Respuesta :
The CheckBoxList control is in the System.Web.UI.WebControls namespace (so not winforms!). It has an Items[] indexer to get to the items. Counting starts at 0, so the third item would be:
cblparts.Items[2]
cblparts.Items[2]
Definition. TCO2 rate. (Abbreviation) Test of Carbon Dioxide (CO2) aka Bicarbonate Test. A test devised to measure the amount of carbon dioxide in blood