/// <summary>
/// Returns the first element within the document (using depth-first pre-order traversal
/// of the document's nodes) that matches the specified group of selectors.
/// </summary>
/// <param name="elements">The elements to take as source.</param>
/// <param name="selectors">A string containing one or more CSS selectors separated by commas.</param>
/// <returns>An element object.</returns>
public static IElement QuerySelector(this INodeList elements, String selectors)
{
var sg = CssParser.Default.ParseSelector(selectors);
Validate(sg);
return(elements.QuerySelector(sg));
}
/// <summary>
/// Returns the first element within this element (using depth-first pre-order traversal
/// of the document's nodes) that matches the specified group of selectors.
/// </summary>
/// <param name="selector">The group of selectors to use.</param>
/// <param name="nodelist">The elements to search within</param>
public static IElement Find(this INodeList nodelist, string selector)
{
if (nodelist is null)
{
throw new ArgumentNullException(nameof(nodelist));
}
return(nodelist.QuerySelector(selector));
}
/// <summary>
/// Returns the first element within the document (using depth-first pre-order traversal
/// of the document's nodes) that matches the specified group of selectors.
/// </summary>
/// <param name="elements">The elements to take as source.</param>
/// <param name="selectors">A string containing one or more CSS selectors separated by commas.</param>
/// <returns>An element object.</returns>
public static IElement QuerySelector(this INodeList elements, String selectors)
{
var sg = CssParser.ParseSelector(selectors);
if (sg == null)
{
throw new DomException(ErrorCode.Syntax);
}
return(elements.QuerySelector(sg));
}
public static IElement QuerySelector(this INodeList elements, string selectors, CssParser parser)
{
var selector = parser.ParseSelector(selectors);
if (selector == null)
{
throw new DomException(DomError.Syntax);
}
return(elements.QuerySelector(selector));
}
/// <summary>
/// Returns the first element within the document (using depth-first pre-order traversal
/// of the document's nodes) that matches the given selector.
/// </summary>
/// <param name="elements">The elements to take as source.</param>
/// <param name="selectors">A selector object.</param>
/// <returns>An element object.</returns>
public static T QuerySelector <T>(this INodeList elements, ISelector selectors)
where T : class, IElement
{
return(elements.QuerySelector(selectors) as T);
}
