[2005] RichTextBox / Error

[tylerm]

I have a richtextbox on my form and when I have text like this:

Welcome
Test normal
Test bold

• Test Bold - Test Bullet
• Test Normal - Test Bullet

Header
http://www.rattlesoft.com


Sincerely,
Header

It causes an error when selecting it or changing format options. Lets say if I wanted to change the font, it would throw an error:

[Bulldog]

At first glance your code looks ok, as a quick test put;

MessageBox.Show(FormatFont.SelectedItem.ToString)

just before the line where you show the error. What is the result from that when the error occurs? (I haven't tried it but I'm wondering whether you should be checking for FormatFont.Items.Count > 0 And FormatFont.SelectedIndex >= 0 instead of Not FormatFont.SelectedItem Is Nothing)

[tylerm]

At first glance your code looks ok, as a quick test put;

MessageBox.Show(FormatFont.SelectedItem.ToString)

just before the line where you show the error. What is the result from that when the error occurs? (I haven't tried it but I'm wondering whether you should be checking for FormatFont.Items.Count > 0 And FormatFont.SelectedIndex >= 0 instead of Not FormatFont.SelectedItem Is Nothing)

The message reports the selected item which in this case was "Arial". The FormatFont object is a combo box item, at least derived from the combo box.

The error still fires when I add those 2 if statements.

[tylerm]

I believe the problem is with this: formSoftware.RTFOBject.SelectionFont.Size

I added a message box that stated the size of the selected font and it through and error.

Dim f As Font = New Font(FormatFont.SelectedItem.ToString(), formSoftware.RTFObject.SelectionFont.Size)

Change to:

Dim f As Font = New Font(FormatFont.SelectedItem.ToString(), "12")

It works fine, but it doesn't solve the problem which is that the size should stay the same.

[Bulldog]

What is RTFObject defined as? (eg. is it an Object, Control, Component?)

[tylerm]

RTFObject is a RichTextBox (Its not actually a control). I have 2 RTF boxes that when focused, set RTFObject to themselves.

[Bulldog]

So you do define RTFObject like this?

        'At top level
        Dim RTFObject As RichTextBox

        'In the sub/function level
        RTFObject = RichTextBox1
        'Create a new selection font, keeping the existing size
        Dim f As Font = New Font(Me.Font.FontFamily, Me.RTFObject.SelectionFont.Size)
        'Use the new font for the RTFObject
        RTFObject.SelectionFont = f

This works ok for me. Without seeing your code, I would guess your not declaring RTFObject at the top (Class) level.