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MatchCase Property

Summary

Indicates whether to use case matching when searching for text.

Syntax
C#
C++/CLI
public bool MatchCase { get; set; } 
public: 
   property bool MatchCase 
   { 
      bool get() 
      void set(bool value) 
   } 

Property Value

true to use case matching when searching for text; otherwise, false. Default value is false.

Remarks

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.

Example
C#
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 necessary 
text.AutoGetText = true; 
 
// We will find all matches of "LEAD", ignoring the case 
var options = new DocumentViewerFindText(); 
 
// The text 
options.Text = "LEAD"; 
// Ignore case 
options.MatchCase = false; 
// Any word that contains the phrase 
options.WholeWordsOnly = false; 
 
// Find all results in the bounds, not just the first 
options.FindAll = true; 
 
// Highlight the results in the View 
options.RenderResults = true; 
// Optionally change the highlight color 
//DocumentViewerText.FoundTextBrush = new SolidBrush(Color.FromArgb(52, Color.Brown)); 
 
// Set the bounds 
bool 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 page 
var 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); 
   else 
      options.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(); 
 
// Search 
var results = text.Find(options); 
int resultsCount = results != null ? results.Count : 0; 
 
if (resultsCount > 0) 
   Console.WriteLine(string.Format("Found {0} results", resultsCount)); 
else 
   Console.WriteLine("No matches found."); 
Requirements

Target Platforms

Help Version 22.0.2023.1.30
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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.Document.Viewer.WinForms Assembly

Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.