Question how to find the line number?

[saichong]

hi all

i am using

For Each line As String In Me.RichTextBox1.Lines
            If line.Contains(TextBox1.Text) Then
                RichTextBox1.Select(startindex, line.Length)
                TextBox2.Text = RichTextBox1.SelectedText
            End If
            startindex += line.Length + 1
Next

but i want to know how to find the number of line that contain my search result?

 

[jmcilhinney]

Take a look at the documentation for the RichTextBox. I can't remember the names off-hand but it has lots of methods for finding line and character numbers in various ways.

 

[JohnH]

RichTextBox.GetLineFromCharIndex Method (System.Windows.Forms)

or

For lineNum As Integer = 0 To Me.RichTextBoxData.Lines.Count - 1
    Dim line As String = Me.RichTextBoxData.Lines(lineNum)
    If line.Contains(SearchTextBox.Text) Then
        ResultsTextBox.AppendText((lineNum + 1) & ": " & line & vbNewLine)
    End If
Next

Note the control naming