JS POST 傳值方式：

function PostSubmit(url, para1, para2,para3) {
    var postUrl = url;//提交地址   
    var _para1 = para1;//第一個資料   
    var _para2 = para2;//第二個資料   
    var _para3 = para3;//第三個資料   

    var ExportForm = document.createElement("FORM");
    document.body.appendChild(ExportForm);
    ExportForm.method = "POST";
    var newElement = document.createElement("input");
    newElement.setAttribute("name", "head");
    newElement.setAttribute("type", "hidden");
    var newElement2 = document.createElement("input");
    newElement2.setAttribute("name", "flag");
    newElement2.setAttribute("type", "hidden");
    var newElement3 = document.createElement("input");
    newElement3.setAttribute("name", "url");
    newElement3.setAttribute("type", "hidden");
    ExportForm.appendChild(newElement);
    ExportForm.appendChild(newElement2);
    ExportForm.appendChild(newElement3);
    newElement.value = _para1;
    newElement2.value = _para2;
    newElement3.value = _para3;
    ExportForm.action = postUrl;
    ExportForm.target = "_blank";
    ExportForm.submit();
    document.body.removeChild(ExportForm);

}
 

JS  呼叫

    var headtemp = (document.all("head").innerText);
    var flag = Math.round(Math.random() * 10000);
    var url = (res.value);
    PostSubmit("reportshow.aspx", headtemp, flag, url);

if (Request.Form["head"] != null)
        {
           
            this.Title = Request.Form["head"].ToString();

        }