sorry need better explanation, for the columns it is quantity, description, value, and make/model, so i would have to say the double(type of variable) is going to be value and quantity(though i know no one would put a .1 for quantity). and the string of course would be description and make/model. hopefully that clears : )
Sorry last thing i want to add, the form 2 which has the textboxes, also has a button, so when the user clicks on the button, the textbox fields which have information are suppose to be populated in the correct columns, do i add thelistview1.items.add(lvi);
do I add that code into the button?
I think you should work with DataGridView instead of ListView. LV doesn't work for you at all. Search MSDN for "DataGridView" and you will get some great samples of it.
For your 2nd question, you need only to set the fields and close the 2nd form, that's all. Values will automatically pass to the 1st form.