'Declaration Public Overridable Property TextMode As TextBoxMode
public virtual TextBoxMode TextMode {get; set;}
Setting this property to MultiLine creates TEXTAREA html element. Spin buttons and custom button in that mode are not supported.
Setting this property to Password creates INPUT with type=password and browser defines how text string is displayed.
Default value is SingleLine.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2