Develop Reference

Using Modal JavaScript in the Partial View of .NET CORE will not work after Ajax Post

I use the Modal display field in the Partial View to input data for the User, and use data-url=#url.action("Create") in the main screen to call Modal.
And wrote Autocomplete JavaScript in Partial View.
It works perfectly before using Ajax Post.
But after going through Ajax, the JavaScript cannot be used when it returns because of an error.
How can I make corrections?
Main View
<div id="PlaceHolderHere" data-url="#Url.Action("Create")"></div>
Ajax Code
$(function () {
var PlaceHolderElement = $('#PlaceHolderHere');
$('button[data-toggle="ajax-modal"]').click(function (event) {
event.preventDefault();
var url = $(this).data('url');
$.get(url).done(function (data) {
PlaceHolderElement.html(data);
PlaceHolderElement.find('.modal').modal('show');
});
});
PlaceHolderElement.on('click', '[data-save="modal"]', function (event) {
event.preventDefault();
var form = $(this).parents('.modal').find('form');
var actionUrl = form.attr('action');
var sendData = new FormData(form.get(0));
console.log(sendData);
$.ajax({
url: actionUrl,
method: 'post',
data: sendData,
processData: false,
contentType: false,
cache: false,
success: function (redata) {
console.log(redata);
if (redata.status === "success") {
PlaceHolderElement.find('.modal').modal('hide');
}
else {
var newBody = $('.modal-body', redata);
var newFoot = $('.modal-footer', redata);
PlaceHolderElement.find('.modal-body').replaceWith(newBody);
PlaceHolderElement.find('.modal-footer').replaceWith(newFoot);
}
},
error: function (message) {
alert(message);
}
})
})
})
Partial View of JavaScript part
#{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
<script src="~/bootstrap-autocomplete/dist/latest/bootstrap-autocomplete.min.js"></script>
$('#BossName').autoComplete({
resolver: 'custom',
minLength: 2,
formatResult: function (item) {
return {
value: item.value,
text: "[" + item.value + "] " + item.text,
}
},
noResultsText:'There is no matching data, please confirm whether there is data in the company field',
events: {
search: function (qry, callback) {
// let's do a custom ajax call
$.ajax(
'#Url.Action("GetRolesByAutoComplete","Roles")',
{
data: {
'q': qry,
'key': document.getElementById('CompanyCode').value
}
}
).done(function (res) {
callback(res)
});
}
}
});
$('#BossName').on('autocomplete.select', function (evt, item) {
console.log(item);
$('#BossID').val(item.value);
$('#BossName').val(item.text);
});
Partial View of Modal
<div class="modal fade" id="AddEditRoles" tabindex="-1">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="AddEditRolesLabel">Add New Roles</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<form asp-action="Create" id="Edit">
<div class="input-group">
<span class="input-group-text">#Html.DisplayNameFor(m => m.RolesCode)</span>
#if (Model != null && Model.RolesCode != null)
{
<input asp-for="RolesCode" class="form-control" readonly />
}
else
{
<input asp-for="RolesCode" class="form-control" autocomplete="off" />
}
<span asp-validation-for="RolesCode" class="text-danger"></span>
</div>
<div class="input-group">
<span class="input-group-text">#Html.DisplayNameFor(m => m.Title)</span>
<input asp-for="Title" class="form-control" autocomplete="off" />
<span asp-validation-for="Title" class="text-danger"></span>
</div>
<div class="input-group">
<span class="input-group-text">#Html.DisplayNameFor(m => m.CompanyCode)</span>
<input type="text" asp-for="CompanyCode" class="form-control col-md-3" readonly />
<input type="text" id="CompanyName" class="form-control" autocomplete="off"
placeholder="Please type Key word" />
<span asp-validation-for="CompanyCode" class="text-danger"></span>
</div>
<div class="input-group">
<span class="input-group-text">#Html.DisplayNameFor(m => m.BossID)</span>
<input asp-for="BossID" type="text" class="form-control col-md-3" readonly />
<input id="BossName" type="text" class="form-control" autocomplete="off"
placeholder="Please type Key word" />
<span asp-validation-for="BossID" class="text-danger"></span>
</div>
</form>
</div>
<div class="modal-footer">
<div class="text-danger">#Html.ValidationMessage("error")</div>
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button id="Save" type="button" class="btn btn-primary" data-save="modal">Save changes</button>
</div>
</div>
</div>
</div>

