這邊貼上練習用的Source Code,
利用jquery.ajax()用異步(asynchronous)，用Post的方式，抓取資料庫的資料。
Ajax.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Ajax.aspx.cs" Inherits="Ajax_Ajax" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="../js/jquery-1.8.3.js"></script>
<script>
function SendData() {
$.ajax({
url: "../Ajax/GetData.aspx",
method:"POST",
data: "Date=" + $("#txtDate").val() + "&Code=" + $("#txtCode").val(),
async: true,
dataType: "Json",
success: function (data) {
var obj = JSON.stringify(data);
var mapData = JSON.parse(obj);
$("#area").val(obj);
}
});
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input type="text" id="txtDate">
<input type="text" id="txtCode">
<input type="button" onclick="SendData()" value="Send"/>
<textarea id="area"></textarea>
</div>
</form>
</body>
</html>
GetData.aspx.cs
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Newtonsoft.Json;
public partial class Ajax_GetData : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString["Date"] != null && Request.QueryString["Code"] != null)
{
DateTime Date;
DateTime.TryParse(Request.QueryString["Date"], out Date);
string Code = Request.QueryString["Code"];
DataSet ds = new DataSet("Test");
SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["testConnection"].ConnectionString);
SqlCommand cmd = new SqlCommand("[dbo].[DetailsInfo]", connection);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("@Date", SqlDbType.DateTime).Value = Date;
cmd.Parameters.Add("@Code", SqlDbType.NVarChar, 50).Value = Code;
connection.Open();
SqlDataAdapter adapter = new SqlDataAdapter();
adapter.SelectCommand = cmd;
adapter.Fill(ds);
Response.Write(JsonConvert.SerializeObject(ds));
}
}
}