i want to choose the maximum value from the combo box in the vb.net.?
i have items already added. so i want to take a decision to take largest of them when i have integer data only.

iterate through the combo box
forget the details
look at the combo box properties and iterate though the collection holding the values
bear in mind the columns property starts at base 0 so if you have two columns per row in the combo the first column is actually column(0)

What did you bind the combo box to?

of course the 'other' technique would be to declare a form variable andset that to the maximum value each time you tinker with the combo box

Try listindex(-1) <-- puesdo code....