/// <summary>
/// 尝试使用指定的 HTML 碎片替换此节点
/// </summary>
/// <param name="node">要被替换的节点</param>
/// <param name="fragment">替换节点的 HTML 碎片</param>
/// <returns>碎片置入后产生的节点集</returns>
/// <exception cref="System.InvalidOperationException">若节点和碎片不在同一文档</exception>
public static IEnumerable <IHtmlNode> ReplaceWith(this IHtmlNode node, IHtmlFragment fragment)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
if (fragment == null)
{
throw new ArgumentNullException("fragment");
}
if (!object.Equals(fragment.Document, node.Document))
{
throw new InvalidOperationException();
}
var container = node.Container;
lock ( container )
{
int index = node.NodesIndexOfSelf();
Remove(node);
return(fragment.Into(container, index));
}
}
/// <summary>
/// 添加一个文档碎片
/// </summary>
/// <param name="container">要添加碎片的容器</param>
/// <param name="index">要添加的位置</param>
/// <param name="fragment">要添加的碎片</param>
/// <returns></returns>
public static IEnumerable <IHtmlNode> AddFragment(this IHtmlContainer container, int index, IHtmlFragment fragment)
{
if (container == null)
{
throw new ArgumentNullException("container");
}
if (fragment == null)
{
throw new ArgumentNullException("fragment");
}
return(fragment.Into(container, index));
}
public IHtmlNode Into(IHtmlContainer container, int index)
{
return(_fragment.Into(container, index).First());
}