property Item.Bold as Boolean
Sets or returns whether or not the item should appear in bold.

TypeDescription
Boolean A boolean expression that specifies whether or not the item should appear in bold. 
Use the Bold property to bold an item. Use the <b> HTML tag in Caption property to specify parts that should appear in bold. Use the Italic property to specify that item should appear in italic. Use the StrikeOut property to specify that item should appear in strikeout.  Use the Underline property to specify that item should appear in underline.