.NET下dropdownlist的基本操作

//List列中索引的赋值

teacher.DataValueField = ds.Tables[0].Columns["pidcord"].ColumnName;

//List列中下拉框值的赋值(显示的值)

teacher.DataTextField = ds.Tables[0].Columns["pname"].ColumnName;

teacher.DataBind();

//调用dropdownlist的下拉框文本选择值

teacher.SelectedItem.Text.ToString()

//调用dropdownlist选择值的索引

teacher.SelectedValue ;