public IEnumerable <HtmlElement> GetElement(IEnumerable <HtmlElement> source, string element)
{
if (source == null)
{
throw new ArgumentException(nameof(HtmlElement));
}
if (!_htmlConfig.IsHtmlElement(element))
{
throw new ArgumentException("element is invalid");
}
var allElements = HtmlHelpers.GetAllElements(source);
return(allElements.Where(e => e.ElementName == element));
}
public Maybe <HtmlElement> GetElementById(IEnumerable <HtmlElement> source, string id)
{
if (source == null)
{
throw new ArgumentException(nameof(HtmlElement));
}
var eleList = HtmlHelpers.GetAllElements(source);
foreach (var element in eleList)
{
if (!element.Attributes.ContainsKey("id"))
{
continue;
}
if (element.Attributes["id"].Contains(id))
{
return(new Maybe <HtmlElement>(element));
}
}
return(new Maybe <HtmlElement>());
}
public IEnumerable <HtmlElement> GetElementByClass(IEnumerable <HtmlElement> source, string className)
{
if (source == null)
{
throw new ArgumentException(nameof(HtmlElement));
}
var eleList = HtmlHelpers.GetAllElements(source);
var selectedElements = new List <HtmlElement>();
foreach (var element in eleList)
{
if (!element.Attributes.ContainsKey("class"))
{
continue;
}
if (element.Attributes["class"].Contains(className))
{
selectedElements.Add(element);
}
}
return(selectedElements);
}
