如何从javascript调用会话，这是使用c#的代码隐藏创建的

How to call session from javascript which is created using code-behind with c#

本文关键字：代码创建隐藏 javascript 调用会话更新时间：2023-09-26

大家好，我已经在c#中创建了会话，我必须在Javascript中使用它，它正在得到错误，它没有带来正确的会话，请帮助我解决这个问题

Javascript

var terminalid = '<%= Session["TerminalID"] %>';
var hospid = '<%= Session["Hospitalid"] %>';
var terminalid = '<%= Session["TerminalID"] %>';
var userid = '<%= Session["UserID"] %>';
    if (name != '') {
        $.ajax({
            type: "Post",
            contentType: "application/json; charset=utf-8",
            url: "E_Locations.aspx/AddNewLoc",
            data: "{'locname':'" + name + "','hid':'"+hospid+"','tid':'"+terminalid+"','uid':'"+userid+"'}",
            dataType: "json",
            success: function (data) {
 }

c#代码

    Session["TerminalID"] = 180;
    [WebMethod(EnableSession=true)]
    public static string AddNewLoc(string locname,int hid,int tid,int uid)
    {
        string msg = string.Empty;
        using (SqlConnection con = new SqlConnection(constr))
        {
            using (SqlCommand cmd = new SqlCommand("EXECUTE S_BMD_SAVE_Location @FLAG=100, @PK_BioLocationID=0, @LocationNAME='" + locname + "', @HOSPID='" + hid + "', @TERMINALID='"+tid+"', @OPERATORID='"+uid+"'", con))
            {
                con.Open();
                int i = cmd.ExecuteNonQuery();
                con.Close();
                if (i == 1)
                {
                    msg = "true";
                }
                else
                {
                    msg = "false";
                }
            }
        }
        return msg;
    }

这可能会帮助你…

WebForm1.aspx

<script src="../js/jquery.js" type="text/javascript"></script>
    <script>
        $(function () {
            var terminalid = '1';
            var hospid = '2';
            var userid = '4';
            var obj = {};
            obj.terminalid = terminalid;
            obj.hospid = hospid;
            obj.userid = userid;
            $.ajax({
                type: "POST",
                url: "WebForm1.aspx/AddNewLoc",
                data: JSON.stringify(obj),
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: function (result) {
                    console.log(result.d);
                }
            });
        });
    </script>

WebForm1.aspx.cs

        [WebMethod]
        public static string AddNewLoc(string terminalid, string hospid, string userid)
        {
            //access session like this from backend or set sesssion value
            long TerminalID = Convert.ToInt64(HttpContext.Current.Session["TerminalID"]);
            //Do some stuf
            return "true";
        }

try this

string jsFunc = "alert(" + Session["TerminalID"] + ")";
ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), "myJsFn", jsFunc , true);