InfoPath Dev

well we only generate the XML at runtime and will notbe able to make edits to XSL. Is it possible to make a textbox readonly if a checkbox is clicked or in response to click of some other ui element?  

"Clear Formatting" option that is available from Format-> Font-> Clear Formatting When a area is choosen and clear Formatting is clicked, it would act the same as outlook's "Copy only Text" when something is being pasted from somewhere else into outlook. What i am trying to accomplish is to try and remove ...

When some text is pasted into a richtext box in Infopath form, is it possible to call the "Clear Formatting" option programatically?

I understand that the XSN form is what controls the UI elements on a Infopath form and the XML itself is just a data container. In my case, i merely create the XML programtically. I was wondering if i can set some element in the XML using which i can make a control readonly. Is it possible?