You send data to the server, but when it fails you replace modal contents.
Replacing HTML destroys everything that was already there, so you wipe everything that was done by your autocomplete plugin.
All you need to do is to initialize autocomplete again:
success: function (redata) {
if (redata.status === "success") {
} else {
var newBody = $('.modal-body', redata);
var newFoot = $('.modal-footer', redata);
PlaceHolderElement.find('.modal-body').replaceWith(newBody);
PlaceHolderElement.find('.modal-footer').replaceWith(newFoot);
// INITIALIZE AUTOCOMPLETE HERE
}
},

AntiforgeryToken generation from using #Ajax.BeginForm()

I have an issue in generating anti-forgery token manually inside ajax methods. So my question If I used ajax.beginform(), does it generate a token like the #html.beginform? If so, how can I use it with my ajax methods?
Kindly ignore the long code in the view. My main concern is with the ajax methods. I posted it to show you the view in case of the suggestion of using the beginForm().
#*#Html.AntiForgeryToken()*#
<hr />
<div class="row">
<div class="col-lg-6">
<label><strong>Month:</strong></label>
</div>
<div class="col-lg-6">
<label>#manning_HQ.Issue_Date</label>
</div>
</div>
<div class="row">
<div class="col-lg-6">
<label><strong>Count:</strong></label>
</div>
<div class="col-lg-6">
<label>#manning_HQ.Count</label>
</div>
</div>
<div class="row">
<div class="col-lg-6">
<label><strong>Location:</strong></label>
</div>
<div class="col-lg-6">
<label>#manning_HQ.Location_Name</label>
</div>
</div>
<hr />
<div class="col-lg-4">
<label>Recruitment Status :</label>
</div>
<div class="col-lg-3">
<select id="recruitment_Status">
<option value="0">
Choose Status
</option>
#foreach (TBL_Recruitment_Status rec in recruitment_Status)
{
<option value="#rec.Rec_Status_ID">
#rec.Status_Name
</option>
}
</select>
</div>
<div class="row">
<div class="col-lg-12">
<label><strong>Issue staff requisition:</strong></label>
</div>
</div>
<div class="row">
<div class="col-lg-6">
<input type="radio" name="Decision" id="_123" value="Accepted" />
Accepted
</div>
<div class="col-lg-6">
<input type="radio" name="Decision" id="_456" value="Rejected" />
Rejected
</div>
</div>
<hr />
<div class="row" id="RejComment" hidden>
<div class="col-lg-6">
<label>Rejected Comment :</label>
</div>
<div class="col-lg-3">
<textarea id="RetainedComment"></textarea>
</div>
</div>
<br />
<div class="modal-footer" id="Save_Dicision" hidden>
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary" onclick="saveDecision(#manning_HQ.Issue_Staff_ID)">Save</button>
</div>
<script>
var DecesionCheck = false;
var rejected = false;
var reason = false;
$(document).ready(function () {
$('input[type=radio][name=Decision]').change(function () {
if ($("input[name='Decision']:checked").val() == 'Accepted') {
$('#RejComment').hide();
$('#Save_Dicision').show();
rejected = true;
}
if ($("input[name='Decision']:checked").val() == 'Rejected') {
$('#RejComment').show();
$('#Save_Dicision').show();
rejected = true;
}
});
});
function saveDecision(ID) {
var Decsion = $('input[name=Decision]:checked').val();
var Reason = $('#recruitment_Status').val();
//var token = $("[name='__RequestVerificationToken']").val();
if (Decsion == "#_123") {
if (DecesionCheck == true) {
var Decsion = $('input[name=Decision]:checked').val();
var optionalComment = $('#OptionalComment').val();
$.ajax({
type: 'POST',
url: '/Staff_Requisition_HQ/Recruitment_Actions',
data: {
// __RequestVerificationToken: token,
Issue_Staff_ID: ID,
Rec_Status_ID: Reason,
OpComment: RetainedComment,
RecDecison: Decsion,
},
success: function (result) {
$('#DescionDetailsPOPUP').modal('hide');
location.reload();
},
fail: function (xhr, textStatus, errorThrown) {
alert('request failed');
}
});
}
}
else {
var Decsion = $('input[name=Decision]:checked').val();
var RetainedComment = $('#RetainedComment').val();
$.ajax({
type: 'POST',
url: '/Staff_Requisition_HQ/Recruitment_Actions',
data: {
//__RequestVerificationToken: token,
Issue_Staff_ID: ID,
Rec_Status_ID: Reason,
Comment: RetainedComment,
RecDecison: Decsion,
},
success: function (result) {
$('#DescionDetailsPOPUP').modal('hide');
location.reload();
},
fail: function (xhr, textStatus, errorThrown) {
alert('request failed');
}
});
}
}
</script>

