Getting error on using partial view in asp.net core 2.2

class="gallery-grids">

@foreach (var services in Model)

{

class="col-md-4 gallery-grid">

class="grid">

class="effect-apollo">

class="example-image-link" asp-controller="OurServices" asp-action="SingleView" asp-route-serviceId="@Convert.ToInt32(services.Service_ID)" data-lightbox="example-set" >

"~/images/g8.jpg" alt="" />

@services.ServiceName

}

class="clearfix">

Our Services Controller:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using NiyaSpa.Models;
namespace NiyaSpa.Controllers
{
public class OurServicesController : Controller
{
private NiyaDBContext _dbcontext=null ;
public OurServicesController(NiyaDBContext dbContext)
{
_dbcontext = dbContext;
}
public IActionResult OurServices()
{
return View(_dbcontext.Services.ToList());
}
public IActionResult SingleView(int ServiceId)
{
var serviceName = _dbcontext.Services.SingleOrDefault(s => s.Service_ID == ServiceId)?.ServiceName;
ViewBag.service_name = serviceName;
return View();
}
}
}

Single View Code

@model NiyaSpa.Models.Booking
@{
ViewData["Title"] = "SingleView";
Layout = "~/Views/Shared/_NiyaSpaLayout.cshtml";
}
@{
var sname = ViewBag.service_name;
}
class="w3_breadcrumb">
class="breadcrumb-inner">
- "">Our Services /
- @sname

class="w3_content_agilleinfo_inner">

class="container">

await Html.PartialAsync("_Facials", new Booking());

}

_Facial - Partial View Code

@model NiyaSpa.Models.Booking
class="inner-agile-w3l-part-head">
class="w3l-inner-h-title">Facials

"text-align:center; font-size:medium;">

We provide skin specific facials as listed below. Each contains 5-8 step treatments including cleansing, chemical or physical exfoliation, gel treatment, steam facial, toning and moisturizing. Our blood circulating facial massage allows products to absorb deep into the skin giving clients long lasting results.

class="row">

class="card-deck">

@foreach (var facialService in Model as IEnumerable)

{

class="col-md-4">

class="card border-primary mb-3" style="width: 18rem;">

"width:280px; height:180px; border-radius:10px; border-width:thin;" class="card-img-top" src="~/images/t2.jpg" alt="Card image cap">

class="card-body">

class="card-title" style="font-weight:600; margin-bottom:10px; margin-top:10px">@facialService.SubService.ServiceName

class="card-text" style="margin:0 0 10px; font-size:small;">

@facialService.SubService.Description.Substring(0, 100);

"modal" data-toggle="modal" data-target="#ModalDescription">View More...

"OurServices"

asp-action="BookAppointment" data-toggle="modal" data-target="#ModalBooking" class="btn btn-primary">Book Now

class="modal fade" id="ModalDescription" tabindex="-1" role="dialog" aria-labelledby="exampleModalCenterTitle" aria-hidden="true">

class="modal-dialog modal-dialog-centered" role="document">

class="modal-content">

class="modal-header">

class="modal-title" id="exampleModalLongTitle" style="font-weight:600; font-size:18px">@facialService.SubService.ServiceName

"button" class="close" data-dismiss="modal" aria-label="Close" style="font-size:22px; margin-top:-23px;">

"true"

>×

class="modal-body" style="font-size:15px; padding:10px 15px; text-align:justify;">

@facialService.SubService.Description.Split("", StringSplitOptions.None) @facialService.SubService.Description

class="modal-footer">

"button" class="btn btn-secondary" data-dismiss="modal">Close

}

class="modal fade" id="ModalBooking" tabindex="-1" role="dialog" aria-labelledby="exampleModalCenterTitle" aria-hidden="true">

class="modal-dialog modal-dialog-centered" role="document">

class="modal-content">

class="modal-header">

class="modal-title" id="exampleModalLongTitle" style="font-weight:600; color:crimson; font-family:cursive; font-size:28px; text-align:center;">Book an Appointment

"button" class="close" data-dismiss="modal" aria-label="Close" style="font-size:22px; margin-top:-28px;">

"true"

>×

"margin-top:10px;">

"color:crimson; font-size:small;">Booking Policies

"font-size:11px; margin-top:2px;">

Please arrive 15 mins before your appointment.

For appointment cancellation, please call 24 hours before.

To make your experience more enjoyable please turn off your phone during body massages and facial.

class="modal-body" style="font-size:15px; padding:15px 15px; text-align:justify; margin-top:-15px">

class="signup-form">

"OurServices"

asp-action="BookAppointment" method="post">

class="form-group">

class="input-group">

class="input-group-addon">class="fa fa-user">

"text" asp-for="Customer.CustomerName" placeholder="Customer Name" class="form-control" required="required" />

class="form-group">

class="input-group">

class="input-group-addon">class="fa fa-paper-plane">

"email" asp-for="Customer.Email_ID" placeholder="Email Address" class="form-control" required="required" />

class="form-group">

class="input-group">

class="input-group-addon">class="fa fa-phone">

"text" asp-for="Customer.PhoneNumber" placeholder="Contact Number" class="form-control" required="required" />

class="form-group">

class="input-group date">

class="input-group-addon">

class="fa fa-calendar">

"text" class="form-control pull-right" asp-for="BookingDate" placeholder="Appointment Date" required="required" id="datepicker">

class="form-group">

class="input-group">

class="input-group-addon">class="fa fa-list">

"text" asp-for="SubService.ServiceName" class="form-control" placeholder="Service Name" disabled="disabled" />

class="form-group">

class="input-group">

class="input-group-addon">class="fa fa-dollar">

"text" asp-for="TotalAmount" class="form-control" placeholder="Total Amount" disabled="disabled" />

class="form-group">

"submit" class="btn btn-primary btn-block btn-lg" style="background-color:crimson; border-color:crimson;">Book Appointment

@*class="modal-footer">

"button" class="btn btn-secondary" data-dismiss="modal">Close

I am invoking partial view using @await Html.PartialAysnc("viewname","model");

6 Replies

Know the answer? Post it — somebody with the same question will find it here.

Akash Patel7y ago
I tried changing to full path but getting same error.
0
Salman Beg7y ago
Can you try the full path of _Facials in place of just _Facials. Thanks
0
Akash Patel7y ago
Yes _Facials is the right in the code but _Facial is the title i have used in the question. So nothing to worry
0
Salman Beg7y ago
Hi.
Can you please change your PartialAsync as like this,
@await Html.PartialAsync("~/Encoder/MVC/_Facials.cshtml", new Booking())
I used this link for reference, https://stackoverflow.com/questions/52013771/asp-net-core-nullreferenceexception-when-just-accessing-model
Where in the 1st Parameter of PartialAsync, you need to give total path.
One more thing, In the PartialAsync method you mentioned _Facials as 1st Parameter but on the top of _Facials Partial View Code you mentioned as _Facial. So can you please check all those things and rectify if it is wrong.
Thanks.
0
Akash Patel7y ago
in Single view code when:

@await html.partialasync() is invoked.
0
Salman Beg7y ago
Hi.
Can you tell me exactly, in which line you are getting exception. Basically, this error "NullReference Exception- Object reference not set to an instance of an object" will arise when you create an instance of a class but that object is null and when you use this object in some other place then it will raise such type of error. So can you please debug in your code and check exactly where you are getting that null object.
Thanks.
0