Struct html_sys::forms::OptionGroup

#[non_exhaustive]
pub struct OptionGroup {
    pub disabled: bool,
    pub label: Option<Cow<'static, str>>,
    /* private fields */
}

The HTML <optgroup> element

MDN Documentation

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

disabled: bool

Whether the form control is disabled

label: Option<Cow<'static, str>>

User-visible label

Trait Implementations

impl Clone for OptionGroup

fn clone(&self) -> OptionGroup

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OptionGroup

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for OptionGroup

fn default() -> OptionGroup

Returns the “default value” for a type.

impl Deref for OptionGroup

type Target = GlobalAttributes

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for OptionGroup

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl Display for OptionGroup

fn fmt(&self, writer: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq<OptionGroup> for OptionGroup

fn eq(&self, other: &OptionGroup) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<OptionGroup> for OptionGroup

fn partial_cmp(&self, other: &OptionGroup) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl RenderElement for OptionGroup

fn write_opening_tag<W: Write>(&self, writer: &mut W) -> Result

Write the opening tag to a writer.

fn write_closing_tag<W: Write>(&self, writer: &mut W) -> Result

Write the closing tag to a writer, if one is available.

impl StructuralPartialEq for OptionGroup