hi i am developing a banking software in vb.net...

i have a two maskedtextbox, one textbox named as masktxtdepostdate and , masktxtmaturitydate, txtnoofmonth.

i changed maskedtextbox property as date, in format "YYYY-MM-DD";

now i need to calculate masktxtmaturitydate after entering the values in, masktxtdepostdate and txtnoofmonth.


calculation formula is

masktxtmaturitydate = masktxtdepostdate + txtnoofmonth

for example


masktxtdepostdate.text="2009-05-26" and txtnoofmonth.text= 13
after enering no of months in txtnoofmonth.text i need to calculate maturitydate as

masktxtmaturitydate.text="2010-06-26"

how can i code for this........