RichTextBox - Remove A Style While Maintaining Any Others Applied?
Mar 6, 2010
I have the [B] [I] [U] buttons and they work to a point but here is the problem I'm having.In MS Word,I can Hilight text and select Bold and it bolds the text, I can then select Italic and while leaving it bold, it Italicizes it.I can then click the bold button again and it will remove the bold but leave the selected text Italicized. I can't figure out how to get this action to work.I know I can OR the styles to apply multiple styles to the text but I don't know how to remove a style while maintaining any others applied.Here's a section of code that I'm messing with.[code]....btw, I am using for the comments so that the code is easier to read.I have tried (in this specific segment) newFontStyle = currentFont.Style And Not FontStyle.Bold
I'm having trouble adjusting the font style in a RichTextBox and I've seen a few different approaches that talk about single attributes (like toggling bold on and off)... but I'm trying to make it so that my font class can adjust any attribute (bold, italic, underline).
I realize that Font.Style is a set of Boolean flags (a bitfield?)... but I'm not sure how to handle the attributes all at once.
Here is the troublesome code:
Public Sub ModifyFontStyle(Optional ByVal Plain As Object = Nothing, Optional ByVal Bold As Object = Nothing, _ Optional ByVal Italics As Object = Nothing, Optional ByVal Underlined As Object = Nothing)
[Code]....
What is happening to the font? The text should be underlined and in italics not strikethrough...
Is this a logic error or a simple misunderstanding on my part?
"This is a test . This is the second test . This is the third test . This is the final test"I know how to do this using SelectionStart etc. However this limits what I want to domagine that the 4 sentences are stored in an array, where array(0) should be always bold,array(1) italic, array(2) underline and array(3) normal.
this code does the change, but I noticed a little unwanted effect.if you have some text mark up for esample 24pt, selected. and run this code. you will lose the mark up.
Private Sub Styles_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnBold.Click, BtnItalic.Click, BtnUnderline.Click, BtnStrikeOut.Click
Static styleValue As Integer = 0 Const bold As Integer = 1, Italic As Integer = 2, UnderLine As Integer = 4, StrikeOut As Integer = 8 'Since more than 1 button is attached to this event, the if statement will sort out what button was pressed to fire this event If TypeOf (sender) Is Button Then
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Laura Philips Jaime Jarvis Rachel Dawkins
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[Code]....
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