There are numerous examples of Syntax Highlighting using RegEx floating over the web but all are way too length and complicated codes for someone fairly new to
Vb.net.
I found this code which uses Strings
Code:
Private Sub RichTextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RichTextBox1.TextChanged
Dim words As New List(Of String)
words.Add("<html>")
words.Add("<body>")
If RichTextBox1.Text.Length > 0 Then
Dim selectStart As Integer = RichTextBox1.SelectionStart
RichTextBox1.Select(0, RichTextBox1.Text.Length)
RichTextBox1.SelectionColor = Color.Black
RichTextBox1.DeselectAll()
For Each oneWord As String In words
Dim pos As Integer = 0
Do While RichTextBox1.Text.ToUpper.IndexOf(oneWord.ToUpper, pos) >= 0
pos = RichTextBox1.Text.ToUpper.IndexOf(oneWord.ToUpper, pos)
RichTextBox1.Select(pos, oneWord.Length)
RichTextBox1.SelectionColor = Color.Blue
pos += 1
Loop
Next
RichTextBox1.SelectionStart = selectStart
End If
End Sub
I wanted to use Regular Expressions using something like
Code:
Dim words As New List(Of Regex)
words.Add(New Regex("<html.*?>", RegexOptions.IgnoreCase))
but nothing worked out as indexOf() or similar position finding functions would take Strings and not Expressions.
![RegEx Syntax Highlighting in RTB [VB.net]](http://www.thinkdigit.com/forum/iconimages/programming/regex-syntax-highlighting-rtb-vbulletin-net_ltr.gif)
RegEx Syntax Highlighting in RTB [VB.net]
Linear Mode
