javascript - jQuery DataTables Scroller Ajax not being called the second time -

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i using datatables jquery plugin. having problem using scroller plugin. doesn't load more data when scrolling reaches end of container.

init in jquery:

 $("#data-table").datatable({     "blengthchange": false,     "paging": false,     "scrollcollapse": true,     "searching": false,     "serverside": true,     "ordering": false,     "ajax": {         "url": const_web_service_url + "getdata",         "type": "post"      },     "scroller": {         "loadingindicator": true,         "trace": true     },      "deferrender": true,     "dom": "lfrtips",     "scrolly": "400px"    });

my .net webservice returns json data when datatables first read it:

{ "draw": 1, "data": [{     "id": 1.0,     "name": "88354b7e-c150-4985-b596-113fb3f9f591",     "rating": 40.0,     "votes": 1 }, {     "id": 2.0,     "name": "82f5243d-b68c-4306-a83b-7c5178661bab",     "rating": 40.0,     "votes": 2 }, {     "id": 3.0,     "name": "591c23cb-2ad6-472f-b347-96411bd7ca13",     "rating": 40.0,     "votes": 3 }, {     "id": 4.0,     "name": "cd7eed2e-f175-40c6-86ef-1ef26fdffe62",     "rating": 40.0,     "votes": 4 }, {     "id": 5.0,     "name": "46717542-a68a-48f9-92c7-21fbe94bbee6",     "rating": 40.0,     "votes": 5 }, {     "id": 6.0,     "name": "d73561ac-5885-4fc3-b9ed-2c672298c5e6",     "rating": 40.0,     "votes": 6 }, {     "id": 7.0,     "name": "6c18c250-c8e2-4e66-bb63-d13112cbbb4d",     "rating": 40.0,     "votes": 7 }, {     "id": 8.0,     "name": "3fefb6f7-a35b-44fe-b1be-7dc6cfe59f69",     "rating": 40.0,     "votes": 8 }, {     "id": 9.0,     "name": "7ba7d370-1250-4349-8228-4997b1c9d309",     "rating": 40.0,     "votes": 9 }, {     "id": 10.0,     "name": "56c15c4b-7617-4519-bfbe-aa82d78fd352",     "rating": 40.0,     "votes": 10 }, {     "id": 11.0,     "name": "7c2f49dc-9dad-4521-8a08-707ec60da31f",     "rating": 40.0,     "votes": 11 }, {     "id": 12.0,     "name": "2ca7d4dd-d1df-47dd-8001-e32e0fad0105",     "rating": 40.0,     "votes": 12 }, {     "id": 13.0,     "name": "7ccd94f1-63d7-4d39-8c75-940a3c687b52",     "rating": 40.0,     "votes": 13 }, {     "id": 14.0,     "name": "b3c24654-d27b-497d-bd75-fb3b1f675262",     "rating": 40.0,     "votes": 14 }, {     "id": 15.0,     "name": "68d28801-87c1-4f19-a96e-55b6a33fe609",     "rating": 40.0,     "votes": 15 }, {     "id": 16.0,     "name": "51c880c5-eb5d-41c2-8c07-960097d0f687",     "rating": 40.0,     "votes": 16 }, {     "id": 17.0,     "name": "518fd582-131e-47a2-ae8d-418650433c24",     "rating": 40.0,     "votes": 17 }, {     "id": 18.0,     "name": "6f9f132c-c70b-4a79-8316-c833003ff615",     "rating": 40.0,     "votes": 18 }, {     "id": 19.0,     "name": "bf189639-2e7a-49b3-86c7-5b6a2210635d",     "rating": 40.0,     "votes": 19 }, {     "id": 20.0,     "name": "035940bc-ab81-488d-9853-cab963841508",     "rating": 40.0,     "votes": 20 }, {     "id": 21.0,     "name": "1cb3b0a2-d03b-4792-b5a7-00cc1aeca33a",     "rating": 40.0,     "votes": 21 }, {     "id": 22.0,     "name": "7934e41d-759f-4903-97df-5f0c15547c43",     "rating": 40.0,     "votes": 22 }, {     "id": 23.0,     "name": "e2fe8827-0c02-49ee-9069-65f3349a2086",     "rating": 40.0,     "votes": 23 }, {     "id": 24.0,     "name": "0822288b-5df3-4aba-82fa-0a302eff5411",     "rating": 40.0,     "votes": 24 }, {     "id": 25.0,     "name": "e2b0f808-d0f7-4a80-bd06-4f34c63dcce6",     "rating": 40.0,     "votes": 25 }, {     "id": 26.0,     "name": "7fe22ed9-7629-4f23-8901-f5d328800c21",     "rating": 40.0,     "votes": 26 }, {     "id": 27.0,     "name": "18364942-bbbb-4c86-a310-5e256337c40d",     "rating": 40.0,     "votes": 27 }, {     "id": 28.0,     "name": "433e904f-bf1c-4375-bbf3-b8f78c337efa",     "rating": 40.0,     "votes": 28 }, {     "id": 29.0,     "name": "e55fe861-87d8-4377-91c7-914da0419fee",     "rating": 40.0,     "votes": 