TextBox Binding in XAML

Question

Hi  Anyone please help me My textbox will show listview seleted item TextBox Name = txt1 HorizontalAlignment = Left Height = 23 Margin = 469000 TextWrapping = Wrap Text ={ Binding ElementName = _ PList  Path = SelectedItem . FirstName  Mode = TwoWay  UpdateSourceTrigger = PropertyChanged }  VerticalAlignment = Top Width = 120 Grid.Column = 1 Grid.RowSpan = 2 /> if I modify like this I can add new item TextBox Name = txt1 HorizontalAlignment = Left Height = 23 Margin = 469000 TextWrapping = Wrap Text ={ Binding Path = Firstname  Mode = TwoWay  UpdateSourceTrigger = PropertyChanged }  VerticalAlignment = Top Width = 120 Grid.Column = 1 Grid.RowSpan = 2 /> my question is how to achieve both scenario in binding way I want to connect First property to FirstnameFirstname is model class property I have added below logic in my viewmodel public string First { get { return _First; } set { SetProperty( ref this . _First value ); } } public void AddPerson() { this . PersonMaster . Add( new Person () { FirstName = this . First } ); }

ketan borsdiya · Answer

Hi Karthikeyan Create Person class property like below private Person selectedPerson; public Person SelectedPerson { get { return selectedPerson;} set { selectedPerson = value;} } Bind selected item in ListView like below SelectedItem={Binding SelectedPersonUpdateSourceTrigger=PropertyChangedMode=TwoWay} Bind your textbox using below sentence Text={Binding SelectedPerson.FirstNameUpdateSourceTrigger=PropertyChangedMode=TwoWay} Now check Person class's ID entity if it zero then add new other wise update it

Rajeesh Menoth · Answer

Hi I think you can bind list in Background. Please check the following reference. Reference : http://www.c-sharpcorner.com/uploadfile/rvemura.net/two-way-databinding-in-wpf/