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Easy integration with other controls such as the data grid.
Built-in support for autofill (auto suggest), remote data binding, grouping, highlight search, templating, validation, 13 built-in themes, and much more.
Integrated multicolumn support and multiple selection.

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ASP.NET autocomplete

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Overview

The ASP.NET Web Forms AutoComplete is a textbox control that provides a list of suggestions to select from as the user types. It has several out-of-the-box features such as data binding, filtering, grouping, UI customization, accessibility, and more.

ASP.NET Web Forms AutoComplete with data binding

Data binding

You can bind data from a variety of data sources, such as an array of primitive data, JSON data collections, or remote data sources using different kinds of adaptors such as OData, OData V4, URL, JSON, and Web API. Data binding uses our data manager to manage data and also has customization options for data requests and processing.

AutoComplete data binding example

AutoComplete data binding documentation

Filtering

Built-in filtering support includes a rich set of filtering options that is available to meet all your application needs.

AutoComplete filtering example

AutoComplete filtering documentation

ASP.NET Web Forms AutoComplete with Filter type

Filter type

Filter data based on starts with, ends with, and contains predicates.

ASP.NET Web Forms AutoComplete with Limit suggestion items

Limit suggestion items

Limit the number of suggestions to be displayed in the filtered data list.

ASP.NET Web Forms AutoComplete with Ignore filter text casing

Ignore filter text casing

You can filter data with or without using case sensitivity for typed characters.

ASP.NET Web Forms AutoComplete with Minimum filter characters length

Minimum filter characters

Set a number of characters required to begin filtering and populating the data.

Highlight matched text

You can configure different visual appearances for the matching text of each suggestion.

AutoComplete highlight matched text example

ASP.NET Web Forms AutoComplete with Highlight matched text

ASP.NET Web Forms AutoComplete with Autofill Search

Autofill search

The AutoComplete control has an autofill search option that completes the word that the user types based on the suggestion text, allowing the end user to search for items easily.

AutoComplete autofill example

AutoComplete autofill documentation

Grouping

Group the suggestions based on logically grouped categories with individual headers.

AutoComplete grouping example

AutoComplete grouping documentation

ASP.NET Web Forms AutoComplete with Grouping

UI customization

Customize the appearance of each item displayed in the suggestion list with templating.

AutoComplete customization example

AutoComplete customization documentation

ASP.NET Web Forms AutoComplete with Item template

Template

Define a custom appearance for each suggestion item by using item templates.

ASP.NET Web Forms AutoComplete with Icons in suggestion list

Icons

Add icons to each suggestion item, like countries with flag icons.

ASP.NET AutoComplete with Dimension customization

Suggestion list

Generate a suggestion list for users as they type in the input textbox. The width and height of the suggestion list is adjustable.

AutoComplete dimension customization documentation

Other frameworks

The ASP.NET Web Forms AutoComplete control is also available in Angular and React frameworks that are built from their own TypeScript libraries.

Angular AutoComplete features

React AutoComplete features

Forms support

Seamlessly supports HTML5 forms, Angular template-driven forms, and Angular reactive forms.

Mobile-friendly, responsive UI

Provides a responsive mode that displays an adaptive redesigned UI for mobile devices that recognizes touch gestures.

Web accessibility

Fully supports WAI-ARIA accessibility standards that make the AutoComplete control accessible to screen readers and assistive devices.
Follows WAI-ARIA best practices for implementing keyboard interaction.
Designs the UI element visuals such as foreground color, background color, line spacing, text, and images based on the WCAG 2.0 standard.
Supports right-to-left (RTL) direction for users working in right-to-left languages like Hebrew, Arabic, or Persian.