void ControlTreeDataLoader.LoadData()
{
using (MiniProfiler.Current.Step("EWF - Load table data")) {
FormState.ExecuteWithDataModificationsAndDefaultAction(
dataModifications,
() => {
if (hideIfEmpty && itemGroups.All(itemGroup => !itemGroup.Items.Any()))
{
Visible = false;
return;
}
SetUpTableAndCaption(this, style, classes, caption, subCaption);
var visibleItemGroupsAndItems = new List <Tuple <EwfTableItemGroup, IReadOnlyCollection <EwfTableItem> > >();
foreach (var itemGroup in itemGroups)
{
var visibleItems = itemGroup.Items.Take(CurrentItemLimit - visibleItemGroupsAndItems.Sum(i => i.Item2.Count)).Select(i => i());
visibleItemGroupsAndItems.Add(Tuple.Create <EwfTableItemGroup, IReadOnlyCollection <EwfTableItem> >(itemGroup, visibleItems.ToImmutableArray()));
if (visibleItemGroupsAndItems.Sum(i => i.Item2.Count) == CurrentItemLimit)
{
break;
}
}
var fields = GetFields(specifiedFields, headItems.AsReadOnly(), visibleItemGroupsAndItems.SelectMany(i => i.Item2));
if (!fields.Any())
{
fields = new EwfTableField().ToCollection();
}
addColumnSpecifications(fields);
var allVisibleItems = new List <EwfTableItem>();
var itemLimitingUpdateRegionSet = new UpdateRegionSet();
var headRows =
buildRows(
getItemLimitingAndGeneralActionsItem(fields.Count, itemLimitingUpdateRegionSet).Concat(getItemActionsItem(fields.Count)).ToList(),
Enumerable.Repeat(new EwfTableField(), fields.Count).ToArray(),
null,
false,
null,
null,
allVisibleItems).Concat(buildRows(headItems, fields, null, true, null, null, allVisibleItems)).ToArray();
if (headRows.Any())
{
Controls.Add(new WebControl(HtmlTextWriterTag.Thead).AddControlsReturnThis(headRows));
}
var bodyRowGroupsAndRows = new List <Tuple <WebControl, ImmutableArray <Control> > >();
var updateRegionSetListsAndStaticRowGroupCounts = new List <Tuple <IReadOnlyCollection <UpdateRegionSet>, int> >();
for (var visibleGroupIndex = 0; visibleGroupIndex < visibleItemGroupsAndItems.Count; visibleGroupIndex += 1)
{
var groupAndItems = visibleItemGroupsAndItems[visibleGroupIndex];
var useContrastForFirstRow = visibleItemGroupsAndItems.Where((group, i) => i < visibleGroupIndex).Sum(i => i.Item2.Count) % 2 == 1;
var groupBodyRows = buildRows(groupAndItems.Item2, fields, useContrastForFirstRow, false, null, null, allVisibleItems).ToImmutableArray();
var rowGroup =
new WebControl(HtmlTextWriterTag.Tbody).AddControlsReturnThis(
buildRows(
groupAndItems.Item1.GetHeadItems(fields.Count),
Enumerable.Repeat(new EwfTableField(), fields.Count).ToArray(),
null,
true,
null,
null,
allVisibleItems).Concat(new NamingPlaceholder(groupBodyRows).ToCollection()));
bodyRowGroupsAndRows.Add(Tuple.Create(rowGroup, groupBodyRows));
var cachedVisibleGroupIndex = visibleGroupIndex;
EwfPage.Instance.AddUpdateRegionLinker(
new LegacyUpdateRegionLinker(
rowGroup,
"tail",
from region in groupAndItems.Item1.RemainingData.Value.TailUpdateRegions
let staticRowCount = itemGroups[cachedVisibleGroupIndex].Items.Count - region.UpdatingItemCount
select new LegacyPreModificationUpdateRegion(region.Sets, () => groupBodyRows.Skip(staticRowCount), staticRowCount.ToString),
arg => groupBodyRows.Skip(int.Parse(arg))));
// If item limiting is enabled, include all subsequent item groups in tail update regions since any number of items could be appended.
