Man, I have try that but it doesnt seams to work, in the 5 textbox it just add the value of the others like it was a string value, but I want it as a numeric, I want to ADD the values of the previos 4 textboxes and in the 5 I want to add the result by clicking on a button.

Thanks for the code, but I cant seam to get it, I hate being a newbie at this.