Indicates whether to use case matching when searching for text.
public bool MatchCase { get; set; }
true to use case matching when searching for text; otherwise, false. Default value is false.
When this option is false, then the viewer will internally compares the lower case of Text against the lower case of the text in the pages. Note that lower case matching might not work in all languages.
using Leadtools;using Leadtools.Controls;using Leadtools.Document;using Leadtools.Document.Viewer;using Leadtools.Codecs;using Leadtools.Caching;using Leadtools.Annotations.Engine;using Leadtools.Ocr;var text = _documentViewer.Text;// Make sure we get the page text if necessarytext.AutoGetText = true;// We will find all matches of "LEAD", ignoring the casevar options = new DocumentViewerFindText();// The textoptions.Text = "LEAD";// Ignore caseoptions.MatchCase = false;// Any word that contains the phraseoptions.WholeWordsOnly = false;// Find all results in the bounds, not just the firstoptions.FindAll = true;// Highlight the results in the Viewoptions.RenderResults = true;// Optionally change the highlight color//DocumentViewerText.FoundTextBrush = new SolidBrush(Color.FromArgb(52, Color.Brown));// Set the boundsbool isFindingNext = true;// We set the bounds as the whole document, but below we can specify to start wherever text is selected// or at the current pagevar topOfFirstPage = DocumentViewerTextPosition.CreateBeginOfPage(1);var bottomOfLastPage = DocumentViewerTextPosition.CreateEndOfPage(_documentViewer.PageCount);if (isFindingNext){// Make the beginning bound "higher up" the page so we search "down" the page.options.BeginPosition = topOfFirstPage;options.EndPosition = bottomOfLastPage;}else{// Make the beginning bound "lower down" the page so we search "up" the page.options.BeginPosition = bottomOfLastPage;options.EndPosition = topOfFirstPage;}// Select the first result in the View (automatically scrolls View also)options.SelectFirstResult = true;if (text.HasAnySelectedText){// Setting this value to AfterSelection allows us to search forward from the selection, so multiple// uses of this same options object will cycle us through all the matches!// (If no selected text actually exists, search will default to beginPosition.)options.Start = DocumentViewerFindTextStart.AfterSelection;}else{// We could start at the begin position, but it makes more UI sense to start from the user's current page.// Search will loop back around to the begin position - this just changes the starting point and order of results.options.Start = DocumentViewerFindTextStart.ManualPosition;if (isFindingNext)options.ManualStartPosition = DocumentViewerTextPosition.CreateBeginOfPage(_documentViewer.CurrentPageNumber);elseoptions.ManualStartPosition = DocumentViewerTextPosition.CreateEndOfPage(_documentViewer.CurrentPageNumber);}// If we were just looking for the first match, we could use "Loop" to loop around// if we found nothing between the start position and the end bound.//options.Loop = true;// You will likely want to clear the previous highlighted results// on the screen so only our new results will show.text.ClearRenderedFoundText();// Searchvar results = text.Find(options);int resultsCount = results != null ? results.Count : 0;if (resultsCount > 0)Console.WriteLine(string.Format("Found {0} results", resultsCount));elseConsole.WriteLine("No matches found.");