Data binding
Data binding is a technique that connects application data or state to user-interface elements or component properties so values or behavior can be represented or synchronized.
D3.js in Action, Third Edition
Data binding is a pattern that associates data values with document elements so the elements can be generated or updated from those values.
- How it is used
- Generates chart marks, legends, and filter controls by coupling data records to DOM elements.
- How deep it goes
- Explains selectAll(), data(), and join(), then develops keyed enter, update, and exit behavior for filtered views.
- Examples
- Uses bar-chart rectangles, donut arcs with percentage labels, an HTML color legend, histogram bins, and filtered scatterplot circles.
- What you can do after
- Build it from scratch with D3 to create, update, and preserve data-linked DOM elements during visualization changes.
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.NET MAUI in Action
Data binding is a technique that connects user-interface properties to source-object properties or commands so values and actions can be synchronized.
- How it is used
- Connects .NET MAUI UI properties, collections, and commands to code or other UI elements for interactive apps.
- How deep it goes
- Defines sources, targets, BindableObject, binding contexts, view bindings, collection templates, and MVVM commands; defers value converters.
- Examples
- Demonstrates Entry-to-Label text, Slider-to-Image scale, a to-do CollectionView, and an inventory search-and-submit workflow.
- What you can do after
- Apply it via .NET MAUI XAML and ViewModels to synchronize controls, render collections, and invoke bound commands.
Pro Angular 16
Data binding is a technique that connects application data with a user-interface representation so changes can be reflected between them.
- How it is used
- Connects component data and logic to dynamic HTML generated from Angular templates.
- How deep it goes
- Explains one-way bindings through expressions, targets, interpolation, element configuration, classes, and styles; defers advanced bindings and custom extensions.
- Examples
- Uses product counts, a to-do table’s data source, store-category counts, and cart quantities to illustrate bindings.
- What you can do after
- Apply it via Angular templates to display component values and configure element properties, classes, and styles.
Pro ASP.NET Core 7, Tenth Edition
A Blazor component binding that associates a component value parameter with a property on the edited model.
- How it is used
- Keeps HTML inputs, child components, and edit-form controls synchronized with C# properties.
- How deep it goes
- Works through manual event wiring, binding attributes, custom component parameter conventions, and typed form controls; does not descend into binding internals.
- Examples
- Uses a city input and buttons, a city-selection component that highlights table rows, and an editor for person properties.
- What you can do after
- Apply it via Blazor binding attributes to synchronize inputs and components, including typed controls inside EditForm.
Read how Pro ASP.NET Core 7, Tenth Edition explains data binding →
Web Components in Action
Data binding is a technique for synchronizing application data with a user interface or component state.
- How it is used
- Frames data binding as a framework-provided way to coordinate application data, interface state, and component interactions.
- How deep it goes
- Contrasts framework offerings with no-framework alternatives but stops short of implementing a binding mechanism.
- Examples
- Uses nested color-picker inputs, DOM event bubbling, event buses, and deprecated Object.observe as concrete reference points.
- What you can do after
- Evaluate whether framework data binding or simpler event and state-management patterns better fit a component application.
Related concepts
- binding source propertyuses · A binding source property is the property whose value is propagated by a data binding to its target property.
- view modeluses · A view model is a data structure that supplies a user-interface view with the data required to render a particular output.
- component templateuses · An Angular component template is declarative, HTML-based markup containing expressions and bindings that define a component’s rendered view.
- buttonproduces · A button is an interactive user-interface control that can be activated to initiate an action or select an option.
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