> For the complete documentation index, see [llms.txt](https://avaloniachina.gitbook.io/avalonia/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://avaloniachina.gitbook.io/avalonia/docs/controls/calendar.md).

# Calendar

The `Calendar` control is a standard Calendar control for users to select date(s) or date ranges.

## Common Properties

| Property           | Description                                                                                     |
| ------------------ | ----------------------------------------------------------------------------------------------- |
| `SelectionMode`    | Gets or sets a value that indicates what kind of selections are allowed.                        |
| `DisplayMode`      | Gets or sets a value indicating whether the calendar is displayed in months, years, or decades. |
| `SelectedDate`     | Gets or sets the currently selected date.                                                       |
| `SelectedDates`    | Gets a collection of selected dates.                                                            |
| `DisplayDate`      | Gets or sets the date to display.                                                               |
| `DisplayDateStart` | Gets or sets the first date to be displayed.                                                    |
| `DisplayDateEnd`   | Gets or sets the last date to be displayed.                                                     |
| `BlackoutDates`    | Gets a collection of dates that are marked as not selectable.                                   |

## Reference

[Calendar](http://reference.avaloniaui.net/api/Avalonia.Controls/Calendar/)

## Source code

[Calendar.cs](https://github.com/AvaloniaUI/Avalonia/blob/master/src/Avalonia.Controls/Calendar/Calendar.cs)

## Examples

### Basic Calendar

```markup
<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
        x:Class="AvaloniaAppTemplate.MainWindow"
        Title="AvaloniaAppTemplate">
	<StackPanel>
		<Calendar SelectionMode="SingleDate" />
	</StackPanel>
</Window>
```

### Range selection Calendar

```markup
<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
        x:Class="AvaloniaAppTemplate.MainWindow"
        Title="AvaloniaAppTemplate">
	<StackPanel>
		<Calendar SelectionMode="SingleRange" />
	</StackPanel>
</Window>
```

After selecting the start date, a single range can be selected by holding the shift key and clicking on the end date.

### Calendar with custom start and end dates

```markup
<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
        x:Class="AvaloniaAppTemplate.MainWindow"
        Title="AvaloniaAppTemplate">
	<StackPanel>
		<Calendar Name="DisplayDatesCalendar" SelectionMode="SingleDate"/>
	</StackPanel>
</Window>
```

With this code to set the start and end dates:

```csharp
var today = DateTime.Today; 
var cal1 = this.FindControl<Calendar>("DisplayDatesCalendar");
cal1.DisplayDateStart = today.AddDays(-25);
cal1.DisplayDateEnd = today.AddDays(25);
```


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