private void pdfViewer1_SearchCompleted(object sender, Apitron.PDF.Controls.SearchCompletedEventArgs e)
 {
     if (e.SearchResultItem == null)
     {
         MessageBox.Show("The requested text wasn't found in this document", "EOB Scanning");
     }
 }
        private void pdfViewer1_SearchRequested(object sender, Apitron.PDF.Controls.SearchRequestedEventArgs e)
        {
            if (!string.IsNullOrEmpty(loadedFilePath))
            {
                SearchIndex searchIndex;

                // so we have created the index already
                if (searchDictionary.TryGetValue(loadedFilePath, out searchIndex))
                {
                    e.SearchIndex = searchIndex;
                }
                else
                {
                    searchIndex = new SearchIndex(File.OpenRead(loadedFilePath));
                    searchDictionary.Add(loadedFilePath, searchIndex);

                    e.SearchIndex = searchIndex;
                }
            }

        }