Timeline

Family: Data & Inspection
Namespace: Tessera.Controls

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

When to use

• You need a Timeline-style interaction inside the data & inspection 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 Timeline
{
    Title = "Timeline"
};

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

Common pitfalls

• Do not choose Timeline by name only; validate it against the target workflow.
• Keep this control scoped to the data & inspection 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
ContentStyle	TesseraStyle
DisabledStyle	TesseraStyle
FocusedBorderStyleText	TesseraStyle
FocusedTitleStyle	TesseraStyle
FocusMarker	string
IsDisabled	bool
IsFocused	bool
IsReadOnly	bool
LabelStyle	TesseraStyle
MutedStyle	TesseraStyle
Padding	Thickness
PageSize	int
SelectedRowStyle	TesseraStyle
Separator	string
SeparatorStyle	TesseraStyle
ShowFocusMarker	bool
TimestampStyle	TesseraStyle
Title	string
TitleStyle	TesseraStyle

Public events

Event	Type
SelectionChanged	EventHandler<TimelineSelectionChangedEventArgs>?

Related docs

• Widget Reference
• Widgets Overview
• Public API Inventory