Here's an example of Ajax.BeginForm from one of my views:
<!-- FORM Atributo -->
#using (Ajax.BeginForm(accionFormulario, "Atributos", new AjaxOptions() { OnSuccess = "onSuccessCreate" }, new { #id = "frmCreate" }))
{
#Html.AntiForgeryToken()
#Html.HiddenFor(model => model.AtributoId)
#Html.HiddenFor(model => model.EmpresaId)
<div class="modal-body">
<div class="row">
// the form inputs ....
</div>
</div>
<div class="modal-footer">
<button class="btn btn-secondary mx-1" type="button" data-dismiss="modal" aria-label="Close">#Global.Cancelar</button>
<button class="btn btn-primary" type="submit"><strong>#Global.Guardar</strong></button>
</div>
}
This generates the AntiForgeryToken as expected:
You can capture it with javascript as you were doing in your view.

Load DataTable data to a Edit Modal

I am trying to create an edit function for my data table. The data table is created using Yajra Data tables. Everything working fine unless when I try to load existing data into the edit modal it fails. No error is showing but the modal does not launch. I have only included a little portion of my code here for easy reference.
Modal:
<!-- Update Status Model Box -->
<div id="updateStatusModal" class="modal fade" role="dialog">
<div class="modal-dialog modal-lg">
<div class="modal-content bg-default">
<div class="modal-body">
<form class="form-horizontal" id="updateStatus">
#csrf
#method('PUT')
<div class="row">
<div class="col">
<div class="form-group text-center">
<h6 class="font-weight-bold">Stage 1</h6>
<label for="stage_1" class="switch">
<input type="checkbox" class="form-control" id="stage_1">
<div class="slider round"></div>
</label>
</div>
</div>
</div>
<div class="row">
<div class="col">
<div class="form-group">
<div class="col-md">
<label for="firstname">Coding</label>
<input type="text" class="form-control" id="first_name" value="" placeholder="Enter Completed Page Count">
</div>
</div>
</div>
</div>
</form>
</div>
<div class="modal-footer justify-content-between">
<button type="button" name="update_btn" id="update_btn" class="btn btn-outline-warning">Update</button>
</div>
</div>
</div>
</div>
jquery funtion:
// Edit action
$(document).on('click', '.updateStatus', function(){
$tr = $(this).closest('tr');
var data = $tr.clidren("td").map(function(){
return $(this).text();
}).get();
console.log(data);
$('#id').val(data[0]);
$('#job_id').val(data[2]);
$('#stage_1').val(data[3]);
$('#conversion').val(data[4]);
$('#updateStatusModal').modal('show');
});
I tried this method I found but this is not working. Can anyone provide me any pointers here?

