DOTNET POINT: CRUD operations using CORE(3.1) MVC, Repository & Dependency Injection, EF code first approach,multi select drop down with checkbox & many more

Dot net core :

using System;

using System.Collections.Generic;

using System.ComponentModel.DataAnnotations;

using System.Linq;

using System.Threading.Tasks;

namespace WebApplication5.Models

{

public class COUNTRY

{

[Key]

public int CID { get; set; }

[MaxLength(50)]

public string CNAME { get; set; }

}

using System;

using System.Collections.Generic;

using System.ComponentModel.DataAnnotations;

using System.Linq;

using System.Threading.Tasks;

namespace WebApplication5.Models

{

public class STATE

{

[Key]

public int SID { get; set; }

[MaxLength(50)]

public string SNAME { get; set; }

public int CID { get; set; }

}

using System;

using System.Collections.Generic;

using System.ComponentModel.DataAnnotations;

using System.Linq;

using System.Threading.Tasks;

namespace WebApplication5.Models

{

public class HOBBY

{

[Key]

public int HID { get; set; }

[MaxLength(50)]

public string HNAME { get; set; }

}

using System;

using System.Collections.Generic;

using System.ComponentModel.DataAnnotations;

using System.Linq;

using System.Threading.Tasks;

namespace WebApplication5.Models

{

public class INTERESET

{

[Key]

public int IID { get; set; }

[MaxLength(50)]

public string INAME { get; set; }

}

using System;

using System.Collections.Generic;

using System.ComponentModel.DataAnnotations;

using System.Linq;

using System.Threading.Tasks;

namespace WebApplication5.Models

{

public class EMP

{

[Key]

public int EID { get; set; }

[MaxLength(50)]

public string NAME { get; set; }

public string ADDRESS { get; set; }

[MaxLength(50)]

public string PASSWORD { get; set; }

[MaxLength(50)]

public string EMAIL { get; set; }

public Decimal SALARY { get; set; }

public DateTime DOB { get; set; }

[MaxLength(50)]

public string GENDER { get; set; }

public string PATH { get; set; }

public int CID { get; set; }

public int SID { get; set; }

}

using System;

using System.Collections.Generic;

using System.ComponentModel.DataAnnotations;

using System.Linq;

using System.Threading.Tasks;

namespace WebApplication5.Models

{

public class HMAP

{

[Key]

public int ID { get; set; }

public int EID { get; set; }

public int HID { get; set; }

}

using System;

using System.Collections.Generic;

using System.ComponentModel.DataAnnotations;

using System.Linq;

using System.Threading.Tasks;

namespace WebApplication5.Models

{

public class IMAP

{

[Key]

public int ID { get; set; }

public int EID { get; set; }

public int IID { get; set; }

}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

using System.ComponentModel.DataAnnotations;

using Microsoft.AspNetCore.Mvc.Rendering;

using Microsoft.AspNetCore.Http;

using Microsoft.AspNetCore.Mvc;

namespace WebApplication5.Models

{

public class EMPVM

{

public EMPVM()

{

INTEREST = new List<SelectListItem>();

LCOUNTRY = new List<SelectListItem>();

LSTATE = new List<SelectListItem>();

LHOBBY = new List<SelectListItem>();

HOBBY = new List<string>();

}

public int EID { get; set; }

[Required(ErrorMessage ="Name should not be blank.")]

public string NAME { get; set; }

[Required(ErrorMessage = "Name should not be blank.")]

[DataType(DataType.MultilineText)]

public string ADDRESS { get; set; }

[Required(ErrorMessage = "Password should not be blank.")]

[StringLength(8, MinimumLength = 6, ErrorMessage = "Password length between 6 to 8 charecters long.")]

[DataType(DataType.Password)]

public string PASSWORD { get; set; }

[Required(ErrorMessage = "Confirm password should not be blank.")]

