Font of Selected text in the RichTextBox Visual Studio 2019 RRS feed

  • Question

  • Good evening! I've got a problem. I need to create a text Editor on VB, where Font can be changed. NOT the whole RichTextBox must be changed - only Selected text.

    Example: I select text and click on "Format -> Font", change a font, click OK - and my selected text is of this Font. Other text must stay the same.

    I extremely need your help!

    Saturday, November 16, 2019 8:22 PM

All replies

  • Hi

    I use a Function to return a valid Font which is then applied to the RTB Selection Font

    RTB.SelectionFont = Choosefont(RTB.SelectionFont)
    	Public Function Choosefont(ByVal fon As Font) As Font
    		Dim c As New FontDialog()
    		c.Font = fon
    		c.ShowColor = False
    		c.ShowApply = True
    		c.ShowEffects = True
    		c.ShowHelp = False
    		If (c.ShowDialog() = Windows.Forms.DialogResult.OK) Then Return c.Font
    		Return fon
    	End Function

    Regards Les, Livingston, Scotland

    Saturday, November 16, 2019 9:07 PM
  • Hi,

    I used the following controls:

    The following effects are achieved:

        Private Sub Openfile_Click(sender As Object, e As EventArgs) Handles Openfile.Click
            Dim file_open As New OpenFileDialog
            file_open.Filter = "Rich Text File (*.rtf)|*.rtf| Plain Text File (*.txt)|*.txt"
            file_open.FilterIndex = 1
            file_open.Title = "Open text or RTF file"
            Dim stream_type As RichTextBoxStreamType
            stream_type = RichTextBoxStreamType.RichText
            If DialogResult.OK = file_open.ShowDialog() Then
                If String.IsNullOrEmpty(file_open.FileName) Then Return
                If file_open.FilterIndex = 2 Then stream_type = RichTextBoxStreamType.PlainText
                RichTextBox1.LoadFile(file_open.FileName, stream_type)
            End If
        End Sub
        Private Sub Font_Click(sender As Object, e As EventArgs) Handles Font.Click
            Dim result As DialogResult = FontDialog1.ShowDialog()
            If result = DialogResult.OK Then
                RichTextBox1.SelectionFont = FontDialog1.Font
            End If
        End Sub

    Hope it be helpful.

    Best Regards,


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    Monday, November 18, 2019 8:40 AM