Built-in Controls

Here are some of the more commonly-used Avalonia controls, organised by category:

Layout controls

Control	Description
Border	Decorates a single child with a border and background.
Canvas	Displays child controls at specified positions.
Dock Panel	Arranges child controls along specified edges (top, bottom, left, right) with one filling any remaining space.
Expander	Has a header area (always visible) and a collapsible content section (single child).
Grid	Arranges child controls in the cells of a grid, positioned by row and column. The cells can span rows and columns.
Grid Splitter	Can be added to a grid to allow the user to resize rows or columns at runtime.
Panel	Stacks child controls on top of one another.
Relative Panel	Allows multiple child controls. The position and alignment of the child controls can be specified in relation to the panel itself, or in relation to other child controls. The size of child controls can be specified, or calculated from relations and alignments.
Scroll Viewer	Adds scroll bars and scrolling behaviour if the (single) child is larger than the space available.
Split View	Adds a collapsible pane to the edge of its (single child) content zone.
Stack Panel	Allows multiple child controls, arranged in sequence, horizontally or vertically.
Tab Control	The tab control allows you to sub-divide a view into tab items.
Uniform Grid	Allows multiple child controls, arranged in a grid with cells of uniform column and row size.
Wrap Panel	Arranges child controls in sequence from left to right, while they fit in the width. Starts a new line when there is no space left.

Buttons

Control	Description
Button	The basic button control - can display text, an icon or both. Has standard 'click' behavior.
Repeat Button	A button that raises its click event repeatedly when it is pressed and held.
Radio Button	A button that has a selected state. It can be placed in a group so that selection of one button deselects all the others in the group.
Toggle Button	A button that has a selected state and a unselected state. Subsequent clicks 'toggle' this state. A 'checked' pseudo class allows different styles to be allocated to the selected and unselected states.
Button Spinner	A control with two spin buttons and a content zone.
Split Button	This functions as a button with primary and secondary parts that can be pressed independently. The primary part behaves like standard button, and the secondary part opens a flyout with additional actions.
Toggle Split Button	This functions as a button with primary and secondary parts that can be pressed independently. The primary part behaves like toggle button, and the secondary part opens a flyout with additional actions.

Repeating Data Controls

These controls display repeating data, in either a tabular or list format:

Control	Description
Data Grid	Displays data in a customizable grid.
Items Control	Displays a collection of items from a bound data source.
Items Repeater	Displays repeating data from a bound data source. It has both a layout template and a data template.
List Box	A control with items that can be selected.
Combo Box	A control with a drop-down list with items that can be selected.

Text display and editing

Control	Description
Auto Complete Box	A control that shows a text box for user input and a drop-down that contains possible matches based on what has been typed.
Text Block	A control that displays a block of text. Read-only.
Text Box	Used to display or edit text without formatting restrictions.
Masked Text Box	Used to display text in the format contained in a mask; or used to edit text using the format mask to prevent invalid user input.

Value selection

Control	Type	Description
Check Box	Boolean	True value presented as a check mark. Click interaction toggles the value. Has an option to display an 'unknown' value.
Slider	Double	Relative value compared to a maximum and minimum value presented as the position along the length of the slider track of the slider button. Drag interaction on the slider button can alter the value between the maximum and minimum values. Keyboard and click interactions can also nudge the value.
Calendar	DateTime	The calendar is a control for users to select dates or date ranges.
Calendar Date Picker	DateTime	An extension of the calendar control that includes a text box and button.
Color Picker	Color / HsvColor	The color picker supports user-selection and editing of colors using a spectrum, palette and component sliders. It also supports an optional alpha component, RGB or HSV color models and hexadecimal color values.
Date Picker	DateTime	The date picker has three 'spinner' controls to allow the user to pick a date value.
Time Picker	TimeSpan	The time picker has three 'spinner' controls to allow the user to pick a time from hours, minutes and seconds.

Displaying images

Control	Description
Image	Displays a bitmap or vector image.
Path Icon	Draws a vector image using the current Foreground.

Menus and Popups

Control	Description
Menu	Displays an application menu.
Flyouts	Attaches a popup or a context menu to a control.
Tool Tip	Displays a tool tip when a control is hovered.