[DataType(DataType.Password)]

[Display(Name ="CONFIRM PASSWORD")]

[Compare("PASSWORD",ErrorMessage ="Password and confirm passwod must be same.")]

public string CPASSWORD { get; set; }

[Required(ErrorMessage = "Email id should not be blank.")]

[RegularExpression(@"\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*", ErrorMessage ="Invalid mail id.")]

[Remote("Check","Emp",ErrorMessage = "This mail id is already exists")]

public string EMAIL { get; set; }

[Required(ErrorMessage = "Salary should not be blank.")]

[Range(5000,500000,ErrorMessage ="Salary range between 5000 to 500000.")]

public Decimal? SALARY { get; set; }

[Required(ErrorMessage = "DOB should not be blank.")]

public DateTime DOB { get; set; }

[Required(ErrorMessage = "Please select a gender.")]

public string GENDER { get; set; }

[Customvalidation(ErrorMessage ="Please select a interest.")]

public List<SelectListItem> INTEREST { get; set; }

[Required(ErrorMessage = "Please select a country.")]

public int COUNTRY { get; set; }

public List<SelectListItem> LCOUNTRY { get; set; }

[Required(ErrorMessage = "Please select a state.")]

public int STATE { get; set; }

public List<SelectListItem> LSTATE { get; set; }

[Required(ErrorMessage = "Please select a hobby.")]

public List<string> HOBBY { get; set; }

public List<SelectListItem> LHOBBY { get; set; }

[Required(ErrorMessage = "Please select a photo.")]

public IFormFile PHOTO { get; set; }

public string PATH { get; set; }

public void Fillddl(List<SelectListItem> lcountry, List<SelectListItem> lhobby, List<SelectListItem> linterest, List<SelectListItem> lstate=null)

{

LCOUNTRY = lcountry;

LHOBBY = lhobby;

INTEREST = linterest;

LSTATE = lstate;

}

public class Customvalidation: ValidationAttribute

{

public override bool IsValid(object value)

{

if (value == null)

return false;

else

return (((List<SelectListItem>)value).Count(m => m.Selected == true) > 0);

}

using Microsoft.EntityFrameworkCore;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

namespace WebApplication5.Models

{

public class AppDbContext :DbContext

{

public AppDbContext(DbContextOptions<AppDbContext> options):base(options)

{

}

public DbSet<COUNTRY> Countries { get; set; }

public DbSet<STATE> States { get; set; }

public DbSet<HOBBY> Hobbies { get; set; }

public DbSet<INTERESET> Interesets { get; set; }

public DbSet<EMP> Emps { get; set; }

public DbSet<HMAP> Hmaps { get; set; }

public DbSet<IMAP> Imaps { get; set; }

protected override void OnModelCreating(ModelBuilder modelBuilder)

{

modelBuilder.Entity<COUNTRY>().HasData(new COUNTRY() { CID=1,CNAME="X"},new COUNTRY() { CID = 2, CNAME = "Y" },new COUNTRY() { CID = 3, CNAME = "Z" });

modelBuilder.Entity<STATE>().HasData(new STATE { SID = 1, SNAME = "A", CID = 1 }, new STATE { SID = 2, SNAME = "B", CID = 1 }, new STATE { SID = 3, SNAME = "C", CID = 2 }, new STATE { SID = 4, SNAME = "D", CID = 2 }, new STATE { SID = 5, SNAME = "E", CID = 3 }, new STATE { SID = 6, SNAME = "F", CID = 3 });

modelBuilder.Entity<HOBBY>().HasData(new HOBBY { HID = 1, HNAME = "Reading" }, new HOBBY { HID = 2, HNAME = "Writing" }, new HOBBY { HID = 3, HNAME = "Singing" }, new HOBBY { HID = 4, HNAME = "Playing" });

modelBuilder.Entity<INTERESET>().HasData(new INTERESET { IID = 1, INAME = "Cricket" }, new INTERESET { IID = 2, INAME = "Football" }, new INTERESET { IID = 3, INAME = "Baseball" }, new INTERESET { IID = 4, INAME = "Hockey" });

}

Install the following 2 NuGet packages.

