获取列表项数

Question

我有一个 SharePoint 日历，其中包含事件类别（"Visit"，"Meeting"...）我想检索当天事件的计数，类别是 "Visit"。这是我的脚本：

var clientContext = SP.ClientContext.get_current();
    var list = clientContext.get_web().get_lists().getByTitle("Artdesk-calendrier");
    var caml = new SP.CamlQuery();
caml.set_viewXml("<View><Query>"+
    "<Where>"+
        "<And>"+
            "<Eq><FieldRef Name=\"Category\" /><Value Type=\"Choice\">Visite</Value></Eq>" +
            "<And>"+
                "<Leq><FieldRef Name=\"EventDate\"/><Value Type=\"DateTime\" IncludeTimeValue=\"False\"><Today Offset=\"1\"/></Value></Leq>"+
                "<Geq><FieldRef Name=\"EndDate\"/><Value Type=\"DateTime\" IncludeTimeValue=\"False\"><Today /></Value></Geq>"+
            "</And>"+
        "</And>"+
    "</Where>"+
"</View></Query>"); // empty query also works

var listItemCollection = list.getItems(caml);

clientContext.load(listItemCollection);
clientContext.executeQueryAsync(function() {
    var listItemEnumerator = listItemCollection.getEnumerator();
    var count = 0;
var eventsToday = [];
var eventsTomorrow = [];
var today = new Date();
today.setHours(0); today.setMinutes(0); today.setSeconds(0); today.setMilliseconds(0);
var tomorrow = new Date(today);
tomorrow.setDate(tomorrow.getDate()+1);
while (listItemEnumerator.moveNext()) {
    count++;
    var item = listItemEnumerator.get_current();
    var startDate = item.get_item("EventDate");
    var endDate = item.get_item("EndDate");
    var title = item.get_item("Title");
    if(endDate < tomorrow || eventDate < tomorrow){
        eventsToday.push(title);
    }else{
        eventsTomorrow.push(title);
    }
}
document.getElementById("TodaysEvents").innerHTML = eventsToday.join("\n");
document.getElementById("TomorrowsEvents").innerHTML = eventsTomorrow.join("\n");
document.getElementById("alerte1").innerHTML = count;
}, function(sender, args) {
  window.console && console.log(args.get_message());
});

它工作得很好，但它只检索了类别 "Visit" 的最后一个事件的标题。我想要的是：检索类别为 "Visit".

的当天的事件计数

欢迎任何帮助。

Answer 1

当您在当前日期获得带有过滤器的正确 CAML 查询时，您可以在使用查询加载列表项目集合后使用 get_itemCount() 方法获取项目编号。试试下面的代码

clientContext.executeQueryAsync(function() {
  window.console && console.log('Total Visits: ' + list.get_itemCount());
}, function(sender, args) {
  window.console && console.log(args.get_message());
});

Answer 2

获取列表项目集合中的项目计数

您可以按照 Nizzik 的建议（使用 listItemCollection.get_count()）直接访问列表项集合的计数属性，或者自己做一些简单的数学运算，如下所示。

var count = 0;
while (listItemEnumerator.moveNext()) {
    count++;
}
document.getElementById("alerte1").innerHTML = count;

将结果限制在今天和明天的事件中

如果您不需要担心任何重复发生的事件，您可以更新 CAML 查询以过滤结果，限制为明天或更早开始以及今天或更晚结束的事件。使用 EventDate 字段过滤 "Start Date"，使用 EndDate 字段过滤 "End Date"（这些是这些字段的内部名称）。

您生成的 CAML 查询最终可能如下所示：

"<View><Query>"+
    "<Where>"+
        "<And>"+
            "<Leq><FieldRef Name=\"EventDate\"/><Value Type=\"DateTime\" IncludeTimeValue=\"False\"><Today Offset=\"2\"/></Value></Leq>"+
            "<Geq><FieldRef Name=\"EndDate\"/><Value Type=\"DateTime\" IncludeTimeValue=\"False\"><Today /></Value></Geq>"+
        "</And>"+
    "</Where>"+
"</View></Query>"

