EndPosition Property (original) (raw)
Summary
Indicates one of the bounds of the Find Text operation.
Syntax
Property Value
A DocumentViewerTextPosition object indicating the page number and index of the bottom of the text search. The default value is null, which indicates the bottom of the last page of the document.
Example
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.");