Microsoft.EntityFrameworkCore.SqlServer

Microsoft.EntityFrameworkCore.Tools

Add connection string in appsettings.json

{

"Logging": {

"LogLevel": {

"Default": "Information",

"Microsoft": "Warning",

"Microsoft.Hosting.Lifetime": "Information"

}

"AllowedHosts": "*",

"ConnectionStrings": {

"DbConnection": "Data Source=(localdb)\\MSSQLLocalDB;Initial Catalog=DBTest789;Integrated Security=True;Connect Timeout=30;Encrypt=False;TrustServerCertificate=False;ApplicationIntent=ReadWrite;MultiSubnetFailover=False"

}

Call the connection in Startup class

using System;

using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

using Microsoft.AspNetCore.Builder;

using Microsoft.AspNetCore.Hosting;

using Microsoft.EntityFrameworkCore;

using Microsoft.Extensions.Configuration;

using Microsoft.Extensions.DependencyInjection;

using Microsoft.Extensions.Hosting;

using WebApplication5.Models;

namespace WebApplication5

{

public class Startup

{

public Startup(IConfiguration configuration)

{

Configuration = configuration;

}

public IConfiguration Configuration { get; }

// This method gets called by the runtime. Use this method to add services to the container.

public void ConfigureServices(IServiceCollection services)

{

services.AddControllersWithViews();

services.AddDbContextPool<AppDbContext>(options => options.UseSqlServer(Configuration.GetConnectionString("DbConnection")));

services.AddScoped<IDalRepository, DalRepository>();

}

// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)

{

if (env.IsDevelopment())

{

app.UseDeveloperExceptionPage();

}

else

{

app.UseExceptionHandler("/Home/Error");

}

app.UseStaticFiles();

app.UseRouting();

app.UseAuthorization();

app.UseEndpoints(endpoints =>

{

endpoints.MapControllerRoute(

name: "default",

pattern: "{controller=Home}/{action=Index}/{id?}");

});

}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

namespace WebApplication5.Models

{

public interface IDalRepository

{

Task<IEnumerable<EMP>> Gete();

Task<IEnumerable<COUNTRY>> Getc();

Task<IEnumerable<STATE>> Gets(int CID);

Task<IEnumerable<HOBBY>> Geth();

Task<IEnumerable<INTERESET>> Geti();

Task<IEnumerable<HMAP>> Gethm();

Task<IEnumerable<IMAP>> Getim();

Task<EMP> Get(int EID);

Task<EMP> Save(EMPVM eMPVM);

Task<EMP> Update(EMPVM eMPVM);

Task<EMP> Delete(int EID);

}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

using Microsoft.EntityFrameworkCore;

namespace WebApplication5.Models

{

public class DalRepository : IDalRepository

{

private readonly AppDbContext dbContext;

public DalRepository(AppDbContext DbContext)

{

this.dbContext = DbContext;

}

public async Task<EMP> Delete(int EID)

{

EMP emp = await dbContext.Emps.FindAsync(EID);

dbContext.Entry(emp).State = EntityState.Deleted;

dbContext.Hmaps.RemoveRange(dbContext.Hmaps.Where(m => m.EID == EID));

dbContext.Imaps.RemoveRange(dbContext.Imaps.Where(m => m.EID == EID));

await dbContext.SaveChangesAsync();

return emp;

}

public async Task<IEnumerable<COUNTRY>> Getc()

{

return await dbContext.Countries.ToListAsync();

}

public async Task<IEnumerable<EMP>> Gete()

{

return await dbContext.Emps.ToListAsync();

}

public async Task<EMP> Get(int EID)

{

return await dbContext.Emps.FirstOrDefaultAsync(m => m.EID == EID);

}

public async Task<IEnumerable<HOBBY>> Geth()

{

return await dbContext.Hobbies.ToListAsync();

}

public async Task<IEnumerable<HMAP>> Gethm()

