Access parent class instance attribute from child class instance?

Parent is a class – blue print not an instance of it, in OOPS to access attributes of an object it requires instance of the same, Here self/child is instance while Parent/Child are classes… see the answer below, may clarify your doubts. class Parent(): def __init__(self): self.myvar = 1 class Child(Parent): def __init__(self): Parent.__init__(self) # … Read more

Get owner of context menu in code

this will give you the exact thing you want private void OnDeleteClicked(object sender, System.Windows.RoutedEventArgs e) { MenuItem mnu = sender as MenuItem; StackPanel sp = null; if(mnu!=null) { sp = ((ContextMenu)mnu.Parent).PlacementTarget as StackPanel; } } Hope this helps!!

calling child class method from parent class file in python

Doing this would only make sense if A is an abstract base class, meaning that A is only meant to be used as a base for other classes, not instantiated directly. If that were the case, you would define methodB on class A, but leave it unimplemented: class A(object): def methodA(self): print(“in methodA”) def methodB(self): … Read more

XML xpath, get the parent element till a specific element

Given the XML <?xml version=”1.0″?> <root> <foo id=”id1″> <foo id=”i2″> <baz/> </foo> </foo> </root> You can find the nearest ancestor foo element from baz using the XPath expression: //baz/ancestor::foo[1] Which will select the foo element node of id “i2”. So in your example (if I understand right) once you have got the “a” element you … Read more

How to access to the parent object in c#

Store a reference to the meter instance as a member in Production: public class Production { //The other members, properties etc… private Meter m; Production(Meter m) { this.m = m; } } And then in the Meter-class: public class Meter { private int _powerRating = 0; private Production _production; public Meter() { _production = new … Read more

Import from sibling directory

as a literal answer to the question ‘Python Import from parent directory‘: to import ‘mymodule’ that is in the parent directory of your current module: import os parentdir = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) os.sys.path.insert(0,parentdir) import mymodule edit Unfortunately, the __file__ attribute is not always set. A more secure way to get the parentdir is through the inspect module: … Read more

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