private PageChanges IncrementPageRotation(PageChanges currentRotation)
{
switch (currentRotation)
{
case PageChanges.Rotate90:
return(PageChanges.Rotate180);
case PageChanges.Rotate180:
return(PageChanges.Rotate270);
case PageChanges.Rotate270:
return(PageChanges.None);
case PageChanges.Remove:
return(PageChanges.Remove);
case PageChanges.None:
return(PageChanges.Rotate90);
default:
return(currentRotation);
}
}
private void Navigate(PageChanges change)
{
uint totalRecords;
uint newPageSize;
if (PageContract == null)
{
return;
}
totalRecords = PageContract.GetTotalCount();
newPageSize = (uint)cmbPageSizes.SelectedItem;
if (totalRecords == 0)
{
ItemsSource.Clear();
TotalPages = 1;
Page = 1;
}
else
{
TotalPages = (totalRecords / newPageSize) + (uint)((totalRecords % newPageSize == 0) ? 0 : 1);
}
uint newPage = 1;
switch (change)
{
case PageChanges.First:
if (Page == 1)
{
return;
}
break;
case PageChanges.Previous:
newPage = (Page - 1 > TotalPages) ? TotalPages : (Page - 1 < 1) ? 1 : Page - 1;
break;
case PageChanges.Current:
newPage = (Page > TotalPages) ? TotalPages : (Page < 1) ? 1 : Page;
break;
case PageChanges.Next:
newPage = (Page + 1 > TotalPages) ? TotalPages : Page + 1;
//(Page + 1) < 1 ? 1 :
break;
case PageChanges.Last:
if (Page == TotalPages)
{
return;
}
newPage = TotalPages;
break;
default:
break;
}
uint StartingIndex = (newPage - 1) * newPageSize;
uint oldPage = Page;
RaisePreviewPageChange(Page, newPage);
Page = newPage;
ItemsSource.Clear();
ICollection <object> fetchData = PageContract.GetRecordsBy(StartingIndex, newPageSize, FilterTag);
foreach (object row in fetchData)
{
ItemsSource.Add(row);
}
RaisePageChanged(oldPage, Page);
}
public void Navigate(PageChanges change)
{
uint totalRecords;
uint newPageSize;
if (this.MyQuery == null || this.cmbPageSizes.ItemsSource == null)
{
return;
}
totalRecords = (uint)MyQuery.Count();
newPageSize = (uint)cmbPageSizes.SelectedItem;
if (totalRecords == 0)
{
ItemsSource.Clear();
TotalPages = 1;
Page = 1;
StartRecord = 0;
EndRecord = 0;
}
else
{
TotalPages = (totalRecords / newPageSize) + (uint)((totalRecords % newPageSize == 0) ? 0 : 1);
}
uint newPage = 1;
switch (change)
{
case PageChanges.First:
if (Page == 1)
{
return;
}
break;
case PageChanges.Previous:
newPage = (Page - 1 > TotalPages) ? TotalPages : (Page - 1 < 1) ? 1 : Page - 1;
break;
case PageChanges.Current:
newPage = (Page > TotalPages) ? TotalPages : (Page < 1) ? 1 : Page;
break;
case PageChanges.Next:
newPage = (Page + 1 > TotalPages) ? TotalPages : Page + 1;
//(Page + 1) < 1 ? 1 :
break;
case PageChanges.Last:
if (Page == TotalPages)
{
return;
}
newPage = TotalPages;
break;
default:
break;
}
uint StartingIndex = (newPage - 1) * newPageSize;
StartRecord = StartingIndex + 1;
uint oldPage = Page;
RaisePreviewPageChange(Page, newPage);
Page = newPage;
TotalRecords = totalRecords;
ItemsSource.Clear();
IQueryable fetchData = MyQuery.Skip(Convert.ToInt32(StartingIndex)).Take(Convert.ToInt32(newPageSize));
var enumerator = fetchData.GetEnumerator();
while (enumerator.MoveNext())
{
ItemsSource.Add(enumerator.Current);
}
EndRecord = StartingIndex + Convert.ToUInt32(ItemsSource.Count);
RaisePageChanged(oldPage, Page);
}
private void Navigate(PageChanges change)
{
int totalRecords;
int newPageSize;
if (PageContract == null)
{
return;
}
totalRecords = PageContract.GetTotalCount();
newPageSize = (int)cmbPageSizes.SelectedItem;
if (totalRecords == 0)
{
ItemsSource.Clear();
TotalPages = 1;
Page = 1;
}
else
{
TotalPages = (totalRecords / newPageSize) + (int)((totalRecords % newPageSize == 0) ? 0 : 1);
}
int newPage = 1;
switch (change)
{
case PageChanges.First:
if (Page == 1)
{
return;
}
break;
case PageChanges.Previous:
