public void RemoveElementsByTagId(_ELEMENT_TAG_ID tagId, bool onlyIfNoAttributes)
{
if (tagId == _ELEMENT_TAG_ID.TAGID_NULL)
{
return;
}
// Remove the tagId up the parent chain
IHTMLElement currentElement = ParentElement();
while (currentElement != null)
{
if (MarkupServices.GetElementTagId(currentElement) == tagId &&
(!onlyIfNoAttributes || !HTMLElementHelper.HasMeaningfulAttributes(currentElement)))
{
try
{
MarkupServices.RemoveElement(currentElement);
}
catch (COMException e)
{
Trace.Fail(String.Format("Failed to remove element ({0}) with error: {1}",
currentElement.outerHTML, // {0}
e // {1}
));
}
}
currentElement = currentElement.parentElement;
}
// Remove any other instances
IHTMLElement[] elements =
GetElements(ElementFilters.CreateTagIdFilter(MarkupServices.GetNameForTagId(tagId)), false);
foreach (IHTMLElement e in elements)
{
if (MarkupServices.GetElementTagId(e) == tagId &&
(!onlyIfNoAttributes || !HTMLElementHelper.HasMeaningfulAttributes(e)))
{
try
{
MarkupServices.RemoveElement(e);
}
catch (COMException ex)
{
Trace.Fail(String.Format("Failed to remove element ({0}) with error: {1}",
e.outerHTML, // {0}
ex // {1}
));
}
}
}
}
/// <summary>
/// Determines if a range has a particular _ELEMENT_TAG_ID applied.
/// </summary>
/// <param name="tagId"></param>
/// <param name="partially">If true, then IsTagId will return true if any part of it is contained within a tagId element.
/// If false, then IsTagId will return true only if the range is entirely contained within a tagId element.</param>
/// <returns></returns>
public bool IsTagId(_ELEMENT_TAG_ID tagId, bool partially)
{
// This first block of code will return true if the range is entirely contained within an element with the given tagId.
IHTMLElement currentElement = ParentElement();
while (currentElement != null)
{
if (MarkupServices.GetElementTagId(currentElement) == tagId)
{
return(true);
}
currentElement = currentElement.parentElement;
}
// This second block of code will return true if the range is partially contained within an element with the given tagId.
if (partially)
{
IHTMLElement[] elements = GetElements(ElementFilters.CreateTagIdFilter(MarkupServices.GetNameForTagId(tagId)), false);
return(elements.Length > 0);
}
return(false);
}