{

return await dbContext.Hmaps.ToListAsync();

}

public async Task<IEnumerable<INTERESET>> Geti()

{

return await dbContext.Interesets.ToListAsync();

}

public async Task<IEnumerable<IMAP>> Getim()

{

return await dbContext.Imaps.ToListAsync();

}

public async Task<IEnumerable<STATE>> Gets(int CID)

{

return await dbContext.States.Where(m => m.CID == CID).ToListAsync();

}

public async Task<EMP> Save(EMPVM eMPVM)

{

EMP emp = new EMP

{

NAME = eMPVM.NAME,

ADDRESS = eMPVM.ADDRESS,

PASSWORD = eMPVM.PASSWORD,

EMAIL = eMPVM.EMAIL,

SALARY = eMPVM.SALARY.Value,

DOB = eMPVM.DOB,

GENDER = eMPVM.GENDER,

CID = eMPVM.COUNTRY,

SID = eMPVM.STATE,

PATH = eMPVM.PATH,

};

dbContext.Entry(emp).State = EntityState.Added;

await dbContext.SaveChangesAsync();

await dbContext.Hmaps.AddRangeAsync(eMPVM.HOBBY.Select(m => new HMAP { EID = emp.EID, HID = Convert.ToInt32(m) }));

await dbContext.Imaps.AddRangeAsync(eMPVM.INTEREST.Where(n => n.Selected == true).Select(m => new IMAP { EID = emp.EID, IID = Convert.ToInt32(m.Value)}));

await dbContext.SaveChangesAsync();

return emp;

}

public async Task<EMP> Update(EMPVM eMPVM)

{

EMP emp = await dbContext.Emps.FindAsync(eMPVM.EID);

emp.NAME = eMPVM.NAME;

emp.ADDRESS = eMPVM.ADDRESS;

emp.PASSWORD = eMPVM.PASSWORD;

emp.EMAIL = eMPVM.EMAIL;

emp.SALARY = eMPVM.SALARY.Value;

emp.DOB = eMPVM.DOB;

emp.GENDER = eMPVM.GENDER;

emp.CID = eMPVM.COUNTRY;

emp.SID = eMPVM.STATE;

if(eMPVM.PATH!=null)

emp.PATH = eMPVM.PATH;

dbContext.Entry(emp).State = EntityState.Modified;

dbContext.Hmaps.RemoveRange(dbContext.Hmaps.Where(m => m.EID == eMPVM.EID));

dbContext.Imaps.RemoveRange(dbContext.Imaps.Where(m => m.EID == eMPVM.EID));

await dbContext.Hmaps.AddRangeAsync(eMPVM.HOBBY.Select(m => new HMAP { EID = emp.EID, HID = Convert.ToInt32(m) }));

await dbContext.Imaps.AddRangeAsync(eMPVM.INTEREST.Where(n => n.Selected == true).Select(m => new IMAP { EID = emp.EID, IID = Convert.ToInt32(m.Value) }));

await dbContext.SaveChangesAsync();

return emp;

}

}
--
Create and execute database migrations
Use the following 2 commands to create and execute the initial database migration

Add-Migration <Migration Name>
Update-Database
below commands for removing migration
Update-Database <Migration Name>
remove-migration

MVC Controller :

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Rendering;
using WebApplication5.Models;
using Microsoft.AspNetCore.Hosting;

