c# - WPF: Updating private setter variable IS not raising propertyChanged event handler -

c# - WPF: Updating private setter variable IS not raising propertyChanged event handler -

my view model has next code. i'm using mvvmlight

class settingsviewmodel : viewmodelbase { public settingsviewmodel() { } string _customername; public string customername { { homecoming _customername; } set { if (_customername == value) return; _customername = value; raisepropertychanged("customername"); } } private void _changenameprivate() { this._customername = "someprivatename"; } private void _changenamepublic() { this.customername = "somepublicname"; } }

my question when phone call _changenameprivate raisepropertychanged event handler not raised. it's raised when phone call _changenamepublic function. shouldn't updating private variable raise property changed event ?

as @dkozl , @ben said, expected:

the code provided, phone call raisepropertychanged event handler in set section of customername property:

public string customername { { homecoming _customername; } set { if (_customername == value) return; _customername = value; raisepropertychanged("customername"); } }

as such, in _changenamepublic() changes value of property phone call set section , raise raisepropertychanged handler. in _changenameprivate(), assign value field _customername.

c# wpf mvvm