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A.aspxÒ³Ãæ·ÅÒ»¸ödropdownlist£¬ÔÚA.aspx.csÌí¼Ó£º this.drpSchool.Attributes.Add("onchange", "load(this.options[this.selectedIndex].value)");
ÔÚA.aspxÒ³ÃæÌí¼ÓÈçϽű¾£º
function load(state){
var oHttpReq = new ActiveXObject("MSXML2.XMLHTTP");
var oDoc = new ActiveXObject("MSXML2.DOMDocument");
oHttpReq.open("POST", "../B.aspx?state="+state, false);
oHttpReq.send("");
result = oHttpReq.responseText;
oDoc.loadXML(result);
items1 = oDoc.selectNodes("//NewDataSet/Table/dtid");
items2 = oDoc.selectNodes("//NewDataSet/Table/dtname");
var itemsLength=items1.length;
¡¡¡¡for(i=0;i<itemsLength;i++)
//½«Ð¡ÀàµÄÀàÃûºÍ±àºÅ¸³ÓèDropDownList2
¡¡¡¡{
¡¡
¡¡¡¡var newOption = document.createElement("OPTION");
¡¡¡¡newOption.text=items2[i].text;
¡¡¡¡newOption.value=items1[i].text;
¡¡¡¡drp2.options.add(newOption);
¡¡¡¡//¡¡newOption.value=6;
¡¡
¡¡¡¡}
}
B.aspx.csÒ³Ã棺
if (Request.QueryString["state"] != null && Request.QueryString["state"].ToString() != "")
        {
            try
            {
                int shengNo = int.Parse(Request["state"].ToString());
                // int shengNo = 1;
                DataSet ds = new DataSet();
                db dbb = new db();
                ds = dbb.GetDataSet(SQLÓï¾ä);
              if (ds.Tables[0].Rows.Count > 0)
              &nb