日期:2014-05-16 浏览次数:20476 次
本文介绍SharePoint 2013(其实也适用于2010,支持JavaScript OM) 中使用嵌入JavaScript方式实现一个垂直滚动列表:

当鼠标进入Item时停止滚动,当鼠标点击对应的Item时,显示对应的Item内容:

实现的大概思路是使用一段较短的JavaScript代码嵌入SharePoint页面,这个JavaScrip片段(可设置相关参数,如列表名,过滤条件等)调用另一个较大的JavaScript文件VerticalScrollingWebPart.js(存储到SharePoint 的SiteAssets/JavaScript中), VerticalScrollingWebPart.js 文件负责使用JavaScript OM 查询后台列表,并根据参数画出一个滚动列表:

嵌入的JavaScript 代码:
<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.9.0.min.js"></script>
<script type="text/javascript" src="/SiteAssets/Javascript/VerticalScrollingWebPart.js"></script>
<script type="text/javascript">
init_fillScrollableDiv({'web':'',
'listBaseUrl': 'http://MossHost/Lists/ReadMarkList/DispForm.aspx',
'listName': 'ReadMarkList',
'viewFields':['Title','Body'],
'Filter':'<Where> <Or> <IsNull> <FieldRef Name=\"Expires\" /> </IsNull> <Geq> <FieldRef Name=\"Expires\"></FieldRef> <Value Type=\"DateTime\"> <Today></Today> </Value> </Geq> </Or> </Where>',
'viewFieldsStyle':['font-weight:bold','padding:0 0 0 5'],
'divID':'myScrollableDiv',
'divHeight':'250px',
'divWidth':'500px',
'speed':4,
'linkBack':true});
</script>
主要参数说明:
1. web,如果取子站点的列表需要填
2. listBaseUrl, 显示list item的地址
3. listName,要读取的list 名称
4.viewFields, 要显示的字段
5.Filter 过滤条件(CAML结构的 Where 子句)
VerticalScrollingWebPart.js 代码:
/*
A vertical scrolling web part for SharePoint 2013
*/
function init_fillScrollableDiv(obj) {
// Build the div
var myDivBuffer = [];
myDivBuffer.push("<div style='vertical-align:top;position:relative;overflow:hidden;cursor:default;height:" + obj.divHeight + ";width:" + obj.divWidth + "'>");
myDivBuffer.push("<div id='" + obj.divID + "' style='position:relative'></div>");
myDivBuffer.push("</div>");
myDivContainer = myDivBuffer.join('');
document.write(myDivContainer);
$(document).ready(function () {
// fillScrollableDiv(obj)
ExecuteOrDelayUntilScriptLoaded(function () { queryItemsByViewName(obj); }, "sp.js");
//queryItemsByViewName(obj);
});
}
function fillScrollableDiv(info, items) {
info.animBegin = 0;
info.animPart = 0;
if (items.length == -1) alert("An error occured - check the parameters \"listBaseUrl\", \"web\"......");
var finalBuffer = [];
var path = info.listBaseUrl;
var res = new Object();
res.items = items;
$.each(res.items, function (i, item) {
var partBuffer = [];
$.each(info.viewFields, function (idx, fin) {
var style = '';
var thisVal = (item[fin] == null) ? '' : item[fin];
if (thisVal.indexOf(';#') > -1) {
thisVal = thisVal.substring(thisVal.indexOf(';#') + 2);
}
if (info.viewFieldsStyle[idx] != undefined) {
style = " style='" + info.viewFieldsStyle[idx] + "'";
}
partBuffer.push("<tr><td" + style + ">" + thisVal + "</td></tr>");
});
finalBuffer.push("<hr style='height:1px;color:black' />");
if (info.linkBack) {
finalBuffer.push("<table title='Go to item' style='cursor:pointer' &quo