullobject, ref nullobject);

    String strLine;
    bool bolEOF = false;

    docs.Characters[1].Select();

    int index = 0;
    do
    {
        object unit = Word.WdUnits.wdLine;
        object count = 1;
        wordObject.Selection.MoveEnd(ref unit, ref count);

        strLine = wordObject.Selection.Text;
        richTextBox1.Text += ++index + " - " + strLine + "
"; //for our understanding

        object direction = Word.WdCollapseDirection.wdCollapseEnd;
        wordObject.Selection.Collapse(ref direction);

        if (wordObject.Selection.Bookmarks.Exists(@"EndOfDoc"))
            bolEOF = true;
    } while (!bolEOF);

    docs.Close(ref nullobject, ref nullobject, ref nullobject);
    wordObject.Quit(ref nullobject, ref nullobject, ref nullobject);
    docs = null;
    wordObject = null;

Here's the genius behind the code. Follow the link for some more explanation on how it works.