/// <summary>建立子控件</summary>
protected override void CreateChildControls()
{
// 当且仅当总记录数TotalRowCount准备好之后才创建子控件
if (TotalRowCount <= 0)
{
return;
}
Controls.Clear();
IPagedDataSource pagedDataSource = this;
PagerSettings pagerSettings = PagerSettings;
if (PagerTemplate != null)
{
// 分页模版输出
DataPagerItem item = new DataPagerItem();
PagerTemplate.InstantiateIn(item);
Controls.Add(item);
// 必须在加入Controls后再绑定，否则会因为没有关联Page而失败
// 每次完成创建子控件后马上绑定
item.DataItem = this;
item.DataBind();
item.DataItem = null;
}
else
{
// 分页控件输出
Table child = new Table();
TableRow row2 = new TableRow();
switch (pagerSettings.Mode)
{
case PagerButtons.NextPrevious:
CreateNextPrevPager(row2, pagedDataSource, false);
break;
case PagerButtons.Numeric:
CreateNumericPager(row2, pagedDataSource, false);
break;
case PagerButtons.NextPreviousFirstLast:
CreateNextPrevPager(row2, pagedDataSource, true);
break;
case PagerButtons.NumericFirstLast:
CreateNumericPager(row2, pagedDataSource, true);
break;
}
child.Rows.Add(row2);
Controls.Add(child);
}
}
public virtual IPagedDataSource Create(ExportDataQuery dataQuery)
{
IPagedDataSource result = null;
if (dataQuery is CustomerReviewExportDataQuery customerReviewExportDataQuery)
{
result = new CustomerReviewExportPagedDataSource(_searchService, _customerReviewService, _itemService, _blobUrlResolver, customerReviewExportDataQuery);
}
return(result ?? throw new ArgumentException($"Unsupported export query type: {dataQuery.GetType().Name}"));
}
public virtual IPagedDataSource Create(ExportDataQuery dataQuery)
{
IPagedDataSource result = null;
if (dataQuery is PriceExportDataQuery priceExportDataQuery)
{
result = new PriceExportPagedDataSource(_searchService, _pricingService, _itemService, priceExportDataQuery);
}
else if (dataQuery is PricelistAssignmentExportDataQuery pricelistAssignmentExportDataQuery)
{
result = new PricelistAssignmentExportPagedDataSource(_searchService, _pricingService, _catalogService, pricelistAssignmentExportDataQuery);
}
else if (dataQuery is PricelistExportDataQuery pricelistExportDataQuery)
{
result = new PricelistExportPagedDataSource(_searchService, _pricingService, pricelistExportDataQuery);
}
return(result ?? throw new ArgumentException($"Unsupported export query type: {dataQuery.GetType().Name}"));
}
public Task MultipleDataSources_Paging_Valid(int skip, int take, string expectedResult)
{
// Arrange
var dataSources = new IPagedDataSource[] {
new TestPagedDataSource(CreatedSearchServiceMock(new string[] { "1", "2", "3" }).Object, new TestExportDataQuery()),
new TestPagedDataSource(CreatedSearchServiceMock(new string[] { "4", "5", "6" }).Object, new TestExportDataQuery()),
new TestPagedDataSource(CreatedSearchServiceMock(new string[] { "7" }).Object, new TestExportDataQuery()),
new TestPagedDataSource(CreatedSearchServiceMock(new string[] { "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20" }).Object, new TestExportDataQuery()),
new TestPagedDataSource(CreatedSearchServiceMock(new string[] { "21", "22" }).Object, new TestExportDataQuery()),
};
// Act
var items = dataSources.GetItems(skip, take);
var result = string.Join(',', items.Select(x => x.Id));
// Assert
Assert.Equal(expectedResult, result);
return(Task.CompletedTask);
}
public virtual IPagedDataSource Create(ExportDataQuery dataQuery)
{
IPagedDataSource result = null;
if (dataQuery is PropertyExportDataQuery propertyExportQuery)
{
result = new PropertyExportPagedDataSource(_propertyService, propertyExportQuery);
}
