Find and Highlight text by code

[Tommaso]

Q1 2012

VS 2010

The following snippet does not run.

private void HightlightText(string textToHighlight)
{
    DocumentTextSearch search = new DocumentTextSearch(this.radRichTextBox.Document);
    foreach (var textRange in search.FindAll(textToHighlight))
    {
        this.radRichTextBox.Document.Selection.AddSelectionStart(textRange.StartPosition);
        this.radRichTextBox.Document.Selection.AddSelectionStart(textRange.EndPosition);
        this.radRichTextBox.ChangeTextHighlightColor(Color.Red);
    }
}

How can I highlight with red color all the occurrences of the text?

Tommaso

[Svett]

Hi Tommaso,

Thank you for writing.

You can use the following code snippet to select the desired words in the RadRichTextBox:

private void HightlightText(string textToHighlight)
{
    DocumentTextSearch search = new DocumentTextSearch(this.radRichTextBox1.Document);
    foreach (var textRange in search.FindAll(textToHighlight))
    {
        this.radRichTextBox1.Document.Selection.AddSelectionStart(textRange.StartPosition);
        this.radRichTextBox1.Document.Selection.AddSelectionEnd(textRange.EndPosition);
        this.radRichTextBox1.ChangeTextHighlightColor(Color.Red);
    }
}

I hope this helps.

Greetings,
Svett
the Telerik team