2-way-object-databinding

I am using 2 way binding with winforms text boxes. I need to work out if the user has changed my data Looking at the help for the CurrentItemChanged Event It seems that this event does fire if a property has changed, however it also fires if current has changed. Is there a way to tell whether the data has changed? a similar question is also asked here but not answered in my opinion Oliver mentions "if your object within the List support the INotifyPropertyChanged event and you replace the List by a BindingList you can subscribe to the ListChanged event of the BindingList to get informed about

Relatively new to WFP and C# (longtime PHP programmer)... I successfully set up 2-WAY data binding between a TextBox and a Property of an Object. I was able to establish the binding in the Code-Behind, but not do it in the XAML instead. I would like to learn how to do the BINDING in the XAML instead. That is, in the example below, how to move the line myTestPanel.DataContext = CURRENT_NETWORK; from the Code-Behind to the XAML? I looked at tutorials, examples, etc., but none helped... They seem to want me to bind the TextBox (or parent object) to a CLASS, not to an OBJECT. Some examples suggest

Let say that we have an object class Entity { public string ID {get; set;} public string Name {get; set;} } I want to bind properties to two textboxes on a page something like this: <asp:FormView ID="FormView" runat="server"> <ItemTemplate> <asp:textbox ID="TextId" Text='<%# Bind("ID") %>'/> <asp:textbox ID="TextId" Text='<%# Bind("Name") %>'/> </ItemTemplate> </asp:FormView> and then write this in code behind public EntityObject { get { return ViewState["Entity"] as Entity; } set { ViewState["Entity"] = value; } } protected override void OnInit(EventArgs e) { if (EntityObject== null)

AngularJS allows you to implement two-way data binding. However, the interesting part is how it detects model changes? The model is usually a plain object like the code below. We can change the name property of $scope.user but how does AngularJS detect the model changed? Does AngularJS enum all the properties of the $scope object? angular.module('myApp', []) .controller('BusinessCardController', function($scope){ $scope.user = { name: 'Tanay Pant' } }); <input type="text" ng-model="user.name" placeholder="Full Name" /> There is a digest cycle, where the scope examines all of the $watch

I have used Data binding in my existing code and now I am migrating to Room for persistence. I have followed the steps mentioned in Florina's Blog for room My Code builds fine without java code error or BR related error when I remove room dependency annotationProcessor 'android.arch.persistence.room:compiler:1.0.0' and its runs too, but gives Runtime exception saying database_Impl does not exists. As it couldn't generate that's file. But after I put Annotation processor back, it give me Error:(29, 37) error: cannot find symbol class BR My gradle plugin used is com.android.tools.build:gradle:3

In Angular2 (Beta 6) I have a component for a main menu. <mainmenu></mainmenu> I want to bind a boolean for wide or narrow. So I made it into this: <mainmenu [(menuvisible)]="true"></mainmenu> But what I want (I think) is to bind to a javascript class property (as I may have other things to bind but want to be tidy by using a single class in the component). I get an error EXCEPTION: Template parse errors: Invalid property name 'menumodel.visible' (" ][(menumodel.visible)]="menumodel.visible"> If I try the same with a single variable instead of a class I get: Template parse errors: Parser Error

I am going to take a crack at building a penny auction site for a specific niche using angular JS. I am trying to plan the countdown timers and i've been itching for a reason to try out firebase. I had the idea yesterday to have each auction somehow have a countdown in the actual database, because with 2 way data binding, peoples clientside will always stay updated. When the firebase changes, all the connected clients instantly change. So my question is this... How could I do a server side countdown within a particular record. So say I had a record for item x and it had all that items

I know Angular2 doesn't have two-way data binding but is there a way to mimick the two-way data binding behavior from Angular1.x? PSL Note - scroll down the answer for ng-model binding You could actually do that, just that you need to invoke internal changelistener tick (similar to digest) to update binding in the zone, You can just add a (keyup) event for that. Similarly you could use directive bindings as well with properties dictionary of component settings. Example:- <input #label (keyup)> <!-- variable #label represented as the element itself and accessible as property on controller