void _activator_Emphasise(object sender, EmphasiseEventArgs args)
{
var rootObject = _activator.GetRootObjectOrSelf(args.Request.ObjectToEmphasise);
// unpin first if there is somthing pinned, so we find our object!
if (_pinFilter != null && _activator.IsRootObjectOfCollection(_collection, rootObject))
{
_pinFilter.UnApplyToTree();
}
//get the parental hierarchy
var decendancyList = CoreChildProvider.GetDescendancyListIfAnyFor(args.Request.ObjectToEmphasise);
if (decendancyList != null)
{
//for each parent in the decendandy list
foreach (var parent in decendancyList.Parents)
{
//parent isn't in our tree
if (Tree.IndexOf(parent) == -1)
{
return;
}
//parent is in our tree so make sure it's expanded
Tree.Expand(parent);
}
}
//tree doesn't contain object even after expanding parents
int index = Tree.IndexOf(args.Request.ObjectToEmphasise);
if (index == -1)
{
return;
}
if (args.Request.ExpansionDepth > 0)
{
try
{
Tree.BeginUpdate();
ExpandToDepth(args.Request.ExpansionDepth, args.Request.ObjectToEmphasise);
}
finally
{
Tree.EndUpdate();
}
}
if (args.Request.Pin && Settings.AllowPinning)
{
Pin(args.Request.ObjectToEmphasise, decendancyList);
}
//update index now pin filter is applied
index = Tree.IndexOf(args.Request.ObjectToEmphasise);
//select the object and ensure it's visible
Tree.SelectedObject = args.Request.ObjectToEmphasise;
Tree.EnsureVisible(index);
args.Sender = Tree.FindForm();
}