I'm attempting to integrate jqGrid into an ASP.NET MVC 4 Razor view and have hit a snag that has me baffled. When I attempt to hit the view in debug-mode using IE9, I am getting this Javascript error:
Microsoft JScript runtime error: Unable to get value of the property 'id': object is null or undefined.
Razor:
<link href="/Content/themes/ui-lightness/jquery-ui-1.8.19.custom.css" rel="stylesheet" type="text/css" />
<link href="/Content/jquery.jqGrid/ui.jqgrid.css" rel="stylesheet" type="text/css" />
<script src="~/Scripts/jquery-1.7.2.min.js" type="text/javascript"></script>
<script src="~/Scripts/i18n/grid.locale-en.js" type="text/javascript"></script>
<script src="~/Scripts/jquery.jqGrid.min.js" type="text/javascript"></script>
@using(Html.BeginForm())
{
<fieldset>
<legend>@Model.FirstName @Model.LastName - Contacts/Providers</legend>
<table id="clientContacts" cellpadding="0" cellspacing="0"></table>
</fieldset>
}
<script type="text/javascript">
$(document).ready(function () {
$("#clientContacts").jqGrid({
url: '@Url.Action("GetClientContactsAndProviders")',
datatype: 'json',
mtype: 'POST',
colNames: ['clientContactId', 'Type', 'Who', 'Phone', 'button', 'Comments'],
colModel: [
{ name: 'clientContactId', index: 'clientContactId', hidden: true },
{ name: 'contactType', index: 'Type', width: 190, align: 'left' },
{ name: 'contactName', index: 'Who', width: 200, align: 'left' },
{ name: 'contactPhone', index: 'Phone', width: 100, align: 'left' },
{ name: 'newContactButton', index: 'button', width: 50, align: 'center' },
{ name: 'contactComments', index: 'Comments', width: 240, align: 'left'}
],
rowNum: 20,
width: 780,
height: '100%'
});
});
</script>
Action:
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult GetClientContactsAndProviders(string sidx, string sord, int page, int rows)
{
var clientId = CookieHelper.GetClientIdCookieValue();
var client = _clientRepo.GetClient(clientId);
var contacts = client.Contacts.ToList();
var model = new
{
total = 1,
page = 1,
records = contacts.Count,
rows = contacts.Select(c =>
new
{
clientContactId = c.ClientContactId.ToString(),
contactType = c.ContactType.Description,
contactName =
c.Contact.Person.FirstName + " " + c.Contact.Person.LastName,
contactPhone = c.Contact.Person.Phone1 ?? string.Empty,
newContactButton = string.Empty,
contactComments = c.Comments ?? string.Empty
}).ToArray()
};
return Json(model);
}
I do not get this error in Chrome, and I can't for the life of me figure out what this mythical "id" property is. Please help!
Edit (after @Justin Ethier answer):
Full disclosure, didn't think this mattered, but I'm attempting to pass in four "empty" rows in this situation. In these cases, clientContactId defaults to 0, and I think this may have been part of the problem. I changed my grid Javascript as follows:
$(document).ready(function () {
$("#clientContacts").jqGrid({
url: '@Url.Action("GetClientContactsAndProviders")',
datatype: 'json',
mtype: 'POST',
colNames: ['clientContactId', 'Type', 'Who', 'Phone', 'button', 'Comments'],
colModel: [
{ name: 'clientContactId', index: 'clientContactId', hidden: true },
{ name: 'contactType', index: 'Type', width: 190, align: 'left' },
{ name: 'contactName', index: 'Who', width: 200, align: 'left' },
{ name: 'contactPhone', index: 'Phone', width: 100, align: 'left' },
{ name: 'newContactButton', index: 'button', width: 50, align: 'center' },
{ name: 'contactComments', index: 'Comments', width: 240, align: 'left'}
],
rowNum: 20,
width: 780,
height: '100%',
jsonReader: {
root: 'rows',
page: 'page',
total: 'total',
records: 'records',
repeatitems: true,
cell: 'cell',
id: 'clientContactId',
userdata: 'userdata',
subgrid: { root: 'rows', repeatitems: true, cell: 'cell' }
}
});
});
Then, and most importantly, when the four rows are "empty" I added this code to build the rows object that jqGrid expects:
var rowBuilder = new List<object>();
for(var i = 0;i < contacts.Count; i++)
{
rowBuilder.Add(new
{
id = i + 1,
cell = new
{
clientContactId = contacts[i].ClientContactId.ToString(),
contactType = contacts[i].ContactType.Description,
contactName =
contacts[i].Contact.Person.FirstName + " " + contacts[i].Contact.Person.LastName,
contactPhone = contacts[i].Contact.Person.Phone1 ?? string.Empty,
button = string.Empty,
contactComments = contacts[i].Comments ?? string.Empty
}
});
}
var model = new
{
total = 1,
page = 1,
records = contacts.Count,
rows = rowBuilder.ToArray()
};
return Json(model);
And now it works!