sharepoint REST Services Adding selections to a multivalue lookup field
Example
This example assumes that your lookup column is named MultiLookupColumnName and that you want to set your multi-lookup field to lookup to the items with IDs 1 and 2.
Using jQuery AJAX
2010
var listName = "YourListName";
var lookupList = "LookupListName";
var idOfItemToUpdate = 1;
var url = "/server/site/_vti_bin/ListData.svc/"+listName+"("+idOfItemToUpdate+")";
var data = JSON.stringify({
MultiLookupColumnName:[
{__metadata:{uri:"http://yoursiteurl/_vti_bin/ListData.svc/"+lookupList+"(1)"}},
{__metadata:{uri:"http://yoursiteurl/_vti_bin/ListData.svc/"+lookupList+"(2)"}}
]
});
$.ajax({
method: 'POST',
url: url,
contentType: 'application/json',
headers: {
"X-HTTP-Method" : "MERGE",
"If-Match" : "*"
},
data: data
});
2013
var listGuid = "id-of-list-to-update"; // use list GUID here
var lookupGuid = "id-of-lookup-list"; // use lookup list GUID here
var idOfItemToUpdate = 1;
var url = "/server/site/_api/lists('"+ listGuid + "')/items("+ idOfItemToUpdate + ")";
var data = JSON.stringify({
MultiLookupColumnName:[
{__metadata:{uri:"http://yoursiteurl/_api/lists('" + lookupGuid + "')/items(1)"}},
{__metadata:{uri:"http://yoursiteurl/_api/lists('" + lookupGuid + "')/items(2)"}}
]
});
$.ajax({
method: 'POST',
url: url,
contentType: 'application/json',
headers: {
"X-HTTP-Method" : "MERGE",
"If-Match" : "*"
},
data: data
});
Using XMLHttpRequest
2010
var listName = "YourListName";
var lookupList = "LookupListName";
var idOfItemToUpdate = 1;
var url = "/server/site/_vti_bin/ListData.svc/YourListName("+idOfItemToUpdate+")";
var data = JSON.stringify({
MultiLookupColumnName:[
{__metadata:{uri:"http://yoursiteurl/_vti_bin/ListData.svc/"+lookupList+"(1)"}},
{__metadata:{uri:"http://yoursiteurl/_vti_bin/ListData.svc/"+lookupList+"(2)"}}
]
});
var xhr = new XMLHttpRequest();
xhr.open("POST",url,true);
xhr.setRequestHeader("X-HTTP-Method", "MERGE");
xhr.setRequestHeader("If-Match", "*");
xhr.setRequestHeader("Content-Type","application/json");
xhr.send(data);
2013
var listGuid = "id-of-list-to-update";
var lookupGuid = "id-of-lookup-list";
var idOfItemToUpdate = 1;
var url = "/server/site/_api/lists('"+ listGuid + "')/items("+ idOfItemToUpdate + ")";
var data = JSON.stringify({
MultiLookupColumnName:[
{__metadata:{uri:"http://yoursiteurl/_api/lists('" + lookupGuid + "')/items(1)"}},
{__metadata:{uri:"http://yoursiteurl/_api/lists('" + lookupGuid + "')/items(2)"}}
]
});
var xhr = new XMLHttpRequest();
xhr.open("POST",url,true);
xhr.setRequestHeader("X-HTTP-Method", "MERGE");
xhr.setRequestHeader("If-Match", "*");
xhr.setRequestHeader("Content-Type","application/json");
xhr.send(data);
