JoinRunsWithSameFormatting

Paragraph.JoinRunsWithSameFormatting method

Joins runs with the same formatting in the paragraph.

public int JoinRunsWithSameFormatting()

Return Value

Number of joins performed. When N adjacent runs are being joined they count as N - 1 joins.

Examples

Shows how to simplify paragraphs by merging superfluous runs.

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

// Insert four runs of text into the paragraph.
builder.Write("Run 1. ");
builder.Write("Run 2. ");
builder.Write("Run 3. ");
builder.Write("Run 4. ");

// If we open this document in Microsoft Word, the paragraph will look like one seamless text body.
// However, it will consist of four separate runs with the same formatting. Fragmented paragraphs like this
// may occur when we manually edit parts of one paragraph many times in Microsoft Word.
Paragraph para = builder.CurrentParagraph;

Assert.AreEqual(4, para.Runs.Count);

// Change the style of the last run to set it apart from the first three.
para.Runs[3].Font.StyleIdentifier = StyleIdentifier.Emphasis;

// We can run the "JoinRunsWithSameFormatting" method to optimize the document's contents
// by merging similar runs into one, reducing their overall count.
// This method also returns the number of runs that this method merged.
// These two merges occurred to combine Runs #1, #2, and #3,
// while leaving out Run #4 because it has an incompatible style.
Assert.AreEqual(2, para.JoinRunsWithSameFormatting());

// The number of runs left will equal the original count
// minus the number of run merges that the "JoinRunsWithSameFormatting" method carried out.
Assert.AreEqual(2, para.Runs.Count);
Assert.AreEqual("Run 1. Run 2. Run 3. ", para.Runs[0].Text);
Assert.AreEqual("Run 4. ", para.Runs[1].Text);

See Also

Paragraph.InsertField