else if (dataQuery is PropertyDictionaryItemExportDataQuery propDictExportQuery)
{
result = new PropertyDictionaryItemExportPagedDataSource(_propertyDictionaryItemSearchService, propDictExportQuery);
}
else if (dataQuery is ProductFullExportDataQuery productFullExportQuery)
{
result = new ProductExportPagedDataSource(_blobStorageProvider, _itemService, _catalogSearchService, _blobUrlResolver, productFullExportQuery.ToProductExportDataQuery());
}
else if (dataQuery is CategoryExportDataQuery categoryExportQuery)
{
result = new CategoryExportPagedDataSource(_catalogSearchService, _categoryService, _blobStorageProvider, categoryExportQuery);
}
else if (dataQuery is CatalogExportDataQuery catalogExportQuery)
{
result = new CatalogExportPagedDataSource(_catalogSearchService, catalogExportQuery);
}
else if (dataQuery is ProductExportDataQuery productExportQuery)
{
result = new ProductExportPagedDataSource(_blobStorageProvider, _itemService, _catalogSearchService, _blobUrlResolver, productExportQuery);
}
else if (dataQuery is CatalogFullExportDataQuery catalogFullExportDataQuery)
{
result = new CatalogFullExportPagedDataSource(this, catalogFullExportDataQuery);
}
if (result == null)
{
throw new ArgumentException($"Unsupported export query type: {dataQuery.GetType().Name}");
}
return(result);
}
private void CreateNumericPager(TableRow row, IPagedDataSource pagedDataSource, bool addFirstLastPageButtons)
{
LinkButton button;
PagerSettings pagerSettings = PagerSettings;
int pageCount = pagedDataSource.PageCount;
int num2 = pagedDataSource.PageIndex + 1;
int pageButtonCount = pagerSettings.PageButtonCount;
int num4 = pageButtonCount;
Int32 FirstDisplayedPageIndex = 0;
int num5 = FirstDisplayedPageIndex + 1;
if (pageCount < num4)
{
num4 = pageCount;
}
int num6 = 1;
int pageIndex = num4;
if (num2 > pageIndex)
{
int num8 = pagedDataSource.PageIndex / pageButtonCount;
bool flag = ((num2 - num5) >= 0) && ((num2 - num5) < pageButtonCount);
if ((num5 > 0) && flag)
{
num6 = num5;
}
else
{
num6 = (num8 * pageButtonCount) + 1;
}
pageIndex = (num6 + pageButtonCount) - 1;
if (pageIndex > pageCount)
{
pageIndex = pageCount;
}
if (((pageIndex - num6) + 1) < pageButtonCount)
{
num6 = Math.Max(1, (pageIndex - pageButtonCount) + 1);
}
FirstDisplayedPageIndex = num6 - 1;
}
if ((addFirstLastPageButtons && (num2 != 1)) && (num6 != 1))
{
IButtonControl control;
TableCell cell = new TableCell();
row.Cells.Add(cell);
string firstPageImageUrl = pagerSettings.FirstPageImageUrl;
if (firstPageImageUrl.Length > 0)
{
control = new DataControlImageButton(this);
((DataControlImageButton)control).ImageUrl = firstPageImageUrl;
((DataControlImageButton)control).AlternateText = HttpUtility.HtmlDecode(pagerSettings.FirstPageText);
((DataControlImageButton)control).EnableCallback(BuildCallbackArgument(0));
}
else
{
control = new DataControlPagerLinkButton(this);
((DataControlPagerLinkButton)control).Text = pagerSettings.FirstPageText;
((DataControlPagerLinkButton)control).EnableCallback(BuildCallbackArgument(0));
}
control.CommandName = "Page";
control.CommandArgument = "First";
cell.Controls.Add((Control)control);
}
if (num6 != 1)
{
TableCell cell2 = new TableCell();
row.Cells.Add(cell2);
button = new DataControlPagerLinkButton(this);
button.Text = "...";
button.CommandName = "Page";
button.CommandArgument = (num6 - 1).ToString(NumberFormatInfo.InvariantInfo);
((DataControlPagerLinkButton)button).EnableCallback(BuildCallbackArgument(num6 - 2));
cell2.Controls.Add(button);
}
for (int i = num6; i <= pageIndex; i++)