I've just didn't seen your front scripts (also back-end codes), but instead I can share my implementation for that you need. It works perfectly like showed in this (screenshot).
Here I'll put front and back codes. There is functionality for editing existsing Datatable record, also record deletion.
FRONT
<!--HERE ATTACH NECESSARY STYLES-->
<!--VIEW end-->
<link rel="stylesheet" type="text/css" href="{{ asset('css/admin/datatables.min.css') }}"/>
<table id="yajra_datatable" class="table table-bordered">
<thead>
<tr>
<th>Name</th>
<th>Options</th>
</tr>
</thead>
</table>
<div class="modal modal-danger fade" id="modal_delete">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span></button>
<h4 class="modal-title">Delete Language</h4>
</div>
<div class="modal-body">
<p>Are You sure You want to delete this Language?</p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-outline pull-left" data-dismiss="modal">Cancel</button>
<button id="delete_action" type="button" class="btn btn-outline">Submit</button>
</div>
</div>
</div>
</div>
<div class="modal modal-warning fade" id="modal_edit">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span></button>
<h4 class="modal-title">Edit Language</h4>
</div>
<div class="modal-body">
<div class="form-group">
<label for="language_name">Language Name</label>
<input name="language_name" id="language_name" type="text" value="" class="form-control" placeholder="Language Name">
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-outline pull-left" data-dismiss="modal">Cancel</button>
<button id="edit_action" type="button" class="btn btn-outline">Submit</button>
</div>
</div>
</div>
</div>
<input type="hidden" id="item_id" value="0" />
<!--VIEW end-->
<!--HERE ATTACH NECESSARY SCRIPTS-->
<!--SCRIPTS start-->
<script src="{{ asset('js/admin/jquery.dataTables.min.js') }}"></script>
<script type="text/javascript">
var YajraDataTable;
function delete_action(item_id){
$('#item_id').val(item_id);
}
function edit_action(this_el, item_id){
$('#item_id').val(item_id);
var tr_el = this_el.closest('tr');
var row = YajraDataTable.row(tr_el);
var row_data = row.data();
$('#language_name').val(row_data.name);
}
function initDataTable() {
YajraDataTable = $('#yajra_datatable').DataTable({
"processing": true,
"serverSide": true,
"ajax": "{{ route('admin.book_languages.ajax') }}",
"columns":[
{
"data": "name",
"name": "name",
},
{
"data": "",
"name": ""
},
],
"autoWidth": false,
'columnDefs': [
{
'targets': -1,
'defaultContent': '-',
'searchable': false,
'orderable': false,
'width': '10%',
'className': 'dt-body-center',
'render': function (data, type, full_row, meta){
return '<div style="display:block">' +
'<button onclick="delete_action(' + full_row.id + ')" type="button" class="delete_action btn btn-danger btn-xs" data-toggle="modal" data-target="#modal_delete" style="margin:3px"><i class="fa fa-remove"></i> Delete</button>' +
'<button onclick="edit_action(this, ' + full_row.id + ')" type="button" class="edit_action btn btn-warning btn-xs" data-toggle="modal" data-target="#modal_edit" style="margin:3px"><i class="fa fa-edit"></i> Edit</button>' +
'</div>';
}
}
],
});
return YajraDataTable;
}
$(document).ready(function() {
var YajraDataTable = initDataTable();
$('#delete_action').on('click', function (e) {
e.preventDefault();
$.ajax({
url: "{{ route('admin.book_languages.delete') }}",
data: {
'item_id': $('#item_id').val(),
'_token': "{{ csrf_token() }}"
},
type: "POST",
success: function (data) {
$('#modal_delete').modal('hide');
YajraDataTable.ajax.reload(null, false);
console.log(data.message);
}
})
});
$('#edit_action').on('click', function (e) {
e.preventDefault();
$.ajax({
url: "{{ route('admin.book_languages.edit') }}",
data: {
'item_id': $('#item_id').val(),
'language_name': $('#language_name').val(),
'_token': "{{ csrf_token() }}"
},
type: "POST",
success: function (response) {
$('#modal_edit').modal('hide');
YajraDataTable.ajax.reload(null, false);
console.log(data.message);
}
})
});
$('#modal_delete').on('hidden.bs.modal', function () {
$('#item_id').val(0);
});
$('#modal_edit').on('hidden.bs.modal', function () {
$('#item_id').val(0);
$('#language_name').val("");
});
});
</script>
<!--SCRIPTS end-->
BACK
public function index() {
return view('admin.book-languages.index');
}
public function ajax() {
$items = BookLanguage::latest('id');
return DataTables::of($items)->make(true);
}
public function delete(Request $request) {
$item_id = $request->get('item_id');
$item = BookLanguage::find($item_id);
if(empty($item)) {
return response()->json([
'success' => false,
'message' => 'Item not found!',
], 200); // 404
} else {
$item->delete();
return response()->json([
'success' => true,
'message' => 'Item successfully deleted.',
], 200);
}
}
public function update(Request $request) {
$item_id = $request->get('item_id');
$item = BookLanguage::find($item_id);
if(empty($item)) {
return response()->json([
'success' => false,
'message' => 'Item not found!',
], 404);
} else {
$item->name = $request->get('language_name');
$item->save();
return response()->json([
'success' => true,
'message' => 'Item successfully updated.',
], 200);
}
}
ROUTES
// ...
// book_languages
Route::group(['prefix' => 'book-languages', 'as' => 'admin.book_languages.',], function () {
Route::get('all', 'BookLanguageController#index')->name('index');
Route::get('ajax', 'BookLanguageController#ajax')->name('ajax');
Route::post('update', 'BookLanguageController#update')->name('edit');
Route::post('delete', 'BookLanguageController#delete')->name('delete');
});
// ...
I think this can help you and others to build wanted functionality. Here this could be also with more hint-comments, but as it not small, I can answer later via post comments.