namespace WebApplication5.Controllers
{
public class EmpController : Controller
{
#region Declaretion
private readonly IDalRepository dal;
private readonly IHostingEnvironment hostingEnvironment;
#endregion
public EmpController(IDalRepository Dal, IHostingEnvironment HostingEnvironment)
{
this.dal = Dal;
this.hostingEnvironment = HostingEnvironment;
}
[HttpGet]
public async Task<IActionResult> Index()
{
return View(await dal.Gete());
}
[HttpGet]
public async Task<IActionResult> Create()
{
EMPVM eMPVM = new EMPVM();
var Lcountry = await dal.Getc();
eMPVM.Fillddl(Lcountry.Select(m => new SelectListItem { Value = m.CID.ToString(), Text = m.CNAME }).ToList(), dal.Geth().Result.Select(m => new SelectListItem { Value = m.HID.ToString(), Text = m.HNAME }).ToList(), dal.Geti().Result.Select(m => new SelectListItem { Value = m.IID.ToString(), Text = m.INAME }).ToList());
return View(eMPVM);
}
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Create(EMPVM eMPVM)
{
if (ModelState.IsValid)
{
string uniqueFileName = null;
string filePath = null;
string uploadsFolder = string.Empty;
if (eMPVM.PHOTO != null)
{
uploadsFolder = Path.Combine(hostingEnvironment.WebRootPath, "Images");
uniqueFileName = Guid.NewGuid().ToString() + "_" + eMPVM.PHOTO.FileName.Substring(3);
filePath = Path.Combine(uploadsFolder, uniqueFileName);
eMPVM.PHOTO.CopyTo(new FileStream(filePath, FileMode.Create));
}
eMPVM.PATH = uniqueFileName;
EMP emp = await dal.Save(eMPVM);
return RedirectToAction("Index");
}
eMPVM.Fillddl(dal.Getc().Result.Select(m => new SelectListItem { Value = m.CID.ToString(), Text = m.CNAME }).ToList(), dal.Geth().Result.Select(m => new SelectListItem { Value = m.HID.ToString(), Text = m.HNAME }).ToList(), dal.Geti().Result.Select(m => new SelectListItem { Value = m.IID.ToString(), Text = m.INAME }).ToList());
return View(eMPVM);
}
[HttpGet]
public async Task<IActionResult> Edit(int id)
{

EMP emp = await dal.Get(id);
EMPVM eMPVM = new EMPVM()
{
EID = emp.EID,
NAME = emp.NAME,
ADDRESS = emp.ADDRESS,
DOB = emp.DOB,
EMAIL = emp.EMAIL,
GENDER = emp.GENDER,
COUNTRY = emp.CID,
STATE = emp.SID,
PATH = emp.PATH,
HOBBY = dal.Gethm().Result.Where(m => m.EID == id).Select(n => n.HID.ToString()).ToList(),
SALARY = emp.SALARY,
};
var data = (from x in dal.Geti().Result
join y in dal.Getim().Result.Where(x => x.EID == id)
on x.IID equals y.IID
select new SelectListItem { Value = x.IID.ToString(), Text = x.INAME, Selected = true }).ToList();
var data1 = dal.Geti().Result.Select(x => new { x.IID, x.INAME }).Except(data.Select(y => new { IID = Convert.ToInt32(y.Value), INAME = y.Text })).Select(z => new SelectListItem { Value = z.IID.ToString(), Text = z.INAME, Selected = false }).ToList();
var data3 = data.Union(data1);
var Lcountry = await dal.Getc();
eMPVM.Fillddl(Lcountry.Select(m => new SelectListItem { Value = m.CID.ToString(), Text = m.CNAME }).ToList(), dal.Geth().Result.Select(m => new SelectListItem { Value = m.HID.ToString(), Text = m.HNAME }).ToList(), data3.ToList(), dal.Gets(eMPVM.COUNTRY).Result.Select(m => new SelectListItem { Value = m.SID.ToString(), Text = m.SNAME }).ToList());
return View(eMPVM);

