Type alias ColumnsChangedArgs

ColumnsChangedArgs: {
    index: number;
    region: ColumnRegion;
    span: number;
    type: "columns-inserted" | "columns-removed";
}

An arguments object for the changed signal.

Data models should emit the changed signal with this args object type when columns are inserted or removed.

Readonly index: number
The index of the first modified column.
Readonly region: ColumnRegion
The region which contains the modified columns.
Readonly span: number
The number of modified columns.
Readonly type: "columns-inserted" | "columns-removed"
The discriminated type of the args object.