使用Ajax和Jquery实现GridView的展开、合并

需求简介：[/b]电子商务网站中，查询会员的订单，点击“會員”，展现此会员的订单列表。Demo

界面操作：[/b]

Step 1 展现会员列表，如下图

function showhide(master,detail,customerId)
{
//First child of master div is the image
var src = $(master).children()[0].src;
//Switch image from (+) to (-) or vice versa.
if(src.endsWith("plus.png"))
src = src.replace('plus.png','minus.png');
else
src = src.replace('minus.png','plus.png');
//if the detail DIV is empty Initiate AJAX Call, if not that means DIV already populated with data
if($(detail).html() == "")
{
//Prepare Progress Image
var $offset = $(master).offset();
$('#progress').css('visibility','visible');
$('#progress').css('top',$offset.top);
$('#progress').css('left',$offset.left+$(master).width());
//Prepare Parameters
var params = '{customerId:"'+ customerId +'"}';
//Issue AJAX Call
$.ajax({
type: "POST", //POST
url: "GridViewDrillDownjQueryAjax.aspx/GetOrders", //Set call to Page Method
data: params, // Set Method Params
beforeSend: function(xhr) {
xhr.setRequestHeader("Content-type", "application/json; charset=utf-8");},
contentType: "application/json; charset=utf-8", //Set Content-Type
dataType: "json", // Set return Data Type
success: function(msg, status) {
$('#progress').css('visibility','hidden');
$(master).children()[0].src = src;
$(detail).html(msg);
$(detail).slideToggle("normal"); // Succes Callback
},
error: function(xhr,msg,e){
alert(msg);//Error Callback
}
});
}
else
{
//Toggle expand/collapse
$(detail).slideToggle("normal");
$(master).children()[0].src = src;
}
}

解释：

type: 请求方式使用“post”

url: 请求的URL

data: 要传的参数

beforeSend：请求发送之前所要做的操作

contentType： 设置contentType为application/json; charset=utf-8

datatype: 设置返回类型为 json

success：请求成功返回正确的结果后 所要操作的事情，比如向第二个div追加订单列表html代码，然后滑动展示。

Error： 请求失败，弹出失败信息

至此，使用Ajax和Jquery实现GridView的展开和合并完毕。

源代码下载：http://files.cnblogs.com/ywqu/GridViewDrillDownJQueryAjax.rar

英文地址：http://mosesofegypt.net/post/GridView-Grouping-Master-Detail-Drill-Down-Using-jQuery-AJAX.aspx