如在您提供的示例代码中一样，要将其限制为类别等于 "Visite" 的事件，您可以使用以下 CAML：

"<View><Query>"+
    "<Where>"+
        "<And>"+
            "<Eq><FieldRef Name=\"Category\" /><Value Type=\"Choice\">Visite</Value></Eq>" +
            "<And>"+
                "<Leq><FieldRef Name=\"EventDate\"/><Value Type=\"DateTime\" IncludeTimeValue=\"False\"><Today Offset=\"1\"/></Value></Leq>"+
                "<Geq><FieldRef Name=\"EndDate\"/><Value Type=\"DateTime\" IncludeTimeValue=\"False\"><Today /></Value></Geq>"+
            "</And>"+
        "</And>"+
    "</Where>"+
"</View></Query>"

为了区分今天和明天的事件，您可以在枚举结果时从 while 循环中检查它们的 EventDate 和 EndDate 值。

var count = 0;
var eventsToday = [];
var eventsTomorrow = [];
var today = new Date();
today.setHours(0); today.setMinutes(0); today.setSeconds(0); today.setMilliseconds(0);
var tomorrow = new Date(today);
tomorrow.setDate(tomorrow.getDate()+2);
while (listItemEnumerator.moveNext()) {
    count++;
    var item = listItemEnumerator.get_current();
    var startDate = item.get_item("EventDate");
    var endDate = item.get_item("EndDate");
    var title = item.get_item("Title");
    if(endDate < tomorrow || startDate < tomorrow){
        eventsToday.push(title);
    }else{
        eventsTomorrow.push(title);
    }
}
document.getElementById("TodaysEvents").innerHTML = eventsToday.join("<br/>");
document.getElementById("TomorrowsEvents").innerHTML = eventsTomorrow.join("<br/>");
document.getElementById("alerte1").innerHTML = count;

您可能需要自定义逻辑，具体取决于您希望如何在 "today's" 事件和 "tomorrow's events," 之间划清界限，尤其是在奇怪的情况下，例如某个事件在某天开始并在某天结束另一个。

Answer 3

您好，我找到了获得 day+1 计数的解决方案：我已经更改并且它工作得很好，这是整个脚本：

function getevents()
{ 
var clientContext = SP.ClientContext.get_current();
    var list = clientContext.get_web().get_lists().getByTitle("Artdesk-calendrier");
    var caml = new SP.CamlQuery();
caml.set_viewXml("<View><Query>"+
    "<Where>"+
        "<And>"+
            "<Eq><FieldRef Name=\"Category\" /><Value Type=\"Choice\">Visite</Value></Eq>" +
            "<And>"+
                "<Leq><FieldRef Name=\"EventDate\"/><Value Type=\"DateTime\" IncludeTimeValue=\"False\"><Today OffsetDays='1'/></Value></Leq>"+
                "<Geq><FieldRef Name=\"EndDate\"/><Value Type=\"DateTime\" IncludeTimeValue=\"False\"><Today /></Value></Geq>"+
            "</And>"+
        "</And>"+
    "</Where>"+
"</View></Query>"); // empty query also works

var listItemCollection = list.getItems(caml);

clientContext.load(listItemCollection);
clientContext.executeQueryAsync(function() {
  var listItemEnumerator = listItemCollection.getEnumerator();
  var count_ajrd = 0;
  var count_demain = 0;
var eventsToday = [];
var eventsTomorrow = [];
var today = new Date();
today.setHours(0); today.setMinutes(0); today.setSeconds(0); today.setMilliseconds(0);
var tomorrow = new Date(today);
tomorrow.setDate(tomorrow.getDate()+1);
while (listItemEnumerator.moveNext()) {

    var item = listItemEnumerator.get_current();
    var startDate = item.get_item('EventDate');
    var endDate = item.get_item('EndDate');
    var title = item.get_item('Title');
    if(endDate < tomorrow || startDate < tomorrow){
        eventsToday.push(title);
        count_ajrd++;
    }else{
        eventsTomorrow.push(title);
        count_demain++;
    }
}
document.getElementById("alerte2").innerHTML = eventsToday.join("\n");
document.getElementById("alerte1").innerHTML = eventsTomorrow.join("\n");
document.getElementById("todaynum").innerHTML = count_ajrd;
document.getElementById("tomorrownum").innerHTML = count_demain;
}, function(sender, args) {
  window.console && console.log(args.get_message());
});
}

感谢@Thriggle 的帮助

获取列表项数

Get list item count

javascript

sharepoint

office365

caml

csom