how to insert data in dropdownlist in asp.net core mvc

Asad,

Numbers of items to be displayed based on the "Items per page" in Drop Down list can be achieved using the below example.

Pass the page size as query string value to the Action Result in Controller from the DropDown list select event or Action button.

URL with query string:

/Index?PageSize=20&page=2"

Action Result in Controller:

public ActionResult Index(int? PageSize, int? page)

{

int? DefaultPageSize = 10;

int currentPageIndex = page.HasValue ? page.Value - 1 : 0;

if (PageSize != null) {

DefaultPageSize = PageSize;

}

ViewBag.PageSize = DefaultPageSize;

return View(ProjectsList.ToPagedList(currentPageIndex, (int)DefaultPageSize));

}

Razor view:

@Html.Pager(Model.PageSize, Model.PageNumber, Model.TotalItemCount).Options(o => o.AddRouteValue("PageSize", ViewBag.PageSize))

Displaying @Model.ItemStart - @Model.ItemEnd of @Model.TotalItemCount items(s)

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