Change Property Qml inside Class

[MrErfan]

Hi Guys ,
I want change the property value of a variable in class , But value does not change
Why not change the value ?
tnQ

// Class.h
    QString loginsts;
    QString getLoginsts() const;
    void setLoginsts(const QString value);

//Class.cpp

QString MyClass::getLoginsts() const
{
    return loginsts;
}

void MyClass::setLoginsts(const QString value)
{
    loginsts = value;
}

void MyClass::login(QString usr2,QString psw2)
{

    if( ... )
    {

         setLoginsts("true");
    }

}

// button onclicked qml
    property string loginsts : MyClass.getLoginsts()
        onClicked: {
            txt.text = loginsts
//There is no value

            if(loginsts)
            {
		....
            }
        }

[A Former User]

Hi! If you want to use property bindings then you must declare your loginsts with Q_PROPERTY macro. This is well explained here.