先提供Demo代碼：（不涉及數據庫，舉例說說我之前犯得錯）【未完善】
ZFQKDT.aspx：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ZFQKDT.aspx.cs" Inherits="YJ_ZFQKDT" %>
<%@ Register Assembly="Microsoft.ReportViewer.WebForms, Version=12.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" Namespace="Microsoft.Reporting.WebForms" TagPrefix="rsweb" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<style type="text/css">
.select2 {
margin-left: -15px;
min-width: 273px;
width: 100px;
}
</style>
<body style="background: #fff;">
<form id="form1" class="form-horizontal" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<div class="page-body">
<div class="row">
<div class="col-lg-12 col-sm-12 col-xs-12">
<div class="widget">
<div class="widget-header bordered-bottom bordered-gold">
<span class="widget-caption">查詢條件</span>
<div class="widget-buttons">
<a href="#" data-toggle="collapse">
<i class="fa fa-minus"></i>
</a>
<a href="#" data-toggle="dispose">
<i class="fa fa-times"></i>
</a>
</div>
</div>
<div class="widget-body bordered-left">
<div class="row">
<div class="col-lg-5 col-md-5 col-sm-12">
<div class="form-group">
<label for="ddlWFLX" class="col-lg-3 col-md-3 col-sm-2 control-label">違法類型</label>
<div class="col-lg-9 col-md-9 col-sm-10">
<div class="col-sm-8">
<select id="ddlWFLX" class ="select2" name="ddlWFLX" multiple="multiple"></select>
<%--<asp:DropDownList ID="ddlWFLX" CssClass="form-control selectpicker" multiple="multiple"
data-live-search="true" runat="server" data-width="100%" data-size="5" AutoPostBack="false" OnTextChanged="ddlWFLX_TextChanged" />--%>
</div>
</div>
</div>
<div class="col-lg-2 col-md-2 col-sm-12">
<div class="buttons-preview" style="text-align: center">
<button id="btn_search" type="button" class="btn btn-primary" οnclick="search('btnSearch')">
<i class="fa fa-search fa-lg"></i>搜索
</button>
<button id="btn_export" type="button" class="btn btn-primary" οnclick="search('btnExport')">
<i class="glyphicon glyphicon-save"></i>導出
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<asp:Button ID="btnSearch" OnClick="btnSearch_Click" OnClientClick="return search();" runat="server" />
<asp:Button ID="btnExport" OnClick="btnExport_Click" OnClientClick="return search();" runat="server" />
</form>
<!--Basic Scripts-->
<script src="/OperManagent/assets/js/jquery-1.9.1.js"></script>
<script src="/OperManagent/assets/js/bootstrap.min.js"></script>
<script>
$(function () {
BindSelect();
});
//綁定字典內容到指定的Select控件
function BindSelect() {
$.ajax({
type: 'get',
dataType: "json",
url: "Ajax.aspx",//SelectItems.aspx/addVal
data: {},
async: true,
success: function (data) {
alert(1);
//$("#ddlWFLX").empty();//清空下拉框
var data1 = data;
//for (var i = 0; i < data.length; i++) {
// control.append("<option value='" + data[i].id + "'>" + data[i].text + "</option>");
//}
//$("#ddlWFLX").val(value);
//$("#ddlWFLX").trigger("change");
},
error: function (e) {
alert(2);
var ex = e;
}
});
}
ZFQKDT.aspx.cs類名與ZFQKDT.aspx頁面的@page標籤的Inherits屬性值一樣：（YJ_ZFQKDT ）
using EPReport.BLL;
using EPReport.Core;
using EPReport.Entity;
using Microsoft.Reporting.WebForms;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class YJ_ZFQKDT : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
}
Ajax.aspx：（可以只有這一行）【Inherits的值其實可以自定義，反正Ajax.aspx.cs的類名要對的上，否則報錯（說不存在對應類）】
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Ajax.aspx.cs" Inherits="Ajax" %>
Ajax.aspx.cs：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.UI;
using System.Web.UI.WebControls;
using EPReport.Core;
public partial class Ajax : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
TestModel model = new TestModel();
model.name = "xv";
model.age = 1;
string json = QueryJson.Serializable<TestModel>(model);
Response.Write(json);
}
//[WebMethod]
//public static String addVal()
//{
// String str = "Hello, world!";
// //Response.Write(str);
// return str;
//}
class TestModel
{
public string name { get; set; }
public int age { get; set; }
}
}