I need to define new UI Elements as well as data binding in code because they will be implemented after run-time. Here is a simplified version of what I am trying to do. Data Model: public class AddressBook : INotifyPropertyChanged { private int _houseNumber; public int HouseNumber { get { return _houseNumber; } ...
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 obje...
I have a WPF form and I am working with databinding. I get the events raised from INotifyPropertyChanged, but I want to see how to get a list of what items are listening, which i fire up the connected handler. How can I do this? ...
I have a hierarchy of objects (objects A, B), each of which implements INotifyPropertyChanged such that... A has a member of type B, B has a member of C, C is of type bool When C changes, its PropertyChanged event gets fired, however this does not fire B's property changed event. And therefore A does not react to B's change. Is there ...
At first I want to say that sample below is oversimplification. Suppose you have bound WPF control. <Window Title="Window1" Height="300" Width="300"> <Grid> <StackPanel> <TextBox Text="{Binding Name}" Margin="10"/> <Button HorizontalAlignment="Center" Content="Click Me" Margin="5" Padding="2" Click=...
When you implement the INotifyPropertyChanged interface, you're responsible for calling the PropertyChanged event each and everytime a property is updated in the class. This typically leads to the following code : public class MyClass: INotifyPropertyChanged private bool myfield; public bool MyField { ...
I have setup a property and implement INotifyPropertyChanged like so... public event PropertyChangedEventHandler PropertyChanged; public FlowProcess LastSelectedFlowProcess { get { return _lastSelectedFlowProcess; } set { _lastSelectedFlowProcess = value; Notify("LastSelectedFlowProcess"); UpdateFlo...
I have Public Overrides Property UID() As String Get Return mUID End Get Set(ByVal value As String) If Me.IsNew Then mUID = value End If OnPropertyChanged("UID") End Set End Property The class implements INotifyPropertyChanged and I...
I am working on a daemon that monitors file events via inotify to trigger various types of events when files are accessed. I have read that watches are a little expensive, because the Kernel is storing the full path name of every file being watched. How many watches would be too many? Edit: Mostly, I'm wondering .. have you ever seen a...
I have a set of data objects that I am using for databinding that implement the INotifyPropertyChanged interface and I'm trying to figure out what to do with properties of complex type. If I have something like class C { private string text; public string Text { get { return text; } set { if(Text != value) { text = value;...
I'm developing an application in Silverlight2 and trying to follow the Model-View-ViewModel pattern. I am binding the IsEnabled property on some controls to a boolean property on the ViewModel. I'm running into problems when those properties are derived from other properties. Let's say I have a Save button that I only want to be enabled...
Hi all I'm working with a DataGridView (Windows Forms) with MultiSelect enabled which is placed in a User Control. I'd like to update all selected rows from outside the User Control by calling a public method that implements the following code: foreach(DataGridViewRow dr in dataGridView.SelectedRows) { MyBusiness business = (MyBusi...
I'm in a situation where I am being informed from an outside source that a particular entity has been altered outside my current datacontext. I'm able to find the entity and call refresh like so MyDataContext.Refresh(RefreshMode.OverwriteCurrentValues, myEntity); and the properties which have been altered on the entity are updated corr...
I have almost a hundred of entity classes looking like that: [Serializable] public class SampleEntity : INotifyPropertyChanged { private string name; public string Name { get { return this.name; } set { this.name = value; FirePropertyChanged("Name"); } } [field:NonSerialized] public event Propert...
Hi, I have a listbox which is databound to a collection of objects. I want to modify the way the items are displayed to show the user which one of these objects is the START object in my program. I tried to do this the following way, but the listbox does not automatically update. Invalidating the control also didn't work. The only wa...
I finally got a Silverlight MVVM example to work so that when I change the values of first name and last name text boxes, the full names change automatically. However, and strangely, my model which inherits from INotifyPropertyChanged is only notified if I change at least 2 characters of either the first or last name. if I change "Sm...
Hi, I want to display a bunch of Objects i have created in a ListBox. My objects implement the INotifyPropertyChanged Interface. I tried to use an ObservableCollection, which i have bound to a listbox Control (listbox1.DataContext = MyCollection) But this does not exactly what i want to do, because the Listbox is not refreshed when one o...
I'm building a simple UserControl example with DependencyProperties so that the properties of the control can be changed in XAML (code below). But of course in my application I don't want this control to have tightly-coupled code-behind, but instead the user control will be a view called "DataTypeWholeNumberView" and it will have its ow...
basically I want to do something like this: public static void OnPropertyChanged(this INotifyPropertyChanged changedObject, string propertyName) { var handler = changedObject.PropertyChanged; if (handler != null) { var e = new PropertyChangedEventArgs(propertyName); handler(changedObject, e); } } which ...
Hello. I'm trying to bind a HashSet to a ListView item. I've documented my code here: public class Person { public string Name { get; set; } public AddressList = new AddressList (); } public class AddressList : HashSet<Addresses> { // } public class Addresses { public string Streetname { get; set; } public string Ci...