怎么将数据和dropdownlist绑定

如何将数据和dropdownlist绑定
如何将数据和dropdownlist绑定
高手帮忙解答一下啊!

[解决办法]

dropdownlist1.DataSource = 数据源
dropdownlist1.DataTextField = "name ";
dropdownlist1.DataValueField = "id ";
dropdownlist1.DataBind();

[解决办法]
dropDownList1.DataValueField = "值字段 ";
dropDownList1.DataTextField = "显示字段 ";
[解决办法]
dropDownList1.DataSource = dt;
dropDownList1.DataBind();
[解决办法]
for(int i=0;i < dt.Rows.Count;i++)
{
dropDownList1.Items.Add(new ListItem(dt.Rows[i][ " "],dt.Rows[i][ " "]));
}