i am building a Laravel ERP-like web application and am implementing a CRUD function modal like you. I have made mine a server-side processing application with resource APIs in Laravel. Well, please be reminded that i have cut the #extends(layout.app) & #section('stylesheet') parts to go right into the answer. You should extend them in your own application to make everything work.
View.blade script
<script>
$(document).ready(function() {
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
});
var table = $('#customertable').DataTable({
processing: true,
serverSide: true,
dom: 'B<"top"frli>tp',
ajax: {
url: "{{ route('customer.index') }}", //Accessing server for data
columns: [
{data: 'id'}, //data refers to DB column name
{data: 'name'},
{data: 'chiname'},
{data: 'type'},
{data: 'action'}, //this is an addColumn item from Controller
]
});
$('#createNewcustomer').click(function () {
$('#saveBtn').val("create customer");
$('#customerid').val('');
$('#customerForm').trigger("reset");
$('#modelHeading').html("Create New Customer");
$('#customermodal').modal('show');
});
//Control the modal behavior when clicking the edit button.
$('body').on('click', '.editcustomer', function () {
var customerid = $(this).data('id');
$.get("{{ route('customer.index') }}" +'/' + customerid +'/edit', function (data) {
$('#modelHeading').html("Edit Customer");
$('#saveBtn').val("edit-user");
$('#customermodal').modal('show');
$('#customerid').val(data.id);
$('#name').val(data.name);
$('#chiname').val(data.chiname);
$('#type').val(data.type);
})
});
//Create a brand-new record
$('#createNewcustomer').click(function () {
$('#saveBtn').val("create customer");
$('#customerid').val('');
$('#customerForm').trigger("reset");
$('#modelHeading').html("Create New Customer");
$('#customermodal').modal('show');
});
//Update
$('body').on('click', '.editcustomer', function () {
var customerid = $(this).data('id');
$.get("{{ route('customer.index') }}" +'/' + customerid +'/edit', function (data) {
$('#modelHeading').html("Edit Customer");
$('#saveBtn').val("edit-user");
$('#customermodal').modal('show');
$('#customerid').val(data.id);
$('#name').val(data.name);
$('#chiname').val(data.chiname);
$('#type').val(data.type);
})
});
//Save
$('#saveBtn').click(function (e) {
e.preventDefault();
$(this).html('Sending..');
$.ajax({
data: $('#customerForm').serialize(),
url: "{{ route('customer.store') }}",
type: "POST",
dataType: 'json',
success: function (data) {
$('#customerForm').trigger("reset");
$('#customermodal').modal('hide');
table.draw();
},
error: function (data) {
console.log('Error:', data);
$('#saveBtn').html('Error');}
});
});
//Delete
$('body').on('click', '.deletecustomer', function () {
var id = $(this).data("id");
confirm("Are You sure?");
$.ajax({
type: "DELETE",
url: "{{ route('customer.store') }}"+'/'+id,
success: function (data) {
table.draw();
},
error: function (data) {
console.log('Error:', data);
}
});
});
</script>
View.blade html-table & modal part
#section('content')
<div class="container">
<div class="card-header border-left"><h3><strong> Customer overview</strong></h3></div>
<br>
<div class="row">
<div class="col-md text-right">
<button type="button" class="btn btn-success" data-toggle="modal" href="javascript:void(0)" id="createNewcustomer">Create Record</button>
</div>
</div>
{{-- Modal --}}
<div id="customermodal" class="modal fade" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<h4 class="modal-title" id="modelHeading"></h4>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">&times</span></button></div>
