Class CdkColumnDef

src/cdk/table/cell.ts:67–172

 */
@Directive({selector: '[cdkColumnDef]'})
export class CdkColumnDef implements CanStick {
  _table? = inject(CDK_TABLE, {optional: true});

  private _hasStickyChanged = false;

  /** Unique name for this column. */
  @Input('cdkColumnDef')
  get name(): string {
    return this._name;
  }
  set name(name: string) {
    this._setNameInput(name);
  }
  protected _name!: string;

  /** Whether the cell is sticky. */
  @Input({transform: booleanAttribute})
  get sticky(): boolean {
    return this._sticky;
  }
  set sticky(value: boolean) {
    if (value !== this._sticky) {
      this._sticky = value;
      this._hasStickyChanged = true;
    }
  }
  private _sticky = false;

  /**
   * Whether this column should be sticky positioned on the end of the row. Should make sure
   * that it mimics the `CanStick` mixin such that `_hasStickyChanged` is set to true if the value
   * has been changed.
   */
  @Input({transform: booleanAttribute})
  get stickyEnd(): boolean {
    return this._stickyEnd;
  }
  set stickyEnd(value: boolean) {
    if (value !== this._stickyEnd) {
      this._stickyEnd = value;
      this._hasStickyChanged = true;
    }
  }
  _stickyEnd: boolean = false;

  /** @docs-private */
  @ContentChild(CdkCellDef) cell!: CdkCellDef;

  /** @docs-private */
  @ContentChild(CdkHeaderCellDef) headerCell!: CdkHeaderCellDef;

  /** @docs-private */
  @ContentChild(CdkFooterCellDef) footerCell!: CdkFooterCellDef;

  /**
   * Transformed version of the column name that can be used as part of a CSS classname. Excludes
   * all non-alphanumeric characters and the special characters '-' and '_'. Any characters that
   * do not match are replaced by the '-' character.