{
TableCell cell3 = new TableCell();
row.Cells.Add(cell3);
string str2 = i.ToString(NumberFormatInfo.InvariantInfo);
if (i == num2)
{
Label child = new Label();
child.Text = str2;
cell3.Controls.Add(child);
}
else
{
button = new DataControlPagerLinkButton(this);
button.Text = str2;
button.CommandName = "Page";
button.CommandArgument = str2;
((DataControlPagerLinkButton)button).EnableCallback(BuildCallbackArgument(i - 1));
cell3.Controls.Add(button);
}
}
if (pageCount > pageIndex)
{
TableCell cell4 = new TableCell();
row.Cells.Add(cell4);
button = new DataControlPagerLinkButton(this);
button.Text = "...";
button.CommandName = "Page";
button.CommandArgument = (pageIndex + 1).ToString(NumberFormatInfo.InvariantInfo);
((DataControlPagerLinkButton)button).EnableCallback(BuildCallbackArgument(pageIndex));
cell4.Controls.Add(button);
}
bool flag2 = pageIndex == pageCount;
if ((addFirstLastPageButtons && (num2 != pageCount)) && !flag2)
{
IButtonControl control2;
TableCell cell5 = new TableCell();
row.Cells.Add(cell5);
string lastPageImageUrl = pagerSettings.LastPageImageUrl;
if (lastPageImageUrl.Length > 0)
{
control2 = new DataControlImageButton(this);
((DataControlImageButton)control2).ImageUrl = lastPageImageUrl;
((DataControlImageButton)control2).AlternateText = HttpUtility.HtmlDecode(pagerSettings.LastPageText);
((DataControlImageButton)control2).EnableCallback(BuildCallbackArgument(pagedDataSource.PageCount - 1));
}
else
{
control2 = new DataControlPagerLinkButton(this);
((DataControlPagerLinkButton)control2).Text = pagerSettings.LastPageText;
((DataControlPagerLinkButton)control2).EnableCallback(BuildCallbackArgument(pagedDataSource.PageCount - 1));
}
control2.CommandName = "Page";
control2.CommandArgument = "Last";
cell5.Controls.Add((Control)control2);
}
}
///// <summary>
///// 已重写。保证创建子控件
///// </summary>
//public override ControlCollection Controls
//{
// get
// {
// this.EnsureChildControls();
// return base.Controls;
// }
//}
#endregion
#region 四种分页
private void CreateNextPrevPager(TableRow row, IPagedDataSource pagedDataSource, bool addFirstLastPageButtons)
{
PagerSettings pagerSettings = PagerSettings;
string previousPageImageUrl = pagerSettings.PreviousPageImageUrl;
string nextPageImageUrl = pagerSettings.NextPageImageUrl;
bool isFirstPage = pagedDataSource.IsFirstPage;
bool isLastPage = pagedDataSource.IsLastPage;
if (addFirstLastPageButtons && !isFirstPage)
{
IButtonControl control;
TableCell cell = new TableCell();
row.Cells.Add(cell);
string firstPageImageUrl = pagerSettings.FirstPageImageUrl;
if (firstPageImageUrl.Length > 0)
{
control = new DataControlImageButton(this);
((DataControlImageButton)control).ImageUrl = firstPageImageUrl;
((DataControlImageButton)control).AlternateText = HttpUtility.HtmlDecode(pagerSettings.FirstPageText);
((DataControlImageButton)control).EnableCallback(BuildCallbackArgument(0));
}
else
{
control = new DataControlPagerLinkButton(this);
((DataControlPagerLinkButton)control).Text = pagerSettings.FirstPageText;
((DataControlPagerLinkButton)control).EnableCallback(BuildCallbackArgument(0));
}
control.CommandName = "Page";
control.CommandArgument = "First";
cell.Controls.Add((Control)control);
}
if (!isFirstPage)
{
IButtonControl control2;
TableCell cell2 = new TableCell();
row.Cells.Add(cell2);
if (previousPageImageUrl.Length > 0)
{
control2 = new DataControlImageButton(this);
((DataControlImageButton)control2).ImageUrl = previousPageImageUrl;
