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Why I can`t access a protected property from its own class directly?


Why I can`t access a protected property from its own class directly?

By : user2948094
Date : November 14 2020, 04:48 PM
this one helps. The code that tries to access the protected property has to be in a method of the class or a class that extends it. The echo line that you're asking about is not in any class method, it's in the global code of the script. Protected and private properties are not visible outside the class.
code :


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Should a protected property in a C# child class hide access to a public property on the parent?

Should a protected property in a C# child class hide access to a public property on the parent?


By : Luis Calixto
Date : March 29 2020, 07:55 AM
This might help you From ECMA-334 (the C# spec) §10.7.1.2 :
code :
using System;
using NUnit.Framework;

namespace ScratchPad
{
    [TestFixture]
    public class Class1
    {
        [Test]
        public void InheritanceHiding()
        {
            var b = new Base();
            var d = new Derived();

            var baseSomeProperty = b.SomeProperty;
            var derivedSomeProperty = d.SomeProperty;

            b.GetSomeProperty();
            d.GetSomeProperty();
        }
    }

    public class Base
    {
        public string SomeProperty
        {
            get
            {
                Console.WriteLine("Getting Base.SomeProperty");
                return "Base.SomeProperty";
            }
        }

        public string GetSomeProperty()
        {
            return SomeProperty;
        }
    }

    public class Derived : Base
    {
        protected new int SomeProperty
        {
            get
            {
                Console.WriteLine("Getting Derived.SomeProperty");
                return 3; //Determined by random roll of the dice.
            }
        }

        public new int GetSomeProperty()
        {
            return SomeProperty;
        }
    }
}
Getting Base.SomeProperty    //(No Controversy)  
Getting Base.SomeProperty    //(Because you're calling from public scope and the new member is in protected scope, there is no hiding)  
Getting Base.SomeProperty    //(No Controversy)  
Getting Derived.SomeProperty //(Now because you're calling from protected scope, you get the protected member).
Why i can't access protected property in the derived class

Why i can't access protected property in the derived class


By : mina
Date : March 29 2020, 07:55 AM
it helps some times I have a two classes.This is my code: , You're not doing anything wrong, but if you want to access
code :
Name
Student
JSF access private/protected property of a super class

JSF access private/protected property of a super class


By : Robin Singh
Date : March 29 2020, 07:55 AM
this one helps. I think you must use field name in value attribute of InputSwitch component like this:
code :
<p:inputSwitch 
    value="#{device.authorized}" 
    binding="#{AuthorizationInputSwitch}" 
    offLabel="UnAuthorized" 
    onLabel="Authorized"> 
<p:inputSwitch 
    value="#{device.isAuthorized()}" 
    binding="#{AuthorizationInputSwitch}" 
    offLabel="UnAuthorized" 
    onLabel="Authorized">    
Access directly protected field in a base class

Access directly protected field in a base class


By : MilWorker
Date : March 29 2020, 07:55 AM
To fix this issue The following code : , You can override the access specifier using a using directive
code :
#include <iostream>

using namespace std;

class Base {
    protected :
        int a;
    public :
        Base() {};
        Base(int x) :a(x) {};
};

class Derived : public Base {
    public:
        Derived(int x) : Base(x) {};
        using Base::a;
 };


int main() {
    Derived b(11);
    int x;
    x=b.a;
}
Getting error while try to access protected accessor of property of base class in derived class

Getting error while try to access protected accessor of property of base class in derived class


By : lumiere12
Date : March 29 2020, 07:55 AM
it fixes the issue From MSDN Article "A protected member of a base class is accessible in a derived class only if the access occurs through the derived class type."
Here you are accessing Kid's protected setter with its instance. You must create instance of Demo class and access via it.
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