<div class="modal-body">
<form id="customerForm" name="customerForm" class="form-horizontal">
<input type="hidden" name="customerid" id="customerid">
<div class="form-group">
<label for="name" class="col-sm-6 control-label">Customer Name</label>
<div class="col-sm-12">
<input type="text" class="form-control" id="name" name="name" placeholder="Name" value="" maxlength="50" required="">
</div>
</div>
<div class="form-group">
<label class="col-sm-6 control-label">Customer Name</label>
<div class="col-sm-12">
<input type="text" class="form-control" id="chiname" name="chiname" placeholder="Customer Name" value="" maxlength="50" required="">
</div>
</div>
<div class="form-group">
<label class="col-sm-6 control-label">Contract type</label>
<div class="col-sm-12">
<select name="type" id="type" class="form-control">
<option value="" disabled>Type</option>
<option value="Government">Government Contract</option>
<option value="Private">Private Contract</option>
</select>
</div></div>
<br>
<div class="col-sm text-right">
<button type="submit" class="btn btn-outline-secondary" id="saveBtn" value="create">Save changes</button>
</div>
</form>
</div>
</div>
</div>
</div>
{{-- Table --}}
<br>
<div class="row">
<br/>
<br/>
<div class="form-group col-md-12 align-content-center">
<table class="table-fluid center-block" id="customertable">
<thead>
<tr>
<th>id</th>
<th>ChiName</th>
<th>Name</th>
<th>Type</th>
<th>Action</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
</div>
</div>
</div>
#endsection
CustomerController
public function index(Request $request)
{
$customers = Customer::all();
}
return Datatables::of($customers)
->addColumn('action', function($customer){
$btn = 'Edit';
$btn = $btn.' Delete';
return $btn;})
->rawColumns(['action'])
->make(true);
}
return view('customer.Customer'); //my view blade is named Customer under customer dir. put your blade destination here.
}
public function store(Request $request)
{
Customer::updateOrCreate(['id' => $request->customerid],
['name' => $request->name, 'chiname' => $request->chiname,'type' =>$request->type]);
return response()->json(['success'=>'Product saved successfully.']);
}
public function edit($id)
{
$customer = Customer::findorfail($id);
return response()->json($customer);
}
public function destroy($id)
{
Customer::findorfail($id)->delete();
return response()->json(['success'=>'Product deleted successfully.']);
}
Model (pick either A.) $guarded = [] OR B.) $fillable = ['fields','fields'] as you like)
class Customer extends Model
{
protected $fillable = ['name','chiname','type'];
}
web.api (route setting)
Route::resource('customer', 'CustomerController')->middleware('auth');
Migration / DB schema structure
class CreateCustomersTable extends Migration
{
public function up()
{
Schema::create('customers', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('name');
$table->string('chiname');
$table->string('type');
$table->timestamps();
});
}
public function down()
{
Schema::dropIfExists('customers');
}
I have not included any protection in it like gate, auth or so. But basically this is the skeleton of doing CRUD with dataTable in Laravel framework with both JS, Ajax, Jquery, PHP all in one. Kindly be reminded that the queries for such CRUD actions are directly linked to the Database server. If you want to show data processed by the DataTable, use your own jquery function to fetch and show them on the modal. My answer is not the best but i hope it helps you >:)
(I could not post a picture to show you here as i dont have enough reputation lol. gg)

