//Calculates whether ShowExpanded for a given WorklfowViewElement should be true or false.
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
ModelItem modelItem = (ModelItem)values[0];
bool isRootDesigner = (bool)values[1];
bool shouldExpandAll = (bool)values[2];
bool shouldCollapseAll = (bool)values[3];
bool expandState = (bool)values[4];
bool pinState = (bool)values[5];
WorkflowViewElement viewElement = (WorkflowViewElement)values[6];
//Pinstate should be false in following cases (Designer should be unpinned in following cases):
//1. ExpandAll is not enabled.
//2. ExpandAll is enabled and ExpandState is true.
//Similarly for Collapse All.
if ((!shouldExpandAll || expandState) &&
(!shouldCollapseAll || !expandState))
{
viewElement.PinState = false;
}
if (viewElement.IsAncestorOfRootDesigner)
{
return(true);
}
return(ViewUtilities.ShouldShowExpanded(isRootDesigner, viewElement.DoesParentAlwaysExpandChild(),
viewElement.DoesParentAlwaysCollapseChildren(), expandState, shouldExpandAll, shouldCollapseAll, viewElement.PinState));
}
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
if (values[0] != DependencyProperty.UnsetValue && values[1] != DependencyProperty.UnsetValue)
{
bool isExpanded = (bool)values[0];
bool isPinned = (bool)values[1];
bool shouldExpandAll = (bool)values[2];
bool shouldCollapseAll = (bool)values[3];
ExpandableItemWrapper wrapper = (ExpandableItemWrapper)values[4];
if ((!shouldExpandAll || isExpanded) &&
(!shouldCollapseAll || !isExpanded))
{
wrapper.SetPinState(false);
}
return(ViewUtilities.ShouldShowExpanded(isExpanded, shouldExpandAll, shouldCollapseAll, wrapper.IsPinned));
}
else
{
return(false);
}
}