Recently I encountered a situation where I was to highlight a word in WPF RichTextBox. So I thought, I should share a small tip to show how to highlight a word (by setting background color) in a WPF Rich TextBox. Here is the code:
/// <summary>/// This method highlights a word with a given color in a WPF RichTextBox/// </summary>/// <param name="richTextBox">RichTextBox Control</param>/// <param name="word">The word which you need to highlighted</param>/// <param name="color">The color with which you highlight</param>private void HighlightWordInRichTextBox(RichTextBox richTextBox, String word, SolidColorBrush color){ //Current word at the pointer TextRange tr = new TextRange(richTextBox.Document.ContentEnd, richTextBox1.Document.ContentEnd); tr.Text = word; tr.ApplyPropertyValue(TextElement.BackgroundProperty, color);}