angular - Angular2 custom component button can not Connect to outside form -


i have problem.

my custom component has button reset formcontrolname, it's not work. custom component value rest, value not connect formcontrolname.

ex:https://plnkr.co/edit/r6bbf3?p=preview

my custom component: 

export const custom_input_control_value_accessor: = {      provide: ng_value_accessor,      useexisting: forwardref(() => custominputcomponent),      multi: true  };    @component({      selector: 'custom-input',      template: `<div class="form-group">                      <label><ng-content></ng-content>                          <input [(ngmodel)]="value"                                    class="form-control"                                   (blur)="onblur()" >                      </label>                      <button type="button" (click)="clear()">clear</button>                  </div>`,      providers: [custom_input_control_value_accessor]  })  export class custominputcomponent implements controlvalueaccessor {        private innervalue: = '';      private ontouchedcallback: () => void = noop;      private onchangecallback: (_: any) => void = noop;        //get accessor      value(): {          return this.innervalue;      };        //set accessor including call onchange callback      set value(v: any) {          if (v !== this.innervalue) {              this.innervalue = v;              this.onchangecallback(v);          }      }        //set touched on blur      onblur() {          this.ontouchedcallback();      }            clear(){         this.innervalue = '';      }        //from controlvalueaccessor interface      writevalue(value: any) {          if (value !== this.innervalue) {              this.innervalue = value;          }      }        //from controlvalueaccessor interface      registeronchange(fn: any) {          this.onchangecallback = fn;      }        //from controlvalueaccessor interface      registerontouched(fn: any) {          this.ontouchedcallback = fn;      }    }

try 

clear(){    this.innervalue = '';    this.onchangecallback(''); }

forked working plunker


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