Trait GroupFooter 

pub trait GroupFooter:
    Send
    + Sync
    + 'static {
    // Required method
    fn has_footer(&self, group: &GroupInfo<'_>) -> bool;
}

Which groups have a footer row under their rows. Called in the background, once per group.

Required Methods

fn has_footer(&self, group: &GroupInfo<'_>) -> bool

Returns true if group has a footer.

Implementors

impl GroupFooter for EveryGroupFooter

impl GroupFooter for NoGroupFooter