The Rich Text Box: Bold and Italic

We have created an Application called MyNotes with a rich text box, a menu with standard items, and a toolstrip. The rich text box fills the form.

Next we will write the code to name the selected text bold or italics (or both!).

1. Continue with the MyNotes Application.
2. Add another ToolStrip It will be right below the first tool strip.
3. Add a button to the tool strip called ToolStripBold.
4. Download this picture for bold and add it to the button.
5. Add another button called ToolStripItalic and use this picture: .
6. Write the code as shown below:

  Private Sub ToolStripBold_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _ 
    Handles ToolStripBold.Click, ToolStripItalics.Click
        If Not RichTextBox1.SelectionFont Is Nothing Then
            Dim currentFont As System.Drawing.Font = RichTextBox1.SelectionFont
            Dim newFontStyle As System.Drawing.FontStyle
            Dim italic As FontStyle
            Dim bold As FontStyle
            If RichTextBox1.SelectionFont.Bold = True Then
                bold = FontStyle.Bold
            End If
            If RichTextBox1.SelectionFont.Italic = True Then
                italic = FontStyle.Italic
            End If
            If sender Is ToolStripBold Then
                If RichTextBox1.SelectionFont.Bold = True Then
                    bold = FontStyle.Regular
                Else
                    bold = FontStyle.Bold
                End If
            End If
            If sender Is ToolStripItalics Then
                If RichTextBox1.SelectionFont.Italic = True Then
                    italic = FontStyle.Regular 'turn it off
                Else
                    italic = FontStyle.Italic 'turn it on
                End If
            End If
            newFontStyle = bold + italic
            RichTextBox1.SelectionFont = New Font(currentFont.FontFamily, currentFont.Size, newFontStyle)
        End If
    End Sub

7. Click Save All at this point and run the program.
8. Open one of the rtf files you created, select some text and make it bold, italic or both. Experiment!

Experiment: This is a fairly complete application. You can add additional touches such as changing the font and size, add an about box or a splash screen.

INDEX, The Rich Text Box and a Menu, Add a ToolBar, Resize the RichTextBox to fill the Form, Save the contents of the RichText Box, Open a File, Save As, New, Ask to Save, Formatting the Rich Text Box, Code for the complete Rich Text Box Application

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Formatting the Rich Text Box