I have a string like this

Heading Heading Heading Heading Heading Heading Heading Heading Heading Heading Heading Heading Heading Heading Heading Heading

i need to store the emphsis in the dictionary.in the paragraph some words contain italic format i need to store that(italic word)range in dictionary.

i want to store in the dictionary like

 Dictionary sty = new Dictionary();

sty.Add(pRange,it);//it-->italic

sty.Add(pRange,Bl);//Bl-->Bold