turbogui-angular/main/view/forms/ValidatorsPlus.d.ts

A library that tries to help with the most common user interface elements on several frameworks and platforms

/**
 * TurboGUI is A library that helps with the most common and generic UI elements and functionalities
 *
 * Website : -> http://www.turbogui.org
 * License : -> Licensed under the Apache License, Version 2.0. You may not use this file except in compliance with the License.
 * License Url : -> http://www.apache.org/licenses/LICENSE-2.0
 * CopyRight : -> Copyright 2018 Edertone Advanded Solutions. https://www.edertone.com
 */
import { FormControl, ValidationErrors, ValidatorFn, Validators } from '@angular/forms';
/**
 * Validation class that extends the base angular Form Validators class and adds extra useful validators
 */
export declare class ValidatorsPlus extends Validators {
    /**
     * Verify that the data of a form value is required and also Not semantically empty, just like the
     * TurboCommons StringUtils.isEmpty method does
     */
    static nonEmpty(control: FormControl): ValidationErrors | null;
    /**
     * Validator to check that at least one of the specified form controls has a non empty value.
     * Non empty criteria is the same as the nonEmpty validator on this same class, which verifies that the value is not semantically empty.
     *
     * To use this validator, you need to pass an array of control names that you want to check. And set it to the validators property
     * of the form builder group.
     *
     * @param controlNames An array of control names to check. For example, ['name', 'surname'].
     *
     * @returns A validator function.
     */
    static atLeastOneIsNotEmpty(controlNames: string[]): ValidatorFn;
}
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