29 }, {     "id": 30.0,     "name": "30be927f-8584-47a5-be66-b4df8b4075e8",     "rating": 40.0,     "votes": 30 }, {     "id": 31.0,     "name": "8baaad43-7d1b-4abb-97c9-a81ba5e37dee",     "rating": 40.0,     "votes": 31 }, {     "id": 32.0,     "name": "00f4014f-cc81-47d4-bd12-af9b8c565b50",     "rating": 40.0,     "votes": 32 }, {     "id": 33.0,     "name": "225b4461-8740-45be-a094-9e747f9a7b07",     "rating": 40.0,     "votes": 33 }, {     "id": 34.0,     "name": "0e178b0f-35ec-40dc-850e-5cf84ff0bfbd",     "rating": 40.0,     "votes": 34 }, {     "id": 35.0,     "name": "e95c0aee-e525-4de0-addc-7b77a73df158",     "rating": 40.0,     "votes": 35 }, {     "id": 36.0,     "name": "0c3a2eab-307b-44fe-bcba-ce299cf734cf",     "rating": 40.0,     "votes": 36 }, {     "id": 37.0,     "name": "b0b0f894-c953-4560-8d6e-d13ce88541fb",     "rating": 40.0,     "votes": 37 }, {     "id": 38.0,     "name": "ebfb8188-fa1c-44e8-af98-ea254de85ab9",     "rating": 40.0,     "votes": 38 }, {     "id": 39.0,     "name": "1e726187-8214-4b44-926b-611e9fcb7f93",     "rating": 40.0,     "votes": 39 }, {     "id": 40.0,     "name": "cf298d6c-3858-4645-9ea5-a628d8335ce9",     "rating": 40.0,     "votes": 40 }, {     "id": 41.0,     "name": "3ce51eda-eff3-490a-94a5-09ae0ef4f6e0",     "rating": 40.0,     "votes": 41 }, {     "id": 42.0,     "name": "c0d5b03a-aecb-4a00-b9c9-b1febd4e6262",     "rating": 40.0,     "votes": 42 }, {     "id": 43.0,     "name": "6434056c-f682-40b3-a5c7-4a1bbfc45a6c",     "rating": 40.0,     "votes": 43 }, {     "id": 44.0,     "name": "b8e3adec-f9c4-424c-a09d-aee6563c251e",     "rating": 40.0,     "votes": 44 }, {     "id": 45.0,     "name": "666cea59-850c-45df-949f-4285d0ee9aa7",     "rating": 40.0,     "votes": 45 }, {     "id": 46.0,     "name": "d570807f-1aa8-44b8-8221-188cb550a743",     "rating": 40.0,     "votes": 46 }, {     "id": 47.0,     "name": "64b2353d-bea4-4fcc-b8cd-5dc5c897ac29",     "rating": 40.0,     "votes": 47 }, {     "id": 48.0,     "name": "c8082be2-92e0-4e26-9c66-0a487ed084a8",     "rating": 40.0,     "votes": 48 }, {     "id": 49.0,     "name": "4e4a1a01-aac0-41c0-934e-4fa1086cb82b",     "rating": 40.0,     "votes": 49 }, {     "id": 50.0,     "name": "b194d213-bdf9-4973-8264-f3a156ab5910",     "rating": 40.0,     "votes": 50 }], "recordstotal": 5000000, "recordsfiltered": 5000000 }

i generated results code testing.

datatables reads recordstotal , should know there more data read. the data shown in table correctly in 200px container specified, when scroll end, doesn't initiate ajax call server retrieve more data.

what changes need make in order scroller plugin continuously read data server?

i tried paging: true without success. no errors in console.

when comment out blengthchange , paging, paging works, scrolling bottom doesn't initiate call server second page.

there potential problems initialization code , data:

  • no column data definitions (columns.data) available though use objects in json response.
  • pagination (p) , length changing controls (l) should not specified in dom parameter if you're not using them.
  • data format correct make sure you're returning same draw value given in request , number of records requested in length parameter (see full list of request parameters).

i believe correct code should like:

$("#data-table").datatable({     "scrollcollapse": true,     "serverside": true,     "ordering": false,     "searching": false,     "ajax": {         "url": const_web_service_url + "getdata",         "type": "post"     },     "scroller": {         "loadingindicator": true     },     "deferrender": true,     "dom": "rtis",     "scrolly": "400px",     "columns": [         {"data": "id"},          {"data": "name"},          {"data": 'rating'},          {"data": 'votes'}     ]  });

see this jsfiddle example. used different ajax function simulate server-side processing.


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