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//首先绑定
dropdownlist1.DataSource = .....;
dropdownlist1.DataTextField = "_Name";
dropdownlist1.DataValueField = "ID";
dropdownlist1.DataBind();
//找到显示的项 显示出来
for (int i = 0; i < dropdownlist1.Items.Count; i++)
{
if (dropdownlist1.Items[i].Text == "河南")
{
dropdownlist1.Items[i].Selected = true;
break;
}
}
//首先绑定
dropdownlist1.DataSource = .....;
dropdownlist1.DataTextField = "_Name";
dropdownlist1.DataValueField = "ID";
dropdownlist1.DataBind();
//找到显示的项 显示出来
for (int i = 0; i < dropdownlist1.Items.Count; i++)
{
if (dropdownlist1.Items[i].Text == "你想显示的值")
{
dropdownlist1.Items[i].Selected = true;
break;
}
}