/// <summary>
/// 从当前容器按照 CSS 选择器搜索符合要求的元素
/// </summary>
/// <param name="container">要搜索子代元素的容器</param>
/// <param name="expression">CSS 选择器</param>
/// <returns>搜索到的符合要求的元素</returns>
public static IEnumerable <IHtmlElement> Find(this IHtmlContainer container, string expression)
{
if (container == null)
{
throw new ArgumentNullException("container");
}
if (expression == null)
{
throw new ArgumentNullException("expression");
}
try
{
var selector = CssParser.Create(container, expression);
return(selector.Filter(container.Descendants()));
}
catch (Exception e)
{
if (e.Data != null && !e.Data.Contains("selector expression"))
{
e.Data["selector expression"] = expression;
}
throw;
}
}
/// <summary>
/// 创建 jQuery 对象
/// </summary>
/// <param name="selector">选择器</param>
/// <param name="scope">范畴限定</param>
public jQuery(string selector, IHtmlContainer scope)
{
_selectorExpression = selector;
_scope = scope;
_selector = CssParser.Create(scope, selector);
_elements = _selector.Filter(_scope.Descendants());
}
