AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.3.2" />

.NET API 465,920 bytes

HTMLOptGroupElement

public sealed class HTMLOptGroupElement : HTMLElement

Represents the HTML optgroup element.

public bool Disabled { get; set; }

Gets or sets if the optgroup is enabled or disabled.

public string Label { get; set; }

Gets or sets the label.