@rxap/form-system
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This package provides a set of directives, decorators, mixins, and validators to simplify the creation of dynamic forms in Angular applications. It offers features such as automatic control creation, data source integration, component customization, and h
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<li class="breadcrumb-item" >ExtractControlFromParentMixin</li>
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<code>src/lib/mixins/extract-control-from-parent.mixin.ts</code>
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<span class="modifier">Protected</span>
<a href="#extractControlFromParent" >extractControlFromParent</a>
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<a name="extractControlFromParent"></a>
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<span ><b>extractControlFromParent</b></span>
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<code>extractControlFromParent(parent: ControlContainer, controlPath: <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/string" target="_blank">string</a>)</code>
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<div class="io-line">Defined in <a href="" data-line="12"
class="link-to-prism">src/lib/mixins/extract-control-from-parent.mixin.ts:12</a></div>
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<td>Name</td>
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<td>Optional</td>
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<code>ControlContainer</code>
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No
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<td>controlPath</td>
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<code><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/string" target="_blank" >string</a></code>
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No
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<b>Returns : </b> <code>AbstractControl</code>
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<pre class="line-numbers compodoc-sourcecode"><code class="language-typescript">import { ControlContainer } from '@angular/forms';
import {
AbstractControl,
RxapFormArray,
RxapFormControl,
RxapFormGroup,
} from '@rxap/forms';
import { RxapFormSystemError } from '../error';
export class ExtractControlFromParentMixin {
protected extractControlFromParent(parent: ControlContainer, controlPath: string): AbstractControl {
if (!controlPath) {
throw new RxapFormSystemError('The control path is empty', '');
}
if (!parent.control) {
throw new RxapFormSystemError('The control property of ControlContainer is not defined', '');
}
const control = parent.control.get(controlPath);
if (!control) {
throw new RxapFormSystemError('Could not find the control instance', '');
}
if (!(control instanceof RxapFormControl) &&
!(control instanceof RxapFormGroup) &&
!(control instanceof RxapFormArray)) {
throw new RxapFormSystemError('The extracted control is not a RxapFormControl', '');
}
return control;
}
}
</code></pre>
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