Delete, No url is set in jqgrid - asp.net-mvc

Question

I'm using jqgrid and when deleting a row in the grid i get the alert "Delete selected record?" and when i click ok i have written a code in onClickSubmit to make a ajax call to the controller which takes some parameters and delete the record. The functionality works fine.
But when i click "Delete" button in the alert i get an error "No url is set". Now, i have a url inside my ajax call which does the function. Why is the error thrown?
jqGrid:
var selectedRowId = "125";
$("#AttachmentsGrid").jqGrid({
url: '#Url.Action("LoadTransactionAttachments", "Home")',
postData: { 'transactionId': selectedRowId },
mtype: 'GET',
datatype: 'json',
jsonReader: {
id: 'AttachmentId',
repeatitems: false
},
height: 'auto',
hidegrid: false,
rownumbers: true,
autowidth: true,
shrinkToFit: false,
rowNum: 10,
pager: '#AttachmentsPager',
caption: "Attachments",
colNames: ['AttachmentName'],
colModel: [{ name: 'AttachmentName', index: 'AttachmentName', formatter: imageFormatter, unformat: imageUnFormatter }],
beforeRequest: function () {
responsive_jqgrid($(".jqGrid"));
},
onSelectRow: function (id) {
var statusId;
attachmentId = id;
var selectValues = jQuery('#AttachmentsGrid').jqGrid('getRowData', id);
attachmentName = selectValues.AttachmentName;
if (accessLevel.HasDeleteAttachmentAccess == true)
$("#del_AttachmentsGrid").show();
else
$("#del_AttachmentsGrid").hide();
},
loadComplete: function () {
UnBlockUI();
}
});
jQuery("#AttachmentsGrid").jqGrid('navGrid', '#AttachmentsPager', {
edit: false, add: false, del: true, search: false, refresh: true, refreshtext: ""
}, {}, {}, {
// url: '#Url.Action("UpdateDummyData", "Home")',
// Delete attachment event.
onclickSubmit: function (response, postData) {
$.ajax({
url: '#Url.Action("DeleteSelectedTransactionAttachment", "Home")',
datatype: 'json',
data: { 'attachmentId': JSON.stringify(postData), 'attachmentName': attachmentName, 'transactionId': selectedRowId },
type: 'POST',
success: OnCompleteDeleteAttachments,
error: function (xhr, status, error) {
if (xhr.statusText == "Session TimeOut/UnAuthorized") {
alert(xhr.statusText);
window.location.href = '#Url.Action("LogOut", "Account")';
}
else
alert(xhr.responseText);
}
});
It works when i give some Dummy url in delete method which i dont need. I need another way to solve this.?
FYI, This happens for me also during the edit of a row using form editing.

Answer 1

It seems to me that you try to use Delete in a wrong way. What you do is making Ajax request to '#Url.Action("DeleteSelectedTransactionAttachment", "Home")' with some additional data, do some unknown additional action inside of OnCompleteDeleteAttachments in case of successful deleting and do additional error handling in case of "Session TimeOut/UnAuthorized" error in statusText.
I think that correct implementation should looks more as the following
jQuery("#AttachmentsGrid").jqGrid('navGrid', '#AttachmentsPager', {
edit: false, add: false, search: false, refreshtext: ""
}, {}, {}, {
url: '#Url.Action("DeleteSelectedTransactionAttachment", "Home")',
serializeDelData: function (postData) {
return {
attachmentId: JSON.stringify(postData),
attachmentName: attachmentName,
transactionId: selectedRowId
}
},
errorTextFormat: function (xhr) {
if (xhr.statusText == "Session TimeOut/UnAuthorized") {
window.location.href = '#Url.Action("LogOut", "Account")';
} else {
return xhr.responseText;
}
},
afterSubmit: OnCompleteDeleteAttachments
});