what is fastest way to change text color?

[Ryan Liu]

Hi,

I want to change keywords text color in a text editor. I select RichTextBox
and use its Select() method to select keywords line by line, one by one,
then change its color.

this.Select(start,length) ;
this.SelectionColor = color ;

But turns out it is very slow for big file. Is there better way to do so?

Thanks a lot in advance!
Ryan

[Nicholas Paldino [.NET/C# MVP]]

Ryan,

You could always write an engine that would parse RTF files and change
the color on the fly. That's the only way I can think of doing it outside
of the RichTextBox.

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Ryan Liu" <ad********@online.sh.cnwrote in message
news:Oh*************@TK2MSFTNGP04.phx.gbl...

Hi,

I want to change keywords text color in a text editor. I select
RichTextBox
and use its Select() method to select keywords line by line, one by one,
then change its color.

this.Select(start,length) ;
this.SelectionColor = color ;

But turns out it is very slow for big file. Is there better way to do so?

Thanks a lot in advance!
Ryan

[Ryan Liu]

Then next question is:

I am try to write my own, but is there classes or open src code to handle
RTF format file in C#?

Thanks a million,
Ryan
"Nicholas Paldino [.NET/C# MVP]" <mv*@spam.guard.caspershouse.comдÈëÓʼþ
news:OG*************@TK2MSFTNGP05.phx.gbl...

Ryan,

You could always write an engine that would parse RTF files and change
the color on the fly. That's the only way I can think of doing it outside
of the RichTextBox.

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Ryan Liu" <ad********@online.sh.cnwrote in message
news:Oh*************@TK2MSFTNGP04.phx.gbl...

Hi,

I want to change keywords text color in a text editor. I select
RichTextBox
and use its Select() method to select keywords line by line, one by one,
then change its color.

this.Select(start,length) ;
this.SelectionColor = color ;

But turns out it is very slow for big file. Is there better way to do

so?

Thanks a lot in advance!
Ryan

[Lebesgue]

How about asking such questions someone who gives answers in milliseconds,
like uncle google? http://www.google.com/search?hl=en&q=rtf+c%23
http://www.codeproject.com/cs/library/nrtftree.asp

"Ryan Liu" <ad********@online.sh.cnwrote in message
news:ea**************@TK2MSFTNGP03.phx.gbl...

Then next question is:

I am try to write my own, but is there classes or open src code to handle
RTF format file in C#?

Thanks a million,
Ryan
"Nicholas Paldino [.NET/C# MVP]" <mv*@spam.guard.caspershouse.com>
дÈëÓʼþ
news:OG*************@TK2MSFTNGP05.phx.gbl...

>Ryan,

You could always write an engine that would parse RTF files and
change
the color on the fly. That's the only way I can think of doing it
outside
of the RichTextBox.

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Ryan Liu" <ad********@online.sh.cnwrote in message
news:Oh*************@TK2MSFTNGP04.phx.gbl...

Hi,

I want to change keywords text color in a text editor. I select
RichTextBox
and use its Select() method to select keywords line by line, one by
one,
then change its color.

this.Select(start,length) ;
this.SelectionColor = color ;

But turns out it is very slow for big file. Is there better way to do

so?

>
Thanks a lot in advance!
Ryan