部署后webmethod无法正常工作

Question

我有两个下拉列表（＆＃34;＃MainContent_Alerts_Grid1_ddlCaseTypeNew＆＃34;，＆＃34;＃MainContent_Alerts_Grid1_ddlCaseNew＆＃34;）

我正在使用ajax填充＆＃34;＃MainContent_Alerts_Grid1_ddlCaseNew＆＃34;

<asp:DropDownList Width="95%" ID="ddlCaseNew"
                            runat="server" DataValueField="Id" />

关于改变＆＃34;＃MainContent_Alerts_Grid1_ddlCaseTypeNew＆＃34;

<asp:DropDownList Width="95%" ID="ddlCaseTypeNew"
                            runat="server" DataValueField="Id" OnSelectedIndexChanged="ddlCaseTypeNew_SelectedIndexChanged">
                            <asp:ListItem Value="0">Select</asp:ListItem>
                            <asp:ListItem Value="1">C</asp:ListItem>
                            <asp:ListItem Value="2">D</asp:ListItem>
                            <asp:ListItem Value="3">P</asp:ListItem>
                            <asp:ListItem Value="4">T</asp:ListItem>
                            <asp:ListItem Value="5">I</asp:ListItem>
                            <asp:ListItem Value="6">R</asp:ListItem>
                        </asp:DropDownList>

这是我的代码

$("#MainContent_Alerts_Grid1_ddlCaseTypeNew").change(function () {
            var dynamicURL = document.location.href.indexOf('AliAndAssociates');
            var ddl = document.getElementById("MainContent_Alerts_Grid1_ddlCaseTypeNew");
            var ParentID = ddl.options[ddl.selectedIndex].value;

            dynamicURL = document.location.href.substring(0, dynamicURL) + 'AliAndAssociates/' + 'ApplicationForms/DashBoard/Dashboard.aspx/GetCases';
            $.ajax({
                type: "POST",
                url: "" + dynamicURL + "",
                data: "{'ParentID': '" + ParentID + "'}",
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: OnCaseSuccess,
                failure: function (response) {
                    Message = response.d;
                }
            });

            return false;
        });

        function OnCaseSuccess(response) {

            var jsonp = response.d;
            var lang = '';
            var obj = $.parseJSON(jsonp);
            $("#MainContent_Alerts_Grid1_ddlCaseNew").empty();
            $.each(obj, function () {
                var optionhtml = '<option value="' + this['Id'] + '">' + this['Description'] + '</option>';
                $("#MainContent_Alerts_Grid1_ddlCaseNew").append(optionhtml);
            });

        }

这是我的网络方法

static public string GetCases(string ParentID)
        {
            LegalFilesContext context = new LegalFilesContext();
            Int64 id = Convert.ToInt64(ParentID);
            DataTable dtCorr = new DataTable();
            List<IntellectualPropertyCase> Cases = (from b in context.IntellectualPropertyCases
                                                    .Include("CaseMemo")
                                                        .Include("CaseMemo.Corporate")
                                                    where b.IntellectualPropertyTypeId == id select b).ToList();

            dtCorr.Columns.Add("Id");
            dtCorr.Columns.Add("Description");

            DataRow Row = dtCorr.NewRow();
            Row[0] = 0;
            Row[1] = "Please Select";
            dtCorr.Rows.Add(Row);


            for (int a = 0; a < Cases.Count; a++)
            {
                if (Cases[a].CaseMemo.Corporate.Description != null)
                {
                    DataRow newRow = dtCorr.NewRow();
                    if (Cases[a].Id == 0)
                        newRow[0] = 0;
                    else
                        newRow[0] = Cases[a].Id;
                    newRow[1] = Cases[a].CaseMemo.Corporate.Description;
                    dtCorr.Rows.Add(newRow);
                }

            }
            string JSONChild = JsonConvert.SerializeObject(dtCorr);
            return JSONChild;
        }

代码在我的计算机上正常工作，但在部署后无法正常工作。