}
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Edit(EMPVM eMPVM)
{
ModelState.Remove("PASSWORD");
ModelState.Remove("CPASSWORD");
ModelState.Remove("PHOTO");
if (ModelState.IsValid)
{
string uniqueFileName = null;
string filePath = null;
string uploadsFolder = string.Empty;
if (eMPVM.PHOTO != null)
{
uploadsFolder = Path.Combine(hostingEnvironment.WebRootPath, "Images");
uniqueFileName = Guid.NewGuid().ToString() + "_" + eMPVM.PHOTO.FileName.Substring(3);
filePath = Path.Combine(uploadsFolder, uniqueFileName);
eMPVM.PHOTO.CopyTo(new FileStream(filePath, FileMode.Create));
eMPVM.PATH = uniqueFileName;
}
EMP emp = await dal.Update(eMPVM);
return RedirectToAction("Index");
}
eMPVM.Fillddl(dal.Getc().Result.Select(m => new SelectListItem { Value = m.CID.ToString(), Text = m.CNAME }).ToList(), dal.Geth().Result.Select(m => new SelectListItem { Value = m.HID.ToString(), Text = m.HNAME }).ToList(), dal.Geti().Result.Select(m => new SelectListItem { Value = m.IID.ToString(), Text = m.INAME }).ToList());
return View(eMPVM);
}
[HttpGet]
public async Task<IActionResult> Delete(int id)
{
EMP emp = await dal.Get(id);
EMPVM eMPVM = new EMPVM()
{
EID = emp.EID,
NAME = emp.NAME,
GENDER = emp.GENDER
};
return View(eMPVM);
}
[HttpPost]
public async Task<IActionResult> Delete(EMPVM eMPVM)
{
EMP emp = await dal.Delete(eMPVM.EID);
return RedirectToAction("Index");
}
[HttpGet]
public async Task<JsonResult> Fill(int CID)
{
return Json(await dal.Gets(CID));
}
[HttpGet]
public async Task<JsonResult> Check(string EMAIL)
{
var data = await dal.Gete();
return Json(!data.Any(p => p.EMAIL.Trim().ToLower() == EMAIL.Trim().ToLower()));
}
}
}

Index View :

@model IEnumerable<WebApplication5.Models.EMP>

ViewData["Title"] = "Index";

}

<p>

</p>

<tr>

<th>

@Html.DisplayNameFor(model => model.NAME)

</th>

<th>

@Html.DisplayNameFor(model => model.ADDRESS)

</th>

<th>

@Html.DisplayNameFor(model => model.EMAIL)

</th>

<th>

@Html.DisplayNameFor(model => model.SALARY)

</th>

<th>

@Html.DisplayNameFor(model => model.DOB)

</th>

<th>

@Html.DisplayNameFor(model => model.GENDER)

</th>

<th>

PHOTO

</th>

<th>ACTION</th>

</tr>

</thead>

<tbody>

@foreach (var item in Model) {

<tr>

<td>

@Html.DisplayFor(modelItem => item.NAME)

</td>

<td>

@Html.DisplayFor(modelItem => item.ADDRESS)

</td>

<td>

@Html.DisplayFor(modelItem => item.EMAIL)

</td>

<td>

@Html.DisplayFor(modelItem => item.SALARY)

</td>

<td>

string s = string.Format("{0:dd-MMM-yy}", item.DOB);

}

</td>

<td>

@Html.DisplayFor(modelItem => item.GENDER)

</td>

<td>

string t = "~/images/" + item.PATH;

}

</td>

<td>

@Html.ActionLink("Edit", "Edit", new { id=item.EID }) |

@Html.ActionLink("Delete", "Delete", new { id=item.EID })

</td>

</tr>

}

</tbody>

</table>

Create View :

