Form

use Filament\Schemas\Schema;
use Filament\Forms\Components\TextInput;
use Filament\Forms\Components\Select;

public static function form(Schema $schema): Schema
{
    return $schema
        ->components([
            TextInput::make('name')
                ->required(),
            Select::make('status')
                ->options([
                    'draft' => 'Draft',
                    'published' => 'Published',
                ]),
        ]);
}

Filament\Schemas\Schema

public function components(array $components): static

$schema->components([
    TextInput::make('email')->email(),
    TextInput::make('password')->password(),
]);

public function operation(string $operation): static

public function statePath(?string $path): static

public function columns(int | array $columns): static

$schema->columns([
    'sm' => 1,
    'md' => 2,
    'lg' => 3,
]);

use Filament\Forms\Components\TextInput;

TextInput::make('name')
    ->disabled(fn (string $operation): bool => $operation === 'view');

// In a resource
public static function form(Schema $schema): Schema
{
    return $schema
        ->statePath('data')
        ->components([
            TextInput::make('name'),
        ]);
}

// Data is bound to $this->data['name']

use Filament\Forms\Components\TextInput;

TextInput::make('email')
    ->required()
    ->email()
    ->maxLength(255);

use Filament\Forms\Components\TextInput;
use Filament\Forms\Get;
use Filament\Forms\Set;

TextInput::make('price')
    ->numeric()
    ->live()
    ->afterStateUpdated(function (Set $set, ?float $state) {
        $set('total', $state * 1.2);
    });

TextInput::make('total')
    ->disabled();