Visual Studio 2005 on Japanese

Does anyone know how I can express inputted japanese character-numbers, (１２３４５６７８９０) as normal integer values (1234567890)

if im writing an application for a japanese user and they enter on the form in a textbox "７", in the japanese font, how can i convert this as intger 7?

if i get the textbox.text value, it doesnt convert to an intger, even the char datatype doesnt like it.

>>6
thats just repeating what you learned in the first pages of K&R, a book that every programmer should read and im too ignorant to read "books"
doesnt answer my question

here let me make some more posts without punctuation and eventually post some code without code tags