动态创建form传参

方法一：

前台写js方法，并在前台调用

//点击图标按钮切换到密码修改页面。
function OpenChangePassword(){
        var uname = document.getElementById("txtUsername").value;
        document.write("<form action='Logon.aspx' method='post' name='formx1' style='display:none'>");
        document.write("<input type='hidden' name='ChangePwd' value='1'/>");
        document.write("<input type='hidden' name='LoginUserCode' value='" + uname+ "'/>");
        document.write("</form>");
        document.formx1.submit();
}

方法二：

前台写js方法，在后台调用

js脚本

 function PostToChangePwdPage(isaddPwdExpire,uname) {
        var tempForm = document.createElement("form");
        tempForm.action = "Logon.aspx";
        tempForm.method = "post";
        document.body.appendChild(tempForm);
            if (isaddPwdExpire=="1") {
        var tempInput3 = document.createElement("input");
        tempInput3.type = "hidden";
        tempInput3.name = "PasswordExpire";
        tempInput3.value = "1"; 　  
        tempForm.appendChild(tempInput3);
            }
        var tempInput = document.createElement("input");
        tempInput.type = "hidden";
        tempInput.name = "changePwd";
        tempInput.value = "1"; 　  
        tempForm.appendChild(tempInput);
        var tempInput2 = document.createElement("input");
        tempInput2.type = "hidden";
        tempInput2.name = "LoginUserCode";
        tempInput2.value = uname;　  
        tempForm.appendChild(tempInput2);
        //submit　the　form　  
        tempForm.submit();
        
        }

*.cs页面调用

 ClientScript.RegisterStartupScript(ClientScript.GetType(), "myscript", "<script>PostToChangePwdPage(" + isExpire + ",'" + txtUsername.Value + "');</script>");