public bool SelectElements(ICollection elements)
{
Interop.IHTMLElement body = _editor.MSHTMLDocument.GetBody();
Interop.IHTMLTextContainer container = body as Interop.IHTMLTextContainer;
Debug.Assert(container != null);
object controlRange = container.createControlRange();
Interop.IHtmlControlRange htmlControlRange = controlRange as Interop.IHtmlControlRange;
Debug.Assert(htmlControlRange != null);
if (htmlControlRange == null)
{
return(false);
}
Interop.IHtmlControlRange2 htmlControlRange2 = controlRange as Interop.IHtmlControlRange2;
Debug.Assert(htmlControlRange2 != null);
if (htmlControlRange2 == null)
{
return(false);
}
int hr = 0;
foreach (object o in elements)
{
Interop.IHTMLElement element = GetIHtmlElement(o);
if (element == null)
{
return(false);
}
hr = htmlControlRange2.addElement(element);
if (hr != Interop.S_OK)
{
break;
}
}
if (hr == Interop.S_OK)
{
//If it succeeded, simply select the control range
htmlControlRange.Select();
}
else
{
// elements like DIV and SPAN, w/o layout, cannot be added to a control selelction.
Interop.IHtmlBodyElement bodyElement = (Interop.IHtmlBodyElement)body;
Interop.IHTMLTxtRange textRange = bodyElement.createTextRange();
if (textRange != null)
{
foreach (object o in elements)
{
try
{
Interop.IHTMLElement element = GetIHtmlElement(o);
if (element == null)
{
return(false);
}
textRange.MoveToElementText(element);
}
catch
{
}
}
textRange.Select();
}
}
return(true);
}
public void MoveToElementText(IElement element)
{
Interop.IHTMLElement pElement = element.GetBaseElement();
tr.MoveToElementText(pElement);
}