Form in ajax post method sends empty object

I have a webform with several fields I want to capture in an object and send it to a controller method. The form has this code:
<div class="panel-footer">
#using (Html.BeginForm("NuevaOpcion", "Home", FormMethod.Post, new { #id = "frm_nueva_opcion" })) {
#Html.HiddenFor(m => m.Id)
<div class="row">
<div class="col-md-6">
<div class="form-group" style="margin-bottom: .7em;margin-top: .7em;">
<button class="btn btn-success btn-xs" type="button" onclick=" $('#row-nueva-opcion').toggle()" id="add-opcion">
<span class="glyphicon glyphicon-plus-sign"></span> Añadir nueva opción
</button>
</div>
</div>
</div>
<div class="row" id="row-nueva-opcion" style="display:none">
<div class="col-md-10">
<label>
<input type="checkbox" id="opcion-extra" onclick=" $('#nuevo-precio').attr('disabled', !this.checked);" />
Es opción extra
</label>
<div class="input-group" style="margin-bottom:1.7em;">
<input type="text" placeholder="Opción" class="form-control" name="nombre" style="max-width:70%;">
<input type="number" placeholder="Cantidad" min="1" value="1" class="form-control" name="cantidad" style="max-width:15%;">
<input type="number" placeholder="Precio" class="form-control" id="nuevo-precio" name="precio" style="max-width:15%;" disabled>
<input type="hidden" name="idrespuesta" id="idrespuesta" value="#listItems.Select(x=>x.Value).FirstOrDefault()" />
<div class="input-group-addon">€</div>
<span class="input-group-btn">
<a class="btn btn-primary" data-title="Confirmación de acción" data-toggle="modal" data-target="#modal_confirm" onclick="confirmar('frm_nueva_opcion')">
<span class="glyphicon glyphicon-floppy-disk"></span> Guardar
</a>
</span>
</div>
</div>
<div class="col-md-8">
<div class="form-group">
<label>
¿Para que pregunta es la opción?
#Html.DropDownList("OptionSelectedItem", listItems, new { #class = "form-control" })
</label>
</div>
</div>
</div>
}
</div>
To manage it, I have a script that looks like this:
function mostrarModal(idmodal, mensaje, tipo) {
$(idmodal + ' .modal-body h4').addClass(tipo == 'error' ? 'text-danger' : 'text-secondary').html(mensaje);
$(idmodal).modal('show');
}
function enviar(form) {
debugger;
var NuevoPrecio = $('#' + form).attr("nuevo-precio");
if( (NuevoPrecio == null) || (typeof NuevoPrecio === "undefined") ) { var NuevoPrecio = 0; }
var datos = {
Id: $('#' + form).attr("#Id"),
IdPresupuestador: $('#' + form).attr("#idPresupuestador"),
IdRespuesta: $('#' + form).attr("#idrespuesta"),
Cantidad: $('#' + form).attr("#cantidad"),
Nombre: $('#' + form).attr("#nombre"),
Precio: NuevoPrecio,
}
$.post("NuevaOpcion", {
contentType: 'application/json; charset=utf-8',
data: JSON.stringify(datos),
});
}
var modalConfirm = function (callback) {
$("#modal-btn-si").on("click", function () {
callback(true);
$("#modal-confirm").modal('hide');
});
$("#modal-btn-no").on("click", function () {
callback(false);
$("#modal-confirm").modal('hide');
}); };
function confirmar(form, text) {
$("#modal-confirm").modal('show');
modalConfirm(function (confirm) {
if (confirm) {
enviar(form);
}
}); };
Trouble is, I've changed the script on several points and now looks like this because the best I could manage was taking all the form in a single object. I can't work with the properties contained in that object, not on the script and neither on the controller method.
So, the question is, how am I selecting the fields wrong? I've tried with "#", ".", just the name between quotes, and as I said, the best I could get was the entire form in a single object. Thanks in advance.