if (defaultItemLimit != DataRowLimit.Unlimited)
{
updateRegionSetListsAndStaticRowGroupCounts.Add(
Tuple.Create <IReadOnlyCollection <UpdateRegionSet>, int>(
groupAndItems.Item1.RemainingData.Value.TailUpdateRegions.SelectMany(i => i.Sets).ToImmutableArray(),
visibleGroupIndex + 1));
}
}
Controls.Add(new NamingPlaceholder(bodyRowGroupsAndRows.Select(i => i.Item1)));
if (defaultItemLimit != DataRowLimit.Unlimited)
{
var oldItemLimit = CurrentItemLimit;
var lowerItemLimit = new Lazy <int>(() => Math.Min(oldItemLimit, CurrentItemLimit));
var itemLimitingTailUpdateRegionControlGetter = new Func <int, IEnumerable <Control> >(
staticItemCount => {
var rowCount = 0;
for (var groupIndex = 0; groupIndex < bodyRowGroupsAndRows.Count; groupIndex += 1)
{
var rows = bodyRowGroupsAndRows[groupIndex].Item2;
rowCount += rows.Length;
if (rowCount < staticItemCount)
{
continue;
}
return(rows.Skip(rows.Length - (rowCount - staticItemCount)).Concat(bodyRowGroupsAndRows.Skip(groupIndex + 1).Select(i => i.Item1)));
}
return(ImmutableArray <Control> .Empty);
});
EwfPage.Instance.AddUpdateRegionLinker(
new LegacyUpdateRegionLinker(
this,
"itemLimitingTail",
new LegacyPreModificationUpdateRegion(
itemLimitingUpdateRegionSet.ToCollection(),
() => itemLimitingTailUpdateRegionControlGetter(lowerItemLimit.Value),
() => lowerItemLimit.Value.ToString()).ToCollection(),
arg => itemLimitingTailUpdateRegionControlGetter(int.Parse(arg))));
}
EwfPage.Instance.AddUpdateRegionLinker(
new LegacyUpdateRegionLinker(
this,
"tail",
from region in
tailUpdateRegions.Select(i => new { sets = i.Sets, staticRowGroupCount = itemGroups.Count - i.UpdatingItemCount })
.Concat(updateRegionSetListsAndStaticRowGroupCounts.Select(i => new { sets = i.Item1, staticRowGroupCount = i.Item2 }))
select
new LegacyPreModificationUpdateRegion(
region.sets,
() => bodyRowGroupsAndRows.Skip(region.staticRowGroupCount).Select(i => i.Item1),
region.staticRowGroupCount.ToString),
arg => bodyRowGroupsAndRows.Skip(int.Parse(arg)).Select(i => i.Item1)));
var itemCount = itemGroups.Sum(i => i.Items.Count);
var itemLimitingRowGroup = new List <Control>();
if (CurrentItemLimit < itemCount)
{
var nextLimit = EnumTools.GetValues <DataRowLimit>().First(i => i > (DataRowLimit)CurrentItemLimit);
var itemIncrementCount = Math.Min((int)nextLimit, itemCount) - CurrentItemLimit;
var button = new PostBackButton(
new TextActionControlStyle("Show " + itemIncrementCount + " more item" + (itemIncrementCount != 1 ? "s" : "")),
usesSubmitBehavior: false,
postBack:
PostBack.CreateIntermediate(
itemLimitingUpdateRegionSet.ToCollection(),
id: PostBack.GetCompositeId(postBackIdBase, "showMore"),
firstModificationMethod: () => EwfPage.Instance.PageState.SetValue(this, itemLimitPageStateKey, (int)nextLimit)));
var item = new EwfTableItem(button.ToCell(new TableCellSetup(fieldSpan: fields.Count)));
var useContrast = visibleItemGroupsAndItems.Sum(i => i.Item2.Count) % 2 == 1;
itemLimitingRowGroup.Add(
new WebControl(HtmlTextWriterTag.Tbody).AddControlsReturnThis(
buildRows(
item.ToCollection().ToList(),
Enumerable.Repeat(new EwfTableField(), fields.Count).ToArray(),
useContrast,
false,
null,
null,
allVisibleItems)));
}
Controls.Add(
new NamingPlaceholder(
itemLimitingRowGroup,
updateRegionSets:
itemLimitingUpdateRegionSet.ToCollection()
.Concat(
itemGroups.SelectMany(i => i.RemainingData.Value.TailUpdateRegions).ToImmutableArray().Concat(tailUpdateRegions).SelectMany(i => i.Sets))));
// Assert that every visible item in the table has the same number of cells and store a data structure for below.
var cellPlaceholderListsForItems = TableOps.BuildCellPlaceholderListsForItems(allVisibleItems, fields.Count);
if (!disableEmptyFieldDetection)
{
AssertAtLeastOneCellPerField(fields, cellPlaceholderListsForItems);
}
});
}
}
/// <summary>
/// Adds an item to the table. Does not defer creation of the item. Do not use this in tables that use item limiting.
/// </summary>
public void AddItem(EwfTableItem item)
{
AddItem(() => item);
}
