Hello Michael,

Thank you for posting in our community. This issue is not specific for our controls. I can suggest you to use column formatters (please take a look at the live sample - http://es.infragistics.com/products/jquery/sample/grid/column-formatter )  and to replace <, > and /  with their ANSII symbols. You may also find this question helpful - http://stackoverflow.com/questions/692123/escape-tags-in-html 


Please let me know if you need further assistance with this issue.