How to: Find Text Using a Keyboard Shortcut

  • 2 minutes to read

This example shows how to execute the Find Next action by pressing the F3 shortcut.

To do this, handle the PdfViewerControl.KeyDown event. If the F3 key is pressed, call the PdfViewerControl.FindText method and pass the search parameters represented by the TextSearchParameter object (e.g, search text, whole words, case sensitive).

using System.Windows;
using System.Windows.Input;
using DevExpress.Xpf.DocumentViewer;

namespace FindText {
    public partial class MainWindow : Window {
        public MainWindow() {
            InitializeComponent();
            viewer.OpenDocument(@"..\..\Demo.pdf");
        }

        private void viewer_KeyDown(object sender, KeyEventArgs e) {
            if (e.Key == Key.F3) {
                TextSearchParameter parameters = new TextSearchParameter {
                    IsCaseSensitive = true,
                    WholeWord = true,
                    Text = "Viewer"
                };
                viewer.FindText(parameters);
            }
        }
    }
}