DataForm<TModel>

Family: Inputs & Forms
Namespace: Tessera.Controls

Use DataForm<TModel> when this interaction is the best match for your screen workflow.

When to use

• You need a DataForm-style interaction inside the inputs & forms 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 DataForm<TModel>
{
    Title = "DataForm"
};

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

Common pitfalls

• Do not choose DataForm by name only; validate it against the target workflow.
• Keep this control scoped to the inputs & forms 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
DisabledStyle	TesseraStyle
EditBuffer	string
EmptyText	string
ErrorStyle	TesseraStyle
FieldSeparatorText	string
FocusedBorderStyleText	TesseraStyle
FocusedSelectedFieldStyle	TesseraStyle
FocusedTitleStyle	TesseraStyle
FocusMarker	string
HoveredFieldStyle	TesseraStyle
IsDisabled	bool
IsEditing	bool
IsFocused	bool
IsReadOnly	bool
LabelStyle	TesseraStyle
LastCommitError	string
MaxLabelWidth	int
Model	TModel?
NoModelText	string
Padding	Thickness
PlaceholderStyle	TesseraStyle
ReadOnlyFieldStyle	TesseraStyle
SelectedFieldStyle	TesseraStyle
SelectedIndex	int
SelectedMarker	string
ShowFocusMarker	bool
Title	string
TitleStyle	TesseraStyle
UnselectedMarker	string
ValueStyle	TesseraStyle

Public events

Event	Type
FieldCommitted	EventHandler<DataFormFieldCommittedEventArgs<TModel>>?
SelectionChanged	EventHandler<DataFormSelectionChangedEventArgs<TModel>>?

Related docs

• Widget Reference
• Widgets Overview
• Public API Inventory