@model WebApplication5.Models.EMPVM

@{
ViewData["Title"] = "Create";
}

<div class="row">
<div class="col-md-4">
<form asp-action="Create" enctype="multipart/form-data" method="post" asp-antiforgery="true">
<div asp-validation-summary="ModelOnly" class="text-danger"></div>
<div class="form-group">
<label asp-for="NAME" class="control-label"></label>
<input asp-for="NAME" class="form-control" />
<span asp-validation-for="NAME" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="ADDRESS" class="control-label"></label>
<textarea asp-for="ADDRESS" class="form-control"></textarea>
<span asp-validation-for="ADDRESS" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="PASSWORD" class="control-label"></label>
<input asp-for="PASSWORD" class="form-control" />
<span asp-validation-for="PASSWORD" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="CPASSWORD" class="control-label"></label>
<input asp-for="CPASSWORD" class="form-control" />
<span asp-validation-for="CPASSWORD" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="EMAIL" class="control-label"></label>
<input asp-for="EMAIL" class="form-control" />
<span asp-validation-for="EMAIL" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="SALARY" class="control-label"></label>
<input asp-for="SALARY" class="form-control" />
<span asp-validation-for="SALARY" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="DOB" class="control-label"></label>
<input asp-for="DOB" class="form-control" autocomplete="off" />
<span asp-validation-for="DOB" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="GENDER" class="control-label"></label><br />
<input type="radio" asp-for="GENDER" value="Male" />Male
<input type="radio" asp-for="GENDER" value="Female" />Female
<span asp-validation-for="GENDER" class="text-danger"></span>
</div>
<div class="form-group">

<label asp-for="INTEREST" class="control-label"></label><br />
@{

for (int i = 0; i < Model.INTEREST.Count; i++)
{
<fieldset>
<legend></legend>
<input type="hidden" asp-for="@Model.INTEREST[i].Value" />
<input type="hidden" asp-for="@Model.INTEREST[i].Value" />
<input type="checkbox" asp-for="@Model.INTEREST[i].Selected" /> @Model.INTEREST[i].Text

</fieldset>
}

}

<span asp-validation-for="INTEREST" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="COUNTRY" class="control-label"></label>
<select asp-for="COUNTRY" class="form-control" asp-items="Model.LCOUNTRY">
<option value="">Select</option>
</select>
<span asp-validation-for="COUNTRY" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="STATE" class="control-label"></label>
<select asp-for="STATE" class="form-control" asp-items="Model.LSTATE">
<option value="">Select</option>
</select>
<span asp-validation-for="STATE" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="HOBBY" class="control-label"></label>
<select asp-for="HOBBY" class="form-control" multiple asp-items="Model.LHOBBY" style="width:350px">
</select>
<span asp-validation-for="HOBBY" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="PHOTO" class="control-label"></label>
<input asp-for="PHOTO" class="form-control" type="file" />
<span asp-validation-for="PHOTO" class="text-danger"></span>
</div>
<div class="form-group">
<input type="submit" value="Create" class="btn btn-primary" />
</div>
</form>
</div>
</div>

<div>
<a asp-action="Index">Back to List</a>
</div>

@section Scripts {
@{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
<script type="text/javascript">
$(function () {
$('#DOB').attr("type", "");
$('#DOB').datepicker({
dateFormat: 'dd-mm-yy'
});
$('#SALARY').val('');
$('#HOBBY').multiselect();
$('#COUNTRY').change(function () {
$('#STATE').empty();
$('#STATE').append("<option>Select</option>");
$.ajax({
url: '@Url.Action("Fill","Emp")',
type: 'Get',
dataType: 'Json',
contentType: 'application/json; charset=utf-8',
data: { CID: $(this).val() },
success: function (data) {
$.each(data, function (i,v) {
$('#STATE').append("<option value='"+v.SID+"'>"+v.SNAME+"</option>");
})
}
});
})
});
</script>
}

Edit View :

@model WebApplication5.Models.EMPVM

@{
ViewData["Title"] = "Edit";
}

<div class="row">
<div class="col-md-4">
<form asp-action="Edit" enctype="multipart/form-data" method="post" asp-antiforgery="true">
<div asp-validation-summary="ModelOnly" class="text-danger"></div>
<div class="form-group">
<label asp-for="NAME" class="control-label"></label>
<input asp-for="NAME" class="form-control" />
<input type="hidden" asp-for="EID" />
<span asp-validation-for="NAME" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="ADDRESS" class="control-label"></label>
<textarea asp-for="ADDRESS" class="form-control"></textarea>
<span asp-validation-for="ADDRESS" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="EMAIL" class="control-label"></label>
<input asp-for="EMAIL" class="form-control" />
<span asp-validation-for="EMAIL" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="SALARY" class="control-label"></label>
<input asp-for="SALARY" class="form-control" />
<span asp-validation-for="SALARY" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="DOB" class="control-label"></label>
<input asp-for="DOB" class="form-control" autocomplete="off" />
<span asp-validation-for="DOB" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="GENDER" class="control-label"></label><br />
<input type="radio" asp-for="GENDER" value="Male" />Male
<input type="radio" asp-for="GENDER" value="Female" />Female
<span asp-validation-for="GENDER" class="text-danger"></span>
</div>
<div class="form-group">

