We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy.
Unfortunately, activation email could not send to your email. Please try again.

How do I create an application to highlight all the lines containing a search string using EditControl ?


You could iterate through every line in the EditControl and highlight each line with the search string as shown in the code below.


searchStr = this.textBox1.Text;

IBackgroundFormat format = this.editControl1.RegisterBackColorFormat(ColorTranslator.FromHtml("#FFBF34"), Color.Transparent);

int currentLine = 0;

for (int i=1; i<=this.editControl1.PhysicalLineCount; i++)


ILexemLine line = this.editControl1.GetLine(i);

foreach (ILexem lexem in line.LineLexems)


if (lexem.Text == searchStr)


if ((i != currentLine) || (i==0))

this.editControl1.SetLineBackColor(i, true, format);

currentLine = i;





searchStr = Me.textBox1.Text

Dim format As IBackgroundFormat = Me.editControl1.RegisterBackColorFormat(ColorTranslator.FromHtml("#FFBF34"), Color.Transparent)

Dim currentLine As Integer = 0

Dim i As Integer

For i = 1 To Me.editControl1.PhysicalLineCount

Dim line As ILexemLine = Me.editControl1.GetLine(i)

Dim lexem As ILexem

For Each lexem In line.LineLexems

If lexem.Text = searchStr Then

If i <> currentLine OrElse i = 0 Then

Me.editControl1.SetLineBackColor(i, True, format)

End If

currentLine = i

End If

Next lexem

Next i

Please refer to the test sample attached below for additional information in this regard.

Article ID: Published Date: Last Revised Date: Platform: Control:
373 04/30/2011 07/10/2014 Windows Forms EditControl
Did you find this information helpful?
Add Comment
You must log in to leave a comment

You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.