Set Multiple style in Richtexbox font

For example,

if your fontstyle is bold, then when you set italic, there are many people make mistakes,

and looses bold style while applying bold effect.

Solution:

  

            //store the current font style

            FontStyle fs = richTextBox1.Font.Style;

            // now you can store all the style whichever you want

            fs = fs | FontStyle.Bold|FontStyle.Italic; 

            //now you can use this fontstyle to apply style of text content.

            richTextBox1.Font  = new Font("verdana",10.8f, fs);