How to add functionality to buttons( Next previous first las

How to add functionality to buttons( Next previous first last) navigation buttons to primary key field using mvc

==========Problem==========

Cannot add functions to Next previous last first for create action using repository pattern based on EmployeeId field

==========Example==========

Employee Id : 5 as last record

IF create action view get loaded it must show max+1 for Employee Id meaning it will show 6

IF Click NextButton become 6

IF Click previousButton become 4 and get another data related as name age,etc...

IF Click LastButton become 5 and get another data related as name age,etc...

IF Click FirstButton become 1 and get another data related as name age,etc...

==========Details Code===========

I work in employee controller in action create

View action create have 4 buttons (First - Last - Next - Previous)

when create action loaded it will come with max number + 1 for EmployeeId

and after that using button previous next last first )

===========Employee Controller Have Create Action=====

public class EmployeesController : Controller
{
private readonly IEmployees _context;
public EmployeesController(IEmployees context)
{
_context = context;
}
// GET: Employees
public async Task Index()
{
return View(await _context.GetAllAsyn());
}
// GET: Employees/Create
public IActionResult Create()
{
How to call functions below
// var maxId = maxid+1;
getNext()
getprevious()
getlast()
getfirst()
return View();
}
===============Generic Repository Pattern(required function I dont know======
public class EFRepository : IRepository where T : class
{
protected TabDbContext _context { get; set; }
public EFRepository(TabDbContext context)
{
_context = context;
}
getNext(){
what implementation write
}
getprevious()
{
what implementation write
}
getlast()
{
what implementation write
}
getfirst()
{
what implementation write
}
public IQueryable GetAll()
{
return _context.Set();
}
public virtual async Task> GetAllAsyn()
{
return await _context.Set().ToListAsync();
}
public virtual T Get(int id)
{
return _context.Set().Find(id);
}
public virtual async Task GetAsync(int id)
{
return await _context.Set().FindAsync(id);
}
public virtual T Find(Expressionbool>> match)
{
return _context.Set().SingleOrDefault(match);
}
public virtual async Task FindAsync(Expressionbool>> match)
{
return await _context.Set().SingleOrDefaultAsync(match);
}
public ICollection FindAll(Expressionbool>> match)
{
return _context.Set().Where(match).ToList();
}
public async Task> FindAllAsync(Expressionbool>> match)
{
return await _context.Set().Where(match).ToListAsync();
}
}
=====Buttons Navigation on Create View Of Employee Controller====
class="title_of_div">
"BtnFirst" style="display:inline">First
"BtnNext" style="display:inline">Next
"BtnPrevious" style="display: inline">Previous
"BtnLast" style="display: inline">Last

view create controlls

===========Create Action Get==========

"Create"

class="form-group">

for

="EmployeeId" class="control-label">

for

="EmployeeId" class="form-control" />

for

="EmployeeId" class="text-danger">

class="form-group">

for

="BranchCode" class="control-label">

for

="BranchCode" class="form-control" />

for

="BranchCode" class="text-danger">

3 Replies

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Laxmidhar Sahoo7y ago
you may call thes metheds in a single action or different actions .That depends on Bussinelogic applied by you.If you would like to call in a single action then pass a parameter for calling type.Then in the swich case call the methods
ahmed elbarbary7y ago
thank you for reply
can you help me in more detail if possible
how to call these function on action ?
are these function will call on create action or make it in separate action ?
how to call them in view of create
can you please show to me that
Laxmidhar Sahoo7y ago
1. public Task GetFirst()
2. {
3. return await _context.Set().FirstOrDefault();
4. }
5. public Task GetLast()
6. {
7. return await _context.Set().LastOrDefault();
8. }