newPage = (Page - 1 > TotalPages) ? TotalPages : (Page - 1 < 1) ? 1 : Page - 1;
break;
case PageChanges.Current:
newPage = (Page > TotalPages) ? TotalPages : (Page < 1) ? 1 : Page;
break;
case PageChanges.Next:
newPage = (Page + 1 > TotalPages) ? TotalPages : Page + 1;
//(Page + 1) < 1 ? 1 :
break;
case PageChanges.Last:
if (Page == TotalPages)
{
return;
}
newPage = TotalPages;
break;
default:
break;
}
var startingIndex = (newPage - 1) * newPageSize;
var oldPage = Page;
RaisePreviewPageChange(Page, newPage);
Page = newPage;
ItemsSource.Clear();
ICollection<object> fetchData = PageContract.GetRecordsBy(startingIndex, newPageSize, Filter);
foreach (object row in fetchData)
{
ItemsSource.Add(row);
}
RaisePageChanged(oldPage, Page);
}
private async Task NavigateAsync(PageChanges change)
{
if (this.PageContract == null)
{
return;
}
this.IsLoading = true;
var totalRecords = await this.PageContract.GetTotalCountAsync(this.Filter);
var newPageSize = (int)(this.CmbPageSizes.SelectedItem ?? 1);
this.PageSize = newPageSize;
if (totalRecords == 0)
{
this.ItemsSource.Clear();
this.TotalPages = 1;
this.Page = 1;
}
else
{
this.TotalPages = (totalRecords / newPageSize) + ((totalRecords % newPageSize == 0) ? 0 : 1);
}
int newPage = 1;
switch (change)
{
case PageChanges.First:
if (this.Page == 1)
{
this.IsLoading = false;
return;
}
break;
case PageChanges.Previous:
if (this.Page == 1)
{
this.IsLoading = false;
return;
}
newPage = (this.Page - 1 > this.TotalPages) ? this.TotalPages : (this.Page - 1 < 1) ? 1 : this.Page - 1;
break;
case PageChanges.Current:
newPage = (this.Page > this.TotalPages) ? this.TotalPages : (this.Page < 1) ? 1 : this.Page;
break;
case PageChanges.Next:
if (this.Page == this.TotalPages)
{
this.IsLoading = false;
return;
}
newPage = (this.Page + 1 > this.TotalPages) ? this.TotalPages : this.Page + 1;
break;
case PageChanges.Last:
if (this.Page == this.TotalPages)
{
this.IsLoading = false;
return;
}
newPage = this.TotalPages;
break;
}
var startingIndex = (newPage - 1) * newPageSize;
var oldPage = this.Page;
this.RaisePreviewPageChange(this.Page, newPage);
this.Page = newPage;
var pageControlContract = this.PageContract;
if (pageControlContract != null)
{
IEnumerable fetchData =
await pageControlContract.GetRecordsAsync(startingIndex, newPageSize, this.Filter);
this.ItemsSource.Clear();
foreach (object row in fetchData)
{
this.ItemsSource.Add(row);
}
}
this.RaisePageChanged(oldPage, this.Page);
this.IsLoading = false;
}
private void Navigate(PageChanges change)
{
if (PageContract == null)
{
return;
}
var totalRecords = PageContract.GetTotalCount();
var newPageSize = (uint) CmbPageSizes.SelectedItem;
if (totalRecords == 0)
{
ItemsSource.Clear();
TotalPages = 1;
Page = 1;
}
else
{
TotalPages = (totalRecords/newPageSize) + (uint) ((totalRecords%newPageSize == 0) ? 0 : 1);
}
uint newPage = 1;
switch (change)
{
case PageChanges.First:
if (Page == 1)
{
return;
}
break;
case PageChanges.Previous:
newPage = (Page - 1 > TotalPages) ? TotalPages : (Page - 1 < 1) ? 1 : Page - 1;
break;
case PageChanges.Current:
newPage = (Page > TotalPages) ? TotalPages : (Page < 1) ? 1 : Page;
break;
case PageChanges.Next:
newPage = (Page + 1 > TotalPages) ? TotalPages : Page + 1;
break;
case PageChanges.Last:
if (Page == TotalPages)
{
return;
}
newPage = TotalPages;
break;
default:
break;
}
var startingIndex = (newPage - 1)*newPageSize;
var oldPage = Page;
RaisePreviewPageChange(Page, newPage);
Page = newPage;
ItemsSource.Clear();
var fetchData = PageContract.FetchRange(startingIndex, newPageSize, FilterTag);
if (fetchData != null)
foreach (var row in fetchData)
{
ItemsSource.Add(row);
}
RaisePageChanged(oldPage, Page);
}