Notifications

Family: Shells & Overlays
Namespace: Tessera.Controls

Use Notifications when this interaction is the best match for your screen workflow.

When to use

• You need a Notifications-style interaction inside the shells & overlays lane.
• A titled widget surface improves scanability in dense shells.
• You want explicit user-driven events routed into app state updates.

Minimal usage

csharp.cs

using Tessera.Controls;
using Tessera.Layout;

var widget = new Notifications
{
    Title = "Notifications"
};

return Screen.Build(window => window.Body(body => body.Center(widget, width: 44, height: 9)));

Common pitfalls

• Do not choose Notifications by name only; validate it against the target workflow.
• Keep this control scoped to the shells & overlays concern; avoid cross-layer state coupling.
• Handle control events by posting/processing messages; avoid hidden mutation in render paths.
• Set focused/normal styles intentionally so keyboard focus remains obvious.
• Keep disabled state explicit and reversible so users understand why actions are blocked.

Public properties

Property	Type
Border	BorderStyle
BorderStyleText	TesseraStyle
DisabledItemStyle	TesseraStyle
ErrorItemStyle	TesseraStyle
FocusedBorderStyleText	TesseraStyle
FocusedTitleStyle	TesseraStyle
FocusMarker	string
HoveredItemStyle	TesseraStyle
InfoItemStyle	TesseraStyle
IsDisabled	bool
IsFocused	bool
IsReadOnly	bool
ItemStyle	TesseraStyle
MaxItems	int
MutedItemStyle	TesseraStyle
Padding	Thickness
SelectedItemStyle	TesseraStyle
ShowFocusMarker	bool
ShowTimestamp	bool
SuccessItemStyle	TesseraStyle
Title	string
TitleStyle	TesseraStyle
UnreadItemStyle	TesseraStyle
WarningItemStyle	TesseraStyle

Public events

Event	Type
SelectionChanged	EventHandler<ListSelectionChangedEventArgs<InboxItem>>?

Related docs

• Widget Reference
• Widgets Overview
• Public API Inventory