angular-docs-cn/public/docs/js/latest/api/forms/ControlArray-class.jade

p.location-badge.
  exported from <a href="/angular2/forms.html">angular2/forms</a>
  defined in <a href="https://github.com/angular/angular/tree/master/modules/angular2/src/forms/model.js#L219">angular2/src/forms/model.js (line 219)</a>

:markdown
  Defines a part of a form, of variable length, that can contain other controls.
  
  A `ControlArray` aggregates the values and errors of each <a href="Control-class.html"><code>Control</code></a> in the group. Thus, if one of the controls 
  in a group is invalid, the entire group is invalid. Similarly, if a control changes its value, the entire group 
  changes as well.
  
  `ControlArray` is one of the three fundamental building blocks used to define forms in Angular, along with 
  <a href="Control-class.html"><code>Control</code></a> and <a href="ControlGroup-class.html"><code>ControlGroup</code></a>. <a href="ControlGroup-class.html"><code>ControlGroup</code></a> can also contain other controls, but is of fixed 
  length.
  
.l-main-section
  h2 Members
  .l-sub-section
    h3 constructor

    
    pre.prettyprint
      code.
        constructor(controls:List&lt;AbstractControl&gt;, validator:Function = Validators.array)
    
    :markdown
      




  .l-sub-section
    h3 at

    
    pre.prettyprint
      code.
        at(index:number)
    
    :markdown
      





  .l-sub-section
    h3 controls

    
    :markdown
      





  .l-sub-section
    h3 insert

    
    pre.prettyprint
      code.
        insert(index:number, control:AbstractControl)
    
    :markdown
      





  .l-sub-section
    h3 length

    
    :markdown
      





  .l-sub-section
    h3 push

    
    pre.prettyprint
      code.
        push(control:AbstractControl)
    
    :markdown
      





  .l-sub-section
    h3 removeAt

    
    pre.prettyprint
      code.
        removeAt(index:number)
    
    :markdown