from date+ end date= total number of days

Hai: i have 3 textbox in vb, its name was textbox1.text, textbox2.text, and textbox3.text, i want to display the total days in the third textbox, in first textbox i have from date eg: 05/06/2005, and in second textbox i have end date: 06/05/2009, in that third textbox i want to display the total days between from date to end date. pls send the source code for it in vb or vba