Struct ColumnDef 

pub struct ColumnDef<T> {
    pub meta: ColumnMeta,
    pub accessor: Option<DataTableDynAccessor<T>>,
    pub sorting_fn: Option<SortingFn<T>>,
    pub filter_fn: Option<FilterFn<T>>,
    pub aggregation_fn: Option<AggregationFn<T>>,
    pub columns: Vec<ColumnDef<T>>,
    pub enable_multi_sort: bool,
    pub invert_sorting: bool,
    pub sort_undefined_last: bool,
}

Definition of a table column.

ColumnDef is generic over the row data type T and provides all configuration needed to display and interact with a column.

Fields

meta: ColumnMeta

Column metadata (ID, header, footer, etc.).

accessor: Option<DataTableDynAccessor<T>>

Accessor function to get the cell value from row data.

sorting_fn: Option<SortingFn<T>>

Custom sorting function.

filter_fn: Option<FilterFn<T>>

Custom filter function.

aggregation_fn: Option<AggregationFn<T>>

Aggregation function for grouped rows.

columns: Vec<ColumnDef<T>>

Child columns for grouped columns.

enable_multi_sort: bool

Enable multi-sorting for this column.

invert_sorting: bool

Invert the sort direction.

sort_undefined_last: bool

Sort undefined values to the end.

Implementations

impl<T> ColumnDef<T>

pub fn new(id: impl Into<ColumnId>, header: impl Into<String>) -> Self

Creates a new column definition with the given ID and header.

Parameters

• id: The column identifier.
• header: The display header text.

Returns

• ColumnDef<T>: A new column definition with default settings.

pub fn group( id: impl Into<ColumnId>, header: impl Into<String>, columns: Vec<ColumnDef<T>>, ) -> Self

Creates a group column with child columns.

Parameters

• id: The column identifier.
• header: The display header text.
• columns: The child column definitions.

Returns

• ColumnDef<T>: A new group column definition.

pub fn id(&self) -> &ColumnId

Returns the column ID.

Returns

• &ColumnId: A reference to the column identifier.

pub fn header(&self) -> &str

Returns the column header text.

Returns

• &str: The column header text.

pub fn is_sortable(&self) -> bool

Returns whether this column is sortable.

Returns

• bool: Whether sorting is enabled for this column.

pub fn is_filterable(&self) -> bool

Returns whether this column is filterable.

Returns

• bool: Whether filtering is enabled for this column.

pub fn is_group(&self) -> bool

Returns whether this column is a group column.

Returns

• bool: Whether this is a group column containing sub-columns.

pub fn children(&self) -> &[ColumnDef<T>]

Returns the child columns for group columns.

Returns

• &[ColumnDef<T>]: A slice of child column definitions.

pub fn get_value(&self, row: &T) -> Option<Box<dyn DataTableDynValue>>

Gets the value from the row using the accessor.

Parameters

• row: The row data to extract the value from.

Returns

• Option<Box<dyn DataTableDynValue>>: The extracted value, or None if no accessor is set.

pub fn flatten(&self) -> Vec<&ColumnDef<T>>

Flattens the column hierarchy into a list of leaf columns.

Returns

• Vec<&ColumnDef<T>>: A vector of references to leaf columns.

pub fn all_ids(&self) -> Vec<ColumnId>

Returns all column IDs including nested columns.

Returns

• Vec<ColumnId>: A vector of all column IDs in the hierarchy.

Trait Implementations

impl<T> Debug for ColumnDef<T>

Formats the column definition for debug output.

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

Formats the value using the given formatter.