ApplyParagraphFormat

public ParagraphFormat ApplyParagraphFormat { get; }

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

builder.Writeln("Every paragraph that ends with a full stop like this one will be right aligned.");
builder.Writeln("This one will not!");
builder.Write("This one also will.");

ParagraphCollection paragraphs = doc.FirstSection.Body.Paragraphs;

Assert.AreEqual(ParagraphAlignment.Left, paragraphs[0].ParagraphFormat.Alignment);
Assert.AreEqual(ParagraphAlignment.Left, paragraphs[1].ParagraphFormat.Alignment);
Assert.AreEqual(ParagraphAlignment.Left, paragraphs[2].ParagraphFormat.Alignment);

// We can use a "FindReplaceOptions" object to modify the find-and-replace process.
FindReplaceOptions options = new FindReplaceOptions();

// Set the "Alignment" property to "ParagraphAlignment.Right" to right-align every paragraph
// that contains a match that the find-and-replace operation finds.
options.ApplyParagraphFormat.Alignment = ParagraphAlignment.Right;

// Replace every full stop that is right before a paragraph break with an exclamation point.
int count = doc.Range.Replace(".&p", "!&p", options);

Assert.AreEqual(2, count);
Assert.AreEqual(ParagraphAlignment.Right, paragraphs[0].ParagraphFormat.Alignment);
Assert.AreEqual(ParagraphAlignment.Left, paragraphs[1].ParagraphFormat.Alignment);
Assert.AreEqual(ParagraphAlignment.Right, paragraphs[2].ParagraphFormat.Alignment);
Assert.AreEqual("Every paragraph that ends with a full stop like this one will be right aligned!\r" +
                "This one will not!\r" +
                "This one also will!", doc.GetText().Trim());