protected static async Task <string> ParseElementAsync(IParseManager parseManager, ListInfo listInfo, List <KeyValuePair <int, Channel> > channels)
{
var pageInfo = parseManager.PageInfo;
if (channels == null || channels.Count == 0)
{
return(string.Empty);
}
var builder = new StringBuilder();
if (listInfo.Layout == Model.Layout.None)
{
if (!string.IsNullOrEmpty(listInfo.HeaderTemplate))
{
builder.Append(listInfo.HeaderTemplate);
}
var isAlternative = false;
var isSeparator = false;
if (!string.IsNullOrEmpty(listInfo.AlternatingItemTemplate))
{
isAlternative = true;
}
if (!string.IsNullOrEmpty(listInfo.SeparatorTemplate))
{
isSeparator = true;
}
for (var i = 0; i < channels.Count; i++)
{
var channel = channels[i];
pageInfo.ChannelItems.Push(channel);
var templateString = isAlternative && i % 2 == 1 ? listInfo.AlternatingItemTemplate : listInfo.ItemTemplate;
var parsedString = await TemplateUtility.GetChannelsItemTemplateStringAsync(templateString,
listInfo.SelectedItems, listInfo.SelectedValues, string.Empty, parseManager, ParseType.Channel);
builder.Append(parsedString);
if (isSeparator && i != channels.Count - 1)
{
builder.Append(listInfo.SeparatorTemplate);
}
}
if (!string.IsNullOrEmpty(listInfo.FooterTemplate))
{
builder.Append(listInfo.FooterTemplate);
}
}
else
{
var isAlternative = !string.IsNullOrEmpty(listInfo.AlternatingItemTemplate);
var tableAttributes = listInfo.GetTableAttributes();
var cellAttributes = listInfo.GetCellAttributes();
using var table = new HtmlTable(builder, tableAttributes);
if (!string.IsNullOrEmpty(listInfo.HeaderTemplate))
{
table.StartHead();
using (var tHead = table.AddRow())
{
tHead.AddCell(listInfo.HeaderTemplate, cellAttributes);
}
table.EndHead();
}
table.StartBody();
var columns = listInfo.Columns <= 1 ? 1 : listInfo.Columns;
var itemIndex = 0;
while (true)
{
using var tr = table.AddRow();
for (var cell = 1; cell <= columns; cell++)
{
var cellHtml = string.Empty;
if (itemIndex < channels.Count)
{
var channel = channels[itemIndex];
pageInfo.ChannelItems.Push(channel);
var templateString = isAlternative && itemIndex % 2 == 1
? listInfo.AlternatingItemTemplate
: listInfo.ItemTemplate;
cellHtml = await TemplateUtility.GetChannelsItemTemplateStringAsync(templateString,
listInfo.SelectedItems, listInfo.SelectedValues, string.Empty, parseManager,
ParseType.Channel);
}
tr.AddCell(cellHtml, cellAttributes);
itemIndex++;
}
if (itemIndex >= channels.Count)
{
break;
}
}
table.EndBody();
if (!string.IsNullOrEmpty(listInfo.FooterTemplate))
{
table.StartFoot();
using (var tFoot = table.AddRow())
{
tFoot.AddCell(listInfo.FooterTemplate, cellAttributes);
}
table.EndFoot();
}
}
return(builder.ToString());
}