inotifypropertychanged

This is how we do it normally: public class ViewModel : INotifyPropertyChanged { string _test; public string Test { get { return _test; } set { _test = value; OnPropertyChanged(); } } public event PropertyChangedEventHandler PropertyChanged; public void OnPropertyChanged([CallerMemberName] string property = "") => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(property)); } Now our property can be used by multiple elements in the view, e.g.: <TextBox Text="{Binding Test, UpdateSourceTrigger=PropertyChanged}" /> <TextBlock Text="{Binding Test}" /> Changing value in TextBox will

I have the following (abbreviated) xaml: <TextBlock Text="{Binding Path=statusMsg, UpdateSourceTrigger=PropertyChanged}"/> I have a singleton class: public class StatusMessage : INotifyPropertyChanged { private static StatusMessage instance = new StatusMessage(); private StatusMessage() { } public static StatusMessage GetInstance() { return instance; } public event PropertyChangedEventHandler PropertyChanged; private void OnPropertyChanged(string status) { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(status)); } } private string statusMessage; public string

I know I can use ObjectContext instead, but I like the features of DbContext / DbSet. My application isn't large enough to warrant me writing complex view models, so I'd like to implement change notification on the EF generated models directly. How can I achieve this? I've had great success using a NuGet package called PropertyChanged.Fody to get INPC implemented on the entity classes. Just install the package, then add the [ImplementPropertyChanged] attribute to any class and PropertyChanged.Fody will "inject" INPC into the class as part of the build process. For example if you have a

With each loop iteration, I want to visually update the text of a textblock. My problem is that the WPF window or control does not visually refresh until the loop is complete. for (int i = 0; i < 50; i++) { System.Threading.Thread.Sleep(100); myTextBlock.Text = i.ToString(); } In VB6, I would call DoEvents() or control.Refresh . At the moment I'd just like a quick and dirty solution similar to DoEvents() , but I'd also like to know about alternatives or the "right" way to do this. Is there a simple binding statement I could add? What is the syntax? Thanks in advance. If you really want the

this question is going to show my lack of understanding of the expected behavior when implementing/using INotifyPropertyChanged: The question is - for binding to work as expected, when you have a class which itself implements INotifyPropertyChanged, that has nested properties of type INotifyPropertyChanged are you expected to internally subscribe to change notification for these properties and then propagate the notifications? Or is the binding infrastructure expected to have the smarts to make this unnecessary? For example (note this code is not complete - just meant to illustrate the

I found this code snippet for INotifyPropertyChanged But it shows the code like this : I would have this : for public : capital letter for the first letter + ... for private : underscore + small letter for the first letter + ... How can I achieve this ? Edit : Without having to type the public and the private fields <Snippet> <Declarations> <Literal> <ID>type</ID> <ToolTip>Property type</ToolTip> <Default>string</Default> </Literal> <Literal> <ID>property</ID> <ToolTip>Property name</ToolTip> <Default>MyProperty</Default> </Literal> <Literal> <ID>notifyMethod</ID> <ToolTip>name of method to

I have core functionality encapsulated in ViewModelBase Now I want to see when PropertyChanged event was raised by ViewModelBase and act on it. For example, when one property was changed on ViewModelBase - I want to change property on my ViewModel How do I achieve this? public class MaintainGroupViewModel : BaseViewModel<MEMGroup> { public abstract class BaseViewModel<T> : NotificationObject, INavigationAware where T : Entity { I am concerned that you're effectively doing a 'manual binding' (bad) for a property in a derived class to a value on the base class (also bad). The whole point of

I had a variable which was not static and INotifyPropertyChanged implemented succesfully. Then I tried to make it global, so turned it a static variable. But this time, INotifyPropertyChanged does not work. Any solution? INotifyPropertyChanged works on instance properties. One solution is to use a singleton pattern and keep INotifyPropertyChanged , the other is to use your own event to notify listeners. Singleton example public sealed class MyClass: INotifyPropertyChanged { private static readonly MyClass instance = new MyClass(); private MyClass() {} public static MyClass Instance { get {

I have a custom object that implements INotifyPropertyChanged. I have a collection of these objects where the collection is based on BindingList I have created a binding source for the collection, and set the datasources of the bindingsource and datagridview. Everything works great, except I need to update properties on the custom object from background threads. when I do so, I get the following error : BindingSource cannot be its own data source. Do not set the DataSource and DataMember properties to values that refere back to BindingSource I found the following post that seems to have my

I've a class like this: public class PersonViewModel : ViewModelBase //Here is the INotifyPropertyChanged Stuff { public PersonViewModel(Person person) { PersonEntity = person; } public Person PersonEntity { get { return PersonEntity.Name; } private set { PersonEntity.Name = value; RaisePropertyChanged("PersonEntity"); } public string Name { get { return PersonEntity.Name; } set { PersonEntity.Name = value; RaisePropertyChanged("Name"); } public int Age{ get { return PersonEntity.Age; } set { PersonEntity.Age= value; RaisePropertyChanged("Age"); } public void ChangePerson(Person newPerson) { /