<label asp-for="INTEREST" class="control-label"></label><br />
@{

for (int i = 0; i < Model.INTEREST.Count; i++)
{
<fieldset>
<legend></legend>
<input type="hidden" asp-for="@Model.INTEREST[i].Value" />
<input type="hidden" asp-for="@Model.INTEREST[i].Value" />
<input type="checkbox" asp-for="@Model.INTEREST[i].Selected" /> @Model.INTEREST[i].Text
</fieldset>
}

}

<span asp-validation-for="INTEREST" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="COUNTRY" class="control-label"></label>
<select asp-for="COUNTRY" class="form-control" asp-items="Model.LCOUNTRY">
<option value="">Select</option>
</select>
<span asp-validation-for="COUNTRY" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="STATE" class="control-label"></label>
<select asp-for="STATE" class="form-control" asp-items="Model.LSTATE">
<option value="">Select</option>
</select>
<span asp-validation-for="STATE" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="HOBBY" class="control-label"></label>
<select asp-for="HOBBY" class="form-control" multiple asp-items="Model.LHOBBY" style="width:350px">
</select>
<span asp-validation-for="HOBBY" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="PHOTO" class="control-label"></label>
<input asp-for="PHOTO" class="form-control" type="file" />
<span asp-validation-for="PHOTO" class="text-danger"></span>
</div>
<div class="form-group">
<input type="submit" value="Create" class="btn btn-primary" />
</div>
</form>
</div>
</div>

<div>
<a asp-action="Index">Back to List</a>
</div>

@section Scripts {
@{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
<script type="text/javascript">
$(function () {
$("#PASSWORD").rules("remove", "required")
$("#CPASSWORD").rules("remove", "required")
$("#PHOTO").rules("remove", "required")
$("#EMAIL").rules("remove", "remote")
$('#DOB').attr("type", "");
$('#DOB').datepicker({
dateFormat: 'dd-mm-yy'
});
$('#HOBBY').multiselect();
$('#COUNTRY').change(function () {
$('#STATE').empty();
$('#STATE').append("<option>Select</option>");
$.ajax({
url: '@Url.Action("Fill","Emp")',
type: 'Get',
dataType: 'Json',
contentType: 'application/json; charset=utf-8',
data: { CID: $(this).val() },
success: function (data) {
$.each(data, function (i,v) {
$('#STATE').append("<option value='"+v.SID+"'>"+v.SNAME+"</option>");
})
}
});
})
});
</script>
}

Layout Page :

<!DOCTYPE html>

<head>

<title>@ViewData["Title"] - WebApplication5</title>

</head>

<body>

<a class="navbar-brand" asp-area="" asp-controller="Home" asp-action="Index">WebApplication5</a>

<button class="navbar-toggler" type="button" data-toggle="collapse" data-target=".navbar-collapse" aria-controls="navbarSupportedContent"

aria-expanded="false" aria-label="Toggle navigation">

</button>

</li>

<a class="nav-link text-dark" asp-area="" asp-controller="Emp" asp-action="Index">Employee</a>

</li>

</ul>

</div>

</nav>

</header>

@RenderBody()

</main>

</div>

</div>

</footer>

@RenderSection("Scripts", required: false)

</body>

</html>

DOTNET POINT

Monday 27 April 2020

CRUD operations using CORE(3.1) MVC, Repository & Dependency Injection, EF code first approach,multi select drop down with checkbox & many more

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