How to update Parent form from a Modal

I have a modal form that updates a client's address once the "save" button is clicked. I want to use a AJAX call to update the Model's data once the modal form is closed. It would then redirect back to the parent form from which the modal form was called (Index.cshtml). The AJAX call is successfully retrieving the updated modal form's data via the textboxes but it always throws an error.
TL;DR: Want to close a modal form, redirect to parent form and update the text displayed there.
Please see below for my code snippets:
Controller
[ValidateInput(false), HttpPost]
public JsonResult UpdateClientDetails(Client newClientDetails)
{
_clientService.UpdateClient(newClientDetails);
return Json(newClientDetails);
}
$('.btn-update-client').click(function (e) {
var id = $(this).val();
$('#updateClientModal .modal-content').load('/client/UpdateClientDetails/' + id);
$('#updateClientModal').modal('show');
});
View (Index.cshtml)
<div class="panel-body">
<label>Client Id: <span id="ClientId">#id</span></label>
<address>
<span id="Address1">#client.Address1</span>, <span id="Address2">#client.Address2</span><br>
<span id="City">#client.City</span>, <span id="Province">#client.Province</span><br>
<span id="PostalCode">#client.PostalCode</span><br>
<abbr title="Phone">P:</abbr> <span id="PhoneNumber">#client.PhoneNumber</span>
</address>
<div><button value="#id" type="button" class="btn btn-primary btn-update-client">Change</button></div>
</div>
__
Controller Method
public ActionResult Index()
{
return View(_clientService.GetClientList());
}
Modal Form
#model Client
#using ProductManager.Models
<div class="modal-header">
<h4 class="modal-title" id="exampleModalLabel">#Model.Name - ID: #Model.Id</h4>
</div>
#{
var attributes = new Dictionary<string, object>();
attributes.Add("class", "form-horizontal");
}
#using (Html.BeginForm("UpdateClientDetails", "Client", FormMethod.Post, attributes))
{
<div class="modal-body">
<div class="form-group">
<label for="clientAddress1" class="col-xs-3 control-label">Address 1</label>
<div class="col-xs-9">
<input type="text" class="form-control" id="clientAddress1" name="Address1" value="#Model.Address1">
</div>
</div>
<div class="form-group">
<label for="clientAddress2" class="col-xs-3 control-label">Address 2</label>
<div class="col-xs-9">
<input type="text" class="form-control" id="clientAddress2" name="Address2" value="#Model.Address2">
</div>
</div>
<div class="form-group">
<label for="clientCity" class="col-xs-3 control-label">City</label>
<div class="col-xs-9">
<input type="text" class="form-control" id="clientCity" name="City" value="#Model.City">
</div>
</div>
<div class="form-group">
<label for="clientProvince" class="col-xs-3 control-label">Province</label>
<div class="col-xs-9">
#Html.DropDownListFor(model => model.Province, (IEnumerable<SelectListItem>)ViewBag.ProvinceList, new { #class = "form-control", #id = "clientProvince" })
</div>
</div>
<div class="form-group">
<label for="clientPostalCode" class="col-xs-3 control-label">Postal Code</label>
<div class="col-xs-9">
<input type="text" class="form-control" id="clientPostalCode" name="PostalCode" value="#Model.PostalCode">
</div>
</div>
<div class="form-group">
<label for="clientPhoneNumber" class="col-xs-3 control-label">Phone #</label>
<div class="col-xs-9">
<input type="text" class="form-control" id="clientPhoneNumber" name="PhoneNumber" value="#Model.PhoneNumber">
</div>
</div>
<div>
<input type="hidden" id="clientName" name="Name" value="#Model.Name">
</div>
<div>
<input type="hidden" id="clientID" name="Id" value="#Model.Id">
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="submit" class="btn btn-primary">Save changes</button>
</div>
}
<script type="text/javascript">
$('.btn-primary').click(function () {
$.ajax({
type: 'POST',
data: getModelData(),
dataType: 'json',
success: function (data) {
$("#Address1").text(data.Address1);
$("#Address2").text(data.Address2);
$("#City").text(data.City);
$("#Province").text(data.Province);
$("#PostalCode").text(data.PostalCode);
$("#PhoneNumber").text(data.PhoneNumber);
},
error: function () {
alert("Error occured!");
}
});
function getModelData() {
var dataToSubmit = {
Address1: $("#clientAddress1").val(),
Address2: $("#clientAddress2").val(),
City: $("#clientCity").val(),
Province: $("#clientProvince").val(),
PostalCode: $("#clientPostalCode").val(),
PhoneNumber: $("#clientPhoneNumber").val()
};
return dataToSubmit;
}
});
</script>
After clicking the "Save" button on my modal form, it redirects to http://localhost:6969/Client/UpdateClientDetails/1234 with the following string:
{"Address1":"38 Lesmill Rd","Address2":"Suite 1",
"City":"Toronto","Province":"ON","PostalCode":"M3B 2T5",
"PhoneNumber":"(416) 445-4504","Id":2827,"Name":"Advisor Centric"}

If you are being redirected when you click the save function, it could be due to a few reasons. The below snippet should solve your problems.
$(document).on('click', '.btn-primary', function (event) {
event.preventDefault();
$.ajax({
type: 'POST',
data: getModelData(),
dataType: 'json',
success: function (data) {
$("#Address1").text(data.Address1);
$("#Address2").text(data.Address2);
$("#City").text(data.City);
$("#Province").text(data.Province);
$("#PostalCode").text(data.PostalCode);
$("#PhoneNumber").text(data.PhoneNumber);
},
error: function () {
alert("Error occurred!");
}
});
function getModelData() {
var dataToSubmit = {
Address1: $("#clientAddress1").val(),
Address2: $("#clientAddress2").val(),
City: $("#clientCity").val(),
Province: $("#clientProvince").val(),
PostalCode: $("#clientPostalCode").val(),
PhoneNumber: $("#clientPhoneNumber").val()
};
return dataToSubmit;
}
});
Changes to snippet explained:
Instead of using the jQuery click method, I have updated this to use the on method. This will allow us to attach an event to the btn-primary class even if it is loaded after the dom has been rendered.
We are now passing in the event object into the method. This allows us to prevent any default behavior that is expected, for example submitting the form traditionally. This is accomplished with the event.preventDefault() method.