Sharepoint 2013. 使用 JavaScript 的多值查找字段
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Sharepoint 2013. Multivalue lookup field with JavaScript
提问by Marco
Is there a way to edit a multivalue lookup field using the JavaScript Client Object Model? I need to remove one or more lookup values and, eventually, add one or more values.
有没有办法使用 JavaScript 客户端对象模型编辑多值查找字段？我需要删除一个或多个查找值，并最终添加一个或多个值。
I search everywhere, I read MSDN documentation, ..., I also take a look under my desk!
我到处搜索，我阅读MSDN文档，...，我也在我的桌子底下看看！
Thanks.
谢谢。
回答by Vadim Gremyachev
Multiple-Column Lookupvalue is represented as an array of SP.FieldLookupValueobjects.
Multiple-Column Lookupvalue 表示为SP.FieldLookupValue对象的数组。
How to read multiple Lookupfield value
如何读取多个Lookup字段值
var context = new SP.ClientContext.get_current();
var web = context.get_web();
var list = web.get_lists().getByTitle(listTitle);
var listItem = list.getItemById(1);
context.load(listItem);
context.executeQueryAsync(
function() {
var lookupVals = listItem.get_item(fieldName); //get multi lookup value (SP.FieldLookupValue[])
for(var i = 0;i < lookupVals.length;i++) {
console.log(lookupVals[i].get_lookupId()); //print Id
console.log(lookupVals[i].get_lookupValue()); //print Value
}
},
function(sender,args){
console.log(args.get_message());
}
);
How to update multiple Lookupfield value
如何更新多个Lookup字段值
For updating multiple Lookup value you need to specify value of type SP.FieldLookupValue[]. Note, SP.FieldLookupValuecould be initialized by specifying LookupIdonly.
要更新多个 Lookup 值，您需要指定 type 的值SP.FieldLookupValue[]。注意，SP.FieldLookupValue只能通过指定来初始化LookupId。
var context = new SP.ClientContext.get_current();
var web = context.get_web();
var list = web.get_lists().getByTitle(listTitle);
var listItem = list.getItemById(1);
var lookupVals = [];
//set 1st Lookup value
var lookupVal1 = new SP.FieldLookupValue();
lookupVal1.set_lookupId(1);
lookupVals.push(lookupVal1);
//set 2nd Lookup value
var lookupVal2 = new SP.FieldLookupValue();
lookupVal2.set_lookupId(2);
lookupVals.push(lookupVal2);
listItem.set_item(fieldName,lookupVals);
listItem.update();
context.executeQueryAsync(
function() {
console.log('Multi lookup field has been updated');
},
function(sender,args){
console.log(args.get_message());
}
);
回答by suoko
You can get lookup values via js this way:
您可以通过这种方式通过 js 获取查找值：
clientContext.executeQueryAsync(function () {
clientContext.executeQueryAsync(function () {
var listItemEnumerator = collListItem.getEnumerator();
while (listItemEnumerator.moveNext()) {
var oListItem = listItemEnumerator.get_current();
chartX.push(oListItem.get_item(xAxisName));
}
lookupValue1= chartX["0"].g_1;
lookupValue2= chartX["1"].g_1;
