public static IEnumerable <T> Children <T>(this DependencyObject parent, Func <T, bool> predicate, WhereFlags flags)
where T : DependencyObject
{
bool depthFirst = (flags & WhereFlags.DepthFirst) == WhereFlags.DepthFirst;
bool recursive = (flags & WhereFlags.Recursive) == WhereFlags.Recursive;
bool visualTree = (flags & WhereFlags.VisualTree) == WhereFlags.VisualTree;
bool startOnParent = (flags & WhereFlags.StartOnParent) == WhereFlags.StartOnParent;
Func <DependencyObject, bool> finalPredicate;
if (predicate == null)
{
finalPredicate = (depObj => depObj is T);
}
else
{
finalPredicate = depObj => { T elem = depObj as T; return(elem != null && predicate(elem)); }
};
if (visualTree)
{
if (depthFirst)
{
return(DepthFirstVisual(parent, startOnParent, recursive, finalPredicate).Cast <T>());
}
else
{
return(BreathFirstVisual(parent, startOnParent, recursive, finalPredicate).Cast <T>());
}
}
else
{
if (depthFirst)
{
return(DepthFirstLogical(parent, startOnParent, recursive, finalPredicate).Cast <T>());
}
else
{
return(BreathFirstLogical(parent, startOnParent, recursive, finalPredicate).Cast <T>());
}
}
}
public static IEnumerable <T> Children <T>(this DependencyObject parent, string route, WhereFlags flags)
where T : DependencyObject
{
return(Children <T>(parent, p => p.GetRoute() == route, flags));
}
public static IEnumerable <T> Children <T>(this DependencyObject parent, WhereFlags flags)
where T : DependencyObject
{
return(Children <T>(parent, (Func <T, bool>)null, flags));
}
public static T Child <T>(this DependencyObject parent, Func <T, bool> predicate, WhereFlags flags)
where T : DependencyObject
{
return(Children <T>(parent, predicate, flags).FirstEx());
}
public static T Child <T>(this DependencyObject parent, string route, WhereFlags flags)
where T : DependencyObject
{
return(Children <T>(parent, p => p.GetRoute() == route, flags).FirstEx());
}
public static T Child <T>(this DependencyObject parent, WhereFlags flags)
where T : DependencyObject
{
return(Children <T>(parent, (Func <T, bool>)null, flags).FirstEx());
}