No need for an answer. To test how things worked, I removed the .Skip()
from the LINQ query and it pages exactly how I expected it to.
My data paging is a bit of a mess. When I click on to page 2, rebinding the data source completely removes the first page of data.
So with 14 rows returned initially and a page size of 10 rows, I can click on page 2 where I correctly see the remaining 4 rows, but now I can no longer page because the preceding 10 rows have been removed from the data source.
Here's my code:
private void LoadVouchers(int page)
{
var ViewModel = new List<ListVouchersViewModel>();
var PageSize = gvVouchers.PageSize; // Value = 10.
var Skip = page * PageSize; // Value = 1 * 10 = 10 so skip 10 rows.
int SupplierId = int.TryParse(hdSupplierId.Value, out SupplierId) ? SupplierId : 0;
using (ApplicationDbContext Context = new ApplicationDbContext())
{
var Vouchers = Context.Vouchers.Where(x => x.SupplierId == SupplierId && !x.Deleted)
.OrderBy(x => x.DateIssued)
.Skip(Skip);
foreach (var Voucher in Vouchers)
{
// Add a new ListVoucherViewModel to the list.
}
}
gvVouchers.DataSource = ViewModel;
gvVouchers.DataBind();
}
How can I keep the entirety of the data source but show only those that correspond to the selected page?
private void LoadVouchers(int page)
{
var ViewModel = new List<ListVouchersViewModel>();
var PageSize = gvVouchers.PageSize; // Value = 10.
var Skip = page * PageSize; // Value = 1 * 10 = 10 so skip 10 rows.
int SupplierId = int.TryParse(hdSupplierId.Value, out SupplierId) ? SupplierId : 0;
int totalRowCount = 0;
using (ApplicationDbContext Context = new ApplicationDbContext())
{
totalRowCount = Context.Vouchers.Count();
var Vouchers = Context.Vouchers.Where(x => x.SupplierId == SupplierId && !x.Deleted)
.OrderBy(x => x.DateIssued)
.Skip(Skip);
foreach (var Voucher in Vouchers)
{
// Add a new ListVoucherViewModel to the list.
}
}
gvVouchers.DataSource = ViewModel;
gvVouchers.VirtualItemCount = totalRowCount;
gvVouchers.PageIndex = page;
gvVouchers.DataBind();
}
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