(1) dropdowslist.selectedIndex=索引值(数字);
(2) dropdownlist.Items.findbyvalue(你的值).selected=true
(3) dropdownlist.Items.findbytext(你的值).selected=true
转载于:https://www.cnblogs.com/wx18638101223/p/9644975.html
(1) dropdowslist.selectedIndex=索引值(数字);
(2) dropdownlist.Items.findbyvalue(你的值).selected=true
(3) dropdownlist.Items.findbytext(你的值).selected=true
转载于:https://www.cnblogs.com/wx18638101223/p/9644975.html