联动无刷(大数据，图片加载）
大神，高手在哪里？//--------------------------------------------------------------------------------------//
//选项
<select name="ddlColor" id="ddlColor" class="shoeDetailTxt" runat="server" onchange="javascript:colorChange();" onclick="return ddlColor_onclick()">
</select>
//---------------------------------------------------------------------------------------//
//js代码
<script>
function colorChange() {
document.getElementById("txtQty").value = "";
var sizeCombo = document.getElementById("ddlSize");
var code = document.getElementById("hddCode").value;
var colorId = document.proDetail.ddlColor.value;
var sizeId = sizeCombo.options[sizeCombo.selectedIndex].value;
product_detail.selectSizeChange(code, colorId, sizeId, selectSizeChange_callback);
}
function selectColorChange_callback(prdDetail) {
var product = prdDetail.value;
var sizeCombo = document.getElementById("ddlSize");
if (product != null) {
var barcode = product.barCode;
window.location = "product_detail.aspx?barcode=" + barcode + "&code=" + product.Code;
return; //hacked to have unique URL
//display
document.getElementById("pShoeTitle").innerHTML = product.Title;
document.getElementById("pShoeDesc").innerHTML = product.Description + staticDes;
//document.getElementById("pshoeType").innerHTML = product.Type;
document.getElementById("divImg").innerHTML = "<img src='" + product.imageURL + "' width='440' height='480' border='0' />";
document.getElementById("divPrice").innerHTML = "SGD$" + product.Price + "<br>";
document.getElementById("ddlColor").value = product.colorID;
//hidden values
document.getElementById("hddBarcode").value = product.barCode;
document.getElementById("hddCode").value = product.Code;
document.getElementById("hddName").value = product.Name;
document.getElementById("hddImg").value = product.Image;
document.getElementById("hddPrice").value = product.Price;
document.getElementById("hddColor").value = product.colorID;
document.getElementById("hddSize").value = sizeCombo.options[sizeCombo.selectedIndex].value;
document.getElementById("Label_Avaiable_Qty").value = product.Stock;
if (product.Stock <= 0) {
document.getElementById("divAddToBag").innerHTML = "<span class='soldOutTxt'>Sold Out</span>";
}
else {
document.getElementById("divAddToBag").innerHTML = "<a href='#' onclick='javascripts:addToBag();'><img src='images/AddToBag.jpg' border='0' /></a>";
}
var barCode = "";
var itemcode = "";
var twitterStr = "";
var facebookStr = "";
//twitter facebook
twitterStr = "<script src='http://platform.twitter.com/widgets.js' type='text/javascript' />";
twitterStr += "<div>";
twitterStr += "<a href='http://twitter.com/share' class='twitter-share-button' ";
twitterStr += " data-url='http://www.heatwaveshoes.com/product_detail.aspx?barcode=" + barCode + "&code=" + itemcode + "'";
twitterStr += " data-via='Heatwave' ";
twitterStr += " data-text='Checking out this gorgeous shoe on Heatwave' ";
twitterStr += " data-count='horizontal'>Tweet</a> ";
twitterStr += " </div>";
document.getElementById("twitter").InnerHtml = twitterStr;
facebookStr = " <iframe src='http://www.facebook.com/plugins/like.php?app_id=258268004201018&href=http%3A%2F%2Fwww.heatwaveshoes.com%2Fproduct_detail.aspx%3Fbarcode%3D" + barCode + "%26code%3D" + itemcode + "&send=false&layout=standard&width=150&show_faces=true&action=like&colorscheme=light&font&height=80'";
facebookStr += " scrolling='no' frameborder='0' style='border:none; overflow:hidden; width:150px; height:30px;'";
facebookStr += " allowTransparency='true'></iframe>";
document.getElementById("facebook").InnerHtml = facebookStr;
//call to load related Product
loadRelatedProduct(product.Type, product.Height, product.Feature, product.Code);
}
</scritp>
//-------------------------------------------------------------------------------//
//后台c#
[AjaxPro.AjaxMethod]
public ProductDetail selectColorChange(String code, int colorId){
//从数据库取数据
(实体)ProductDetail prd = new ProductDetail();
prd.Name = name;
prd.Title = shoetitle;
prd.barCode = barCode;
prd.Code = itemcode;
prd.Price = price.ToString("F");
prd.Type = type;
prd.Height = height;
prd.Feature = feature;
//prd.Description = description + staticDesc;
prd.Description = description;
prd.Image = prodimgname;
prd.imageURL = imgurl;
prd.Stock = stock;
prd.colorID = Convert.ToInt32(colorID);
prd.Color = color;
prd.Size = size;
return prd;
} --------------------编程问答-------------------- 用AJAX挺好的，要不就用updatepanel。可以实现在后台直接调用方法，实现局部刷新，可一直刷新一个控件。用updatepanel之前还需要一个scriptmanager。上网搜一搜 --------------------编程问答--------------------
<asp:ScriptManager runat="server" id="spm" />--------------------编程问答-------------------- 放一堆代码，不描述下问题？
<asp:Updatepanel runat="server" />
补充：.NET技术 , ASP.NET
