一个动态生成脚本的例子

cs代码 DataSet ds=new DataSet(); ClassBasic cb=new ClassBasic(); ds=cb.GetCustomtwo(str); flag=int.Parse(ds.Tables[0].Rows[0].ItemArray[4].ToString()); //身份标志 int i=0; DataSet MyprovinceDs=new DataSet (); DataSet SubvalDs=new DataSet (); DataSet SubcityDs=new DataSet (); //初始化 MyprovinceDs=cb.Prov(); SubvalDs=cb.City(); SubcityDs=cb.Coun(); Province.DataTextField ="Province"; Province.DataValueField ="Province"; Province.DataSource =MyprovinceDs; Province.DataBind (); System.Web.UI.WebControls.ListItem pitem=new ListItem (); pitem.Text ="-请选择省-"; pitem.Value ="-请选择省-"; pitem.Selected=true; Province.Items.Add(pitem); if (!Page.IsClientScriptBlockRegistered("ClientSel")) { StringBuilder sb=new StringBuilder (); sb.Append ("/n"); Page.RegisterClientScriptBlock("ClientSel",sb.ToString ()); Province.Attributes.Add("onchange","changeselect2(this," + City.ClientID +","+Contry.ClientID +")"); City.Attributes.Add("onchange","changeselect3(this," +Contry.ClientID +")");
html代码
所 在 地：  -请选择省-* -请选择市-* -请选择区县-