Kendo Grid doesn't show any data despite having data within DataSource - kendo-ui

Question

So, I'm trying to make a readyonly grid with kendo that shows data, but whatever I do, the data does not get shown.
The grid looks like this
And here's the code:
$("#Materials")
.kendoGrid({
dataSource: {
data: [],
schema: {
model: {
id: "ID",
fields: {
ID: { type: "number", editable: false },
Code: { type: "string", editable: false },
Name: { type: "string", editable: false },
ExtDeviceCode: { type: "string", editable: false , nullable: true },
BaseUomLOVString: { type: "string", editable: false }
}
}
},
pageSize: 20
},
filterable: {
extra: true
},
pageable: true,
columns: [
{ field: "Code", title:"Code"},
{ field: "Name", title: "Name"},
{ field: "ExtDeviceCode", title:"External device code"},
{ field: "BaseUomLOVString", title: "UnitsOfMeasure" }
],
editable: false
});
This makes an empty grid with no data, which I later on fill with an Ajax call. As you can see from above picture, the grid contains the data but does not display it. The data inside the dataSource looks like this. or as Json:
[{
"ID": 21150,
"Code": "3",
"ExtDeviceCode": null,
"Name": "Avio benzin",
"BaseUomLOVString": "Kilogram"
}, {
"ID": 21400,
"Code": "5003",
"ExtDeviceCode": null,
"Name": "Bencin 95",
"BaseUomLOVString": "Litre"
}]
EDIT 1: I'm filling the data with an Ajax call like this:
$.ajax({
url: '#SimpleUrlHelper.UrlObjectToRoot(Url)/FuelPointMaterialTankMask/LookupMaterials',
data: {
//Send list of IDs
'materialIDs': materialList
},
type: "POST",
success: function (response) {
var tmp = [];
if (typeof response !== "undefined" &&
response !== null) {
response.forEach(function(item) {
tmp.push(item);
});
}
grid = $("#Materials").data("kendoGrid");
originalMaterialDataSource = grid.dataSource;
originalMaterialDataSource.data(tmp);
originalMaterialDataSource._destroyed = [];
originalMaterialDataSource.pageSize(pageSize);
originalMaterialDataSource.page(1);
originalMaterialDataSource._total = tmp.length;
grid.pager.refresh();
}
});

Answer 1

You can set your data in your dataSource after your ajax call.
var dataArray = [{
"ID": 21150,
"Code": "3",
"ExtDeviceCode": null,
"Name": "Avio benzin",
"BaseUomLOVString": "Kilogram"
}, {
"ID": 21400,
"Code": "5003",
"ExtDeviceCode": null,
"Name": "Bencin 95",
"BaseUomLOVString": "Litre"
}];
Use .data() to set:
$("#Materials").data('kendoGrid').dataSource.data(dataArray );

Answer 2

Okay so after days of trying to figure out what was wrong I finally found the answer.
Somewhere along the lines I had:
var grids = $('.k-grid');
for (var i = 0; i < grids.length; i++) {
....
grid.dataSource.filter().filters[0] = {
logic: "or",
filters: filters
}
....
So basically I was putting filters on all grids without excluding this one, which was just a bug from my part.