import Field, { FieldProps, ViewModelFieldWidgetProps } from './Field';
/**
 * @expandproperties
 */
export declare type CharFieldProps = FieldProps<string> & {
    /**
     * The maximum length of the string that should be accepted.
     *
     * This can be used by form widgets to enforce a maximum length.
     */
    maxLength?: number;
};
/**
 * Base class for any string based fields (see above for more specific fields).
 *
 * This class accepts all the props of [Field](doc:Field) as well as the optional
 * `maxLength` property which can be used by form widgets to limit the accepted
 * length of the inputted text.
 *
 * <Usage>
 * Use with [viewModelFactory](doc:viewModelFactory).
 *
 * ```js
 * viewModelFactory({
 *   id: new Field(),
 *   fullName: new CharField(),
 * }, { pkFieldName: 'id' });
 * ```
 *
 * Optionally provide `maxLength` or any options from [Field](doc:Field):
 *
 * ```js
 * viewModelFactory({
 *   id: new Field(),
 *   fullName: new CharField({
 *     maxLength: 50,
 *     helpText: 'Enter name in 50 characters or less'
 *   }),
 * }, { pkFieldName: 'id' });
 * ```
 * </Usage>
 *
 * @extractdocs
 * @menugroup Fields
 */
export default class CharField extends Field<string> {
    static fieldClassName: string;
    maxLength?: number;
    constructor(values?: CharFieldProps);
    getWidgetProps(): ViewModelFieldWidgetProps & {
        maxLength?: number;
    };
}