((DataControlImageButton)control2).AlternateText = HttpUtility.HtmlDecode(pagerSettings.PreviousPageText);
((DataControlImageButton)control2).EnableCallback(BuildCallbackArgument(PageIndex - 1));
}
else
{
control2 = new DataControlPagerLinkButton(this);
((DataControlPagerLinkButton)control2).Text = pagerSettings.PreviousPageText;
((DataControlPagerLinkButton)control2).EnableCallback(BuildCallbackArgument(PageIndex - 1));
}
control2.CommandName = "Page";
control2.CommandArgument = "Prev";
cell2.Controls.Add((Control)control2);
}
if (!isLastPage)
{
IButtonControl control3;
TableCell cell3 = new TableCell();
row.Cells.Add(cell3);
if (nextPageImageUrl.Length > 0)
{
control3 = new DataControlImageButton(this);
((DataControlImageButton)control3).ImageUrl = nextPageImageUrl;
((DataControlImageButton)control3).AlternateText = HttpUtility.HtmlDecode(pagerSettings.NextPageText);
((DataControlImageButton)control3).EnableCallback(BuildCallbackArgument(PageIndex + 1));
}
else
{
control3 = new DataControlPagerLinkButton(this);
((DataControlPagerLinkButton)control3).Text = pagerSettings.NextPageText;
((DataControlPagerLinkButton)control3).EnableCallback(BuildCallbackArgument(PageIndex + 1));
}
control3.CommandName = "Page";
control3.CommandArgument = "Next";
cell3.Controls.Add((Control)control3);
}
if (addFirstLastPageButtons && !isLastPage)
{
IButtonControl control4;
TableCell cell4 = new TableCell();
row.Cells.Add(cell4);
string lastPageImageUrl = pagerSettings.LastPageImageUrl;
if (lastPageImageUrl.Length > 0)
{
control4 = new DataControlImageButton(this);
((DataControlImageButton)control4).ImageUrl = lastPageImageUrl;
((DataControlImageButton)control4).AlternateText = HttpUtility.HtmlDecode(pagerSettings.LastPageText);
((DataControlImageButton)control4).EnableCallback(BuildCallbackArgument(pagedDataSource.PageCount - 1));
}
else
{
control4 = new DataControlPagerLinkButton(this);
((DataControlPagerLinkButton)control4).Text = pagerSettings.LastPageText;
((DataControlPagerLinkButton)control4).EnableCallback(BuildCallbackArgument(pagedDataSource.PageCount - 1));
}
control4.CommandName = "Page";
control4.CommandArgument = "Last";
cell4.Controls.Add((Control)control4);
}
}
private void CreateNumericPager(TableRow row, IPagedDataSource pagedDataSource, bool addFirstLastPageButtons)
{
LinkButton button;
PagerSettings pagerSettings = PagerSettings;
int pageCount = pagedDataSource.PageCount;
int num2 = pagedDataSource.PageIndex + 1;
int pageButtonCount = pagerSettings.PageButtonCount;
int num4 = pageButtonCount;
Int32 FirstDisplayedPageIndex = 0;
int num5 = FirstDisplayedPageIndex + 1;
if (pageCount < num4)
{
num4 = pageCount;
}
int num6 = 1;
int pageIndex = num4;
if (num2 > pageIndex)
{
int num8 = pagedDataSource.PageIndex / pageButtonCount;
bool flag = ((num2 - num5) >= 0) && ((num2 - num5) < pageButtonCount);
if ((num5 > 0) && flag)
{
num6 = num5;
}
else
{
num6 = (num8 * pageButtonCount) + 1;
}
pageIndex = (num6 + pageButtonCount) - 1;
if (pageIndex > pageCount)
{
pageIndex = pageCount;
}
if (((pageIndex - num6) + 1) < pageButtonCount)
{
num6 = Math.Max(1, (pageIndex - pageButtonCount) + 1);
}
FirstDisplayedPageIndex = num6 - 1;
}
if ((addFirstLastPageButtons && (num2 != 1)) && (num6 != 1))
{
IButtonControl control;
TableCell cell = new TableCell();
row.Cells.Add(cell);
string firstPageImageUrl = pagerSettings.FirstPageImageUrl;
if (firstPageImageUrl.Length > 0)
{
control = new DataControlImageButton(this);
((DataControlImageButton)control).ImageUrl = firstPageImageUrl;
