How to retain Colors in my Richtextbox even after Replacing
<p>I have Richtexbox with some texts and markup tags, i color it based on the Tags to different colors in form load, coloring of texts/tags works fine,</p>

<p>Problem now is when i tried to replace some Text inside My RTFbox, after coloring, the Color seems to vanish everywhere,</p>

<p>I want to retain all the coloring's i did even after any kind of replacements/Editing's in richtextbox, kindly help </p>