is there a way to read a word document line by line

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)
        {
    开发者_开发技巧        index = docRange.Text.IndexOf(substring) + wordPosition;
            charLocation[index] = substring;
        }

    }
}

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 + "\r\n"; //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.

I would suggest following the code on this page here

The crux of it is that you read it with a Word.ApplicationClass (Microsoft.Interop.Word) object, although where he's getting the "Doc" object is beyond me. I would assume you create it with the ApplicationClass.

EDIT: Document is retrieved by calling this:

Word.Document doc = wordApp.Documents.Open(ref file, ref nullobj, ref nullobj,
                                      ref nullobj, ref nullobj, ref nullobj,
                                      ref nullobj, ref nullobj, ref nullobj,
                                      ref nullobj, ref nullobj, ref nullobj);

Sadly the formatting of the code on the page I linked wasn't all to easy.

EDIT2: From there you can loop through doc paragraphs, however as far as I can see there is no way of looping through lines. I would suggest using some pattern matching to find linebreaks.

In order to extract the text from a paragraph, use Word.Paragraph.Range.Text, this will return all the text inside a paragraph. Then you must search for linebreak characters. I'd use string.IndexOf().

Alternatively, if by lines you want to extract one sentence at a time, you can simply iterate through Range.Sentences

        Microsoft.Office.Interop.Word.Application word = new Microsoft.Office.Interop.Word.Application();
        object miss = System.Reflection.Missing.Value;
        object path = @"D:\viewstate.docx";
        object readOnly = true;
        Microsoft.Office.Interop.Word.Document docs = word.Documents.Open(ref path, ref miss, ref readOnly, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss, ref miss);
        string totaltext = "";

        object unit = Microsoft.Office.Interop.Word.WdUnits.wdLine;
        object count = 1;
        word.Selection.MoveEnd(ref unit, ref count);
        totaltext = word.Selection.Text;

        TextBox1.Text = totaltext;
        docs.Close(ref miss, ref miss, ref miss);
        word.Quit(ref miss, ref miss, ref miss);
        docs = null;
        word = null;

Increment the count for each line

I recommend using DocX library. It is lightweight and doesn't require Word to be installed on the machine. Here is the code that use to get text line by line :

using(DocX doc = DocX.Load("sample.docx"))
{
     for (int i = 0; i < doc.Paragraphs.Count; i++ )
     {
          foreach (var item in doc.Paragraphs[i].Text.Split(new string[]{"\n"}
                    , StringSplitOptions.RemoveEmptyEntries))
          {
                Console.WriteLine(item);
          }
     }
}