How to highlight particular text in Rich Text Box?

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Dear Friends,
Good morning to all...

I will be very thankful to u ,if u give solution for the below question

I am developing window application to edit pdf content.for example I have one textbox field for getting keyword and one richtextbox field for getting paragaph.

if the keyword(ie.,value of textbox) exist in paragraph,we need to highlight the text in paragraph field(ie.,richtextbox).any suggestion for this?

Posted 22-Feb-13 19:03pm

jai_mca

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aliwpf · Answer 1 · 2013-02-22T20:04:00

Hi.Try This Method.If you are working with WPF.

<richtextbox x:name="MainRichTextBox" selectionchanged="MainRichTextBox_SelectionChanged" xmlns:x="#unknown">

and your code behind:

private void MainRichTextBox_SelectionChanged(object sender, RoutedEventArgs e)
{
RichTextBox richTextBox = e.OriginalSource as RichTextBox;
richTextBox.SelectionBrush = Brushes.Yellow;

//for access to your RichTextBox content
TextRange textRange = new TextRange(richTextBox.Document.ContentStart, richTextBox.Document.ContentEnd);
if (textRange.Text.Contains("TextBox"))
{
//Put your policy code here for changing Foreground color
}
}
I hope this help you.
Good Luck

uspatel · Answer 2 · 2013-02-22T19:56:00

Solution 1

Hope these links will help you
http://www.dotnetcurry.com/ShowArticle.aspx?ID=146[^]
http://social.msdn.microsoft.com/Forums/en-US/winforms/thread/8683fec1-f269-45a3-9dd7-6e73e6be464f/[^]

Posted 22-Feb-13 19:56pm

uspatel

Comments

jai_mca 23-Feb-13 2:20am

thanks a lot Uma..i have one doubt.after the text got selected with color,when we double click it the sentence which the word exist need to load in another rtb box.is it possible?which event used for that?

uspatel 23-Feb-13 2:29am

http://stackoverflow.com//questions/10746121/richtextbox-select-line-on-click

try this

jai_mca 23-Feb-13 4:07am

i just wanted to select the sentence when i double click highlighted text in rich text box.how can i do in double click event??