((DataControlImageButton)control).AlternateText = HttpUtility.HtmlDecode(pagerSettings.FirstPageText);
((DataControlImageButton)control).EnableCallback(BuildCallbackArgument(0));
}
else
{
control = new DataControlPagerLinkButton(this);
((DataControlPagerLinkButton)control).Text = pagerSettings.FirstPageText;
((DataControlPagerLinkButton)control).EnableCallback(BuildCallbackArgument(0));
}
control.CommandName = "Page";
control.CommandArgument = "First";
cell.Controls.Add((Control)control);
}
if (num6 != 1)
{
TableCell cell2 = new TableCell();
row.Cells.Add(cell2);
button = new DataControlPagerLinkButton(this);
button.Text = "...";
button.CommandName = "Page";
button.CommandArgument = (num6 - 1).ToString(NumberFormatInfo.InvariantInfo);
((DataControlPagerLinkButton)button).EnableCallback(BuildCallbackArgument(num6 - 2));
cell2.Controls.Add(button);
}
for (int i = num6; i <= pageIndex; i++)
{
TableCell cell3 = new TableCell();
row.Cells.Add(cell3);
string str2 = i.ToString(NumberFormatInfo.InvariantInfo);
if (i == num2)
{
Label child = new Label();
child.Text = str2;
cell3.Controls.Add(child);
}
else
{
button = new DataControlPagerLinkButton(this);
button.Text = str2;
button.CommandName = "Page";
button.CommandArgument = str2;
((DataControlPagerLinkButton)button).EnableCallback(BuildCallbackArgument(i - 1));
cell3.Controls.Add(button);
}
}
if (pageCount > pageIndex)
{
TableCell cell4 = new TableCell();
row.Cells.Add(cell4);
button = new DataControlPagerLinkButton(this);
button.Text = "...";
button.CommandName = "Page";
button.CommandArgument = (pageIndex + 1).ToString(NumberFormatInfo.InvariantInfo);
((DataControlPagerLinkButton)button).EnableCallback(BuildCallbackArgument(pageIndex));
cell4.Controls.Add(button);
}
bool flag2 = pageIndex == pageCount;
if ((addFirstLastPageButtons && (num2 != pageCount)) && !flag2)
{
IButtonControl control2;
TableCell cell5 = new TableCell();
row.Cells.Add(cell5);
string lastPageImageUrl = pagerSettings.LastPageImageUrl;
if (lastPageImageUrl.Length > 0)
{
control2 = new DataControlImageButton(this);
((DataControlImageButton)control2).ImageUrl = lastPageImageUrl;
((DataControlImageButton)control2).AlternateText = HttpUtility.HtmlDecode(pagerSettings.LastPageText);
((DataControlImageButton)control2).EnableCallback(BuildCallbackArgument(pagedDataSource.PageCount - 1));
}
else
{
control2 = new DataControlPagerLinkButton(this);
((DataControlPagerLinkButton)control2).Text = pagerSettings.LastPageText;
((DataControlPagerLinkButton)control2).EnableCallback(BuildCallbackArgument(pagedDataSource.PageCount - 1));
}
control2.CommandName = "Page";
control2.CommandArgument = "Last";
cell5.Controls.Add((Control)control2);
}
}
///// <summary>
///// 已重写。保证创建子控件
///// </summary>
//public override ControlCollection Controls
//{
// get
// {
// this.EnsureChildControls();
// return base.Controls;
// }
//}
#endregion
#region 四种分页
private void CreateNextPrevPager(TableRow row, IPagedDataSource pagedDataSource, bool addFirstLastPageButtons)
{
PagerSettings pagerSettings = PagerSettings;
string previousPageImageUrl = pagerSettings.PreviousPageImageUrl;
string nextPageImageUrl = pagerSettings.NextPageImageUrl;
bool isFirstPage = pagedDataSource.IsFirstPage;
bool isLastPage = pagedDataSource.IsLastPage;
if (addFirstLastPageButtons && !isFirstPage)
{
IButtonControl control;
TableCell cell = new TableCell();
row.Cells.Add(cell);
string firstPageImageUrl = pagerSettings.FirstPageImageUrl;
if (firstPageImageUrl.Length > 0)
{
control = new DataControlImageButton(this);
