How to read Word Paragraph Line by Line in C#? - wpf

Question

I am trying to read word content line by line. But I am facing an issue. When trying to read paragraph. If paragraph content is multi line. I am getting single line internally. Can any one please help me on this.
Expected Output:
Line 1 - > TERM BHFKGBHFGFKJHGKJSHFKG ABC1 IOUTOYTIUYRUYTIREYTU B08
Line 2 - > NBHFBHDFGJDSBHKHDGFJGJGDJK 3993 JBHKJSFGSDKFJDGFJKDSBF3993
Line 3 - > JHBJKFHKJGDGFSFGB08 HGHGGFGFDGJFFFDSGFABC1 JJBVHGHDFTERM
Line 4 - > TERMBHFKGBHFGFKJHGKJSHFKG ABC1IOUTOYTIUYRUYTIREYTU B08NBHFBHDFGJDSBHKHDGFJGJGDJK
Line 5 - > 39931234567890987654321
Actual Output:
Single Line -> TERM BHFKGBHFGFKJHGKJSHFKG ABC1 IOUTOYTIUYRUYTIREYTU B08 NBHFBHDFGJDSBHKHDGFJGJGDJK 3993 JBHKJSFGSDKFJDGFJKDSBF3993 JHBJKFHKJGDGFSFGB08 HGHGGFGFDGJFFFDSGFABC1 JJBVHGHDFTERM
TERMBHFKGBHFGFKJHGKJSHFKG ABC1IOUTOYTIUYRUYTIREYTU B08NBHFBHDFGJDSBHKHDGFJGJGDJK
39931234567890987654321
Below is my code sample:
OpenXml:
using (WordprocessingDocument doc = WordprocessingDocument.Open(fs, false))
{
var bodyText = doc.MainDocumentPart.Document.Body;
if (bodyText.ChildElements.Count > 0)
{
foreach (var items in bodyText)
{
if (items is Paragraph)
{
var par = items.InnerText;
}
}
}
}
Office.Interop
object nullobj = System.Reflection.Missing.Value;
Word.Application app = new Word.Application();
Word.Document doc = app.Documents.Open(FilePath, ref nullobj, FileAccess.Read,
ref nullobj, ref nullobj, ref nullobj,
ref nullobj, ref nullobj, ref nullobj,
ref nullobj, ref nullobj, ref nullobj,
ref nullobj, ref nullobj, ref nullobj);
foreach (Word.Paragraph paragraph in doc.Paragraphs)
{
var line = paragraph.Range.Text;
}

Answer 1

It is not possible to determine individual lines in the closed file. Lines are dynamically generated when a document is opened in Word and where a line "breaks" depends on many factors - it's not necessarily the same from system profile to system profile. So it's necessary to use the interop, not Open XML to pick up where lines break on the screen.
What's more, the Word object model does not provide "Line" objects for this very reason - there is no "line", only a visual representation of how the page will print, given the current printer driver and version of Windows.
The only part of the Word object model that recognizes "lines" is Selection, as this works solely with what's displayed on the screen.
The following code demonstrates how this can be done.
First, since Selection is being worked with and this is visible on-screen, ScreenUpdating is disabled in order to reduce screen flicker and speed up processing. (Note that working with selections is generally much slower than other object model processing.)
Using ComputeStatistics the number of lines in a paragraph is determined. An array (you can also use a list or anything else) to contain the lines is instantiated. The paragraph range is "collapsed" to its starting point and visually selected.
Now the lines in the paragraph are looped, based on the number of lines. The selection is extended (MoveEnd method) by one line (again, moving by lines is only available to a selection) and the selected text written to the array (or whatever).
Finally, screen updating is turned back on.
wdApp.ScreenUpdating = false;
foreach (Word.Paragraph para in doc.Paragraphs)
{
Word.Range rng = para.Range;
int lNumLines = rng.ComputeStatistics(Word.WdStatistic.wdStatisticLines);
string[] aLines = new String[lNumLines];
rng.Collapse(Word.WdCollapseDirection.wdCollapseStart);
rng.Select();
for (int i = 0; i < lNumLines; i++)
{
wdApp.Selection.MoveEnd(Unit: Word.WdUnits.wdLine, Count: 1);
aLines[i] = wdApp.Selection.Text;
wdApp.Selection.Collapse(Word.WdCollapseDirection.wdCollapseEnd);
}
for (int i = 0; i < aLines.Length; i++)
{
Debug.Print(aLines[i]);
}
}
wdApp.ScreenUpdating = true;

Answer 2

In Word, a paragraph is a sinle line of text. Change the size of the print area (e.g. change the margins and/or page size) or the font/point size and the text reflows accordingly. Moerover, since Word uses the active printer driver to optimise the page layout, what exists on a given line in one computer may not exist on the same line on another computer.
Depending on your requirements, though, you could employ Word's predefined '\Line' bookmark to navigate between lines or the Rectangle.Lines property.