How to properly set the jsonReader of a jqGrid to handle string array of rows - jqgrid

Question

Here are my column and model items:
var col_names = ['Qty', 'SFC', 'Item Nbr', 'Brand', 'Product', 'Supplier', 'Price', 'UOM', 'Case', 'Remarks', 'Weight', 'Par', 'Sort', 'Purchased', 'ProductId'];
var col_model = [
{ name: 'Quantity', index: 'Quantity', width: 22, sorttype: "number", editable: true, edittype: 'text', editoptions: { size: 10, maxlength: 15} },
{ name: 'ProductAttributes', index: 'ProductAttributes', width: 50 },
{ name: 'ItemNum', index: 'ItemNum', width: 50, align: "right"},
{ name: 'BrandName', index: 'BrandName', width: 100 },
{ name: 'ProducName', index: 'ProducName', width: 150 },
{ name: 'SupplierName', index: 'SupplierName', width: 100 },
{ name: 'Price', index: 'Price', width: 40, sorttype: "number", align: "right" },
{ name: 'UOM', index: 'UOM', width: 30 },
{ name: 'CasePack', index: 'CasePack', width: 30 },
{ name: 'PackageRemarks', index: 'PackageRemarks', width: 80 },
{ name: 'AveWeight', index: 'AveWeight', width: 33, align: "right" },
{ name: 'Par', index: 'Par', width: 20, align: "right", editable: true, edittype: 'text', editoptions: { size: 10, maxlength: 15} },
{ name: 'SortPriority', index: 'SortPriority', hidden: true },
{ name: 'LastPurchaseDate', index: 'LastPurchaseDate', width: 50, align: "right" },
{ name: 'ProductId', index: 'ProductId', hidden: true, key: true },
];
here's the grid initialization
favoriteGrid = $('#favoriteGrid');
favoriteGrid.jqGrid({
url: '/xxx/yyy/zzz/',
datatype: 'json',
ajaxGridOptions: { contentType: "application/json" },
jsonReader: {
id: "ProductId",
cell: "",
root: function (obj) { return obj.rows; },
page: function () { return 1; },
total: function () { return 1; },
records: function (obj) { return obj.rows.length; },
repeatitems: false
},
colNames: col_names,
colModel: col_model,
pager: $('#favoritePager'),
pginput: false,
rowNum: 1000,
autowidth: true,
sortable: true, // enable column sorting
multiselect: true, // enable multiselct
gridview: true,
ignoreCase: true,
loadonce: true, // one ajax call per
loadui: 'block',
loadComplete: function () {
fixGridHeight(favoriteGrid);
},
ondblClickRow: function (rowid, ri, ci) {
},
onSelectRow: function (id) {
if (id && id !== lastSel) {
favoriteGrid.restoreRow(lastSel);
lastSel = id;
}
favoriteGrid.editRow(id, true);
},
gridComplete: function () {
}
}).jqGrid('navGrid', '#favoritePager',
{ add: false, edit: false, del: false, search: true, refresh: false },
{},
{},
{},
{ multipleSearch: true, showQuery: false },
{}).jqGrid('sortableRows').jqGrid('gridDnD');
and finally, the data:
{"rows":[["1",null,"342240"," ","15 AMP, 600V, TIME DELAY, CLASS G","Home Depot - Canada","3.83","EA","1","- 15A, 600V - Class G - Mfg #SC-15","0.02","","0",null,"2977175133"],["1",null,"3573375","NEWPRT","STEAK TOP SIRLOIN CH CC 8OZ","SYSCO","6.875","LB","24 PK","8 OZ","24 LB","","0",null,"1675949601"],["1",null,"201805"," ","GE-HOTPOINT DISHWASHER UPPER RACK","Home Depot - Canada","54.43","EA","1","Dishwasher Upper Rack - Fits Models #HDA2000, HDA2100 And GSD2100 - Mfg #WD28X10011","6.5","","0",null,"2977172115"],["1",null,"286044"," ","GE DISHWASHER SILVERWARE BASKET","Home Depot - Canada","19.19","EA","1","Silverware Basket - Mfg #WD28X265","0.06","","0",null,"2977172688"]]}
I get the right number of rows and the columns but no data is displayed in the grid, if that makes sense.
Just for completeness:
[HandleJsonException]
public JsonResult ProductGroupService(Int64 id = 0)
{
var q = Repository.GetFavoriteProducts(SimpleSessionPersister.User.Id, id).ToArray();
var result = (from fp in q
select new string[]
{
Convert.ToString(fp.Quantity),
fp.ProductAttributes,
fp.ItemNum,
fp.BrandName,
fp.ProducName,
fp.SupplierName,
Convert.ToString(fp.Price),
fp.UOM,
fp.CasePack,
fp.PackageRemarks,
fp.AveWeight,
Convert.ToString(fp.Par),
Convert.ToString(fp.SortPriority),
fp.LastPurchaseDate,
Convert.ToString(fp.ProductId)
}).ToArray();
var jsonData = new
{
rows = result
};
return Json(jsonData, JsonRequestBehavior.AllowGet);
}
Thank you,
Stephen

Answer 1

You main problem is that you used repeatitems: false property of the jsonReader which is wrong for your input.
Moreover you should remove trailing comma at the end of definition of col_model. The error will be ignored by many modern browsers, but not for the old one.
After the changed the grid will be successfully loaded: see the demo.