((DataControlImageButton)control).ImageUrl = firstPageImageUrl;
((DataControlImageButton)control).AlternateText = HttpUtility.HtmlDecode(pagerSettings.FirstPageText);
((DataControlImageButton)control).EnableCallback(BuildCallbackArgument(0));
}
else
{
control = new DataControlPagerLinkButton(this);
((DataControlPagerLinkButton)control).Text = pagerSettings.FirstPageText;
((DataControlPagerLinkButton)control).EnableCallback(BuildCallbackArgument(0));
}
control.CommandName = "Page";
control.CommandArgument = "First";
cell.Controls.Add((Control)control);
}
if (!isFirstPage)
{
IButtonControl control2;
TableCell cell2 = new TableCell();
row.Cells.Add(cell2);
if (previousPageImageUrl.Length > 0)
{
control2 = new DataControlImageButton(this);
((DataControlImageButton)control2).ImageUrl = previousPageImageUrl;
((DataControlImageButton)control2).AlternateText = HttpUtility.HtmlDecode(pagerSettings.PreviousPageText);
((DataControlImageButton)control2).EnableCallback(BuildCallbackArgument(PageIndex - 1));
}
else
{
control2 = new DataControlPagerLinkButton(this);
((DataControlPagerLinkButton)control2).Text = pagerSettings.PreviousPageText;
((DataControlPagerLinkButton)control2).EnableCallback(BuildCallbackArgument(PageIndex - 1));
}
control2.CommandName = "Page";
control2.CommandArgument = "Prev";
cell2.Controls.Add((Control)control2);
}
if (!isLastPage)
{
IButtonControl control3;
TableCell cell3 = new TableCell();
row.Cells.Add(cell3);
if (nextPageImageUrl.Length > 0)
{
control3 = new DataControlImageButton(this);
((DataControlImageButton)control3).ImageUrl = nextPageImageUrl;
((DataControlImageButton)control3).AlternateText = HttpUtility.HtmlDecode(pagerSettings.NextPageText);
((DataControlImageButton)control3).EnableCallback(BuildCallbackArgument(PageIndex + 1));
}
else
{
control3 = new DataControlPagerLinkButton(this);
((DataControlPagerLinkButton)control3).Text = pagerSettings.NextPageText;
((DataControlPagerLinkButton)control3).EnableCallback(BuildCallbackArgument(PageIndex + 1));
}
control3.CommandName = "Page";
control3.CommandArgument = "Next";
cell3.Controls.Add((Control)control3);
}
if (addFirstLastPageButtons && !isLastPage)
{
IButtonControl control4;
TableCell cell4 = new TableCell();
row.Cells.Add(cell4);
string lastPageImageUrl = pagerSettings.LastPageImageUrl;
if (lastPageImageUrl.Length > 0)
{
control4 = new DataControlImageButton(this);
((DataControlImageButton)control4).ImageUrl = lastPageImageUrl;
((DataControlImageButton)control4).AlternateText = HttpUtility.HtmlDecode(pagerSettings.LastPageText);
((DataControlImageButton)control4).EnableCallback(BuildCallbackArgument(pagedDataSource.PageCount - 1));
}
else
{
control4 = new DataControlPagerLinkButton(this);
((DataControlPagerLinkButton)control4).Text = pagerSettings.LastPageText;
((DataControlPagerLinkButton)control4).EnableCallback(BuildCallbackArgument(pagedDataSource.PageCount - 1));
}
control4.CommandName = "Page";
control4.CommandArgument = "Last";
cell4.Controls.Add((Control)control4);
}
}
/// <summary>
/// Initializes <see cref="Paginator{T}"/> instance.
/// </summary>
/// <param name="dataSource">
/// Paged data source.
/// </param>
/// <param name="pageSize">
/// Page size.
/// </param>
public Paginator(IPagedDataSource <T> dataSource, int pageSize)
{
this.dataSource = dataSource;
this.pageSize = pageSize;
pages = new Dictionary <int, IReadOnlyList <T> >();
}
public ServerSidePagedCollectionView(IPagedDataSource <T> pagedDataSource)
{
_pagedDataSource = pagedDataSource;
}
