Replace Existing Text with Inline Element

Updated on Jun 9, 2026

Environment

Version	Product	Author
2020.1.310	RadWordsProcessing	Martin Velikov

Description

This article describes how to replace text with other document elements.

Solution

To achieve this, iterate the document elements of type Run and compare their text with the desired string. If there is a match, store the Run index and insert the desired element (in this example a Break) at that specific index in the Inlines collection. Finally, remove the Run.

csharp

	RadFlowDocumentEditor editor = new RadFlowDocumentEditor(document);
	editor.InsertText("First line");
	editor.InsertText("NewLine");
	editor.InsertText("Second line");

	foreach (Run run in document.EnumerateChildrenOfType<Run>().ToList())
	{
		if (run.Text == "NewLine")
		{
			Paragraph paragraph = run.Paragraph;
			int childIndex = paragraph.Inlines.IndexOf(run);

			Break br = new Break(document);
			br.BreakType = BreakType.LineBreak;
			paragraph.Inlines.Insert(childIndex, br);
			paragraph.Inlines.Remove(run);
		}
	}

See Also

• Run
• Break