angular - How to call ViewChild in runtime? -

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in angular2 , want find children components , declared in template in run time. how can it? example:

@component({  template: ` <cmp1 *ngif=expression></cmp1> <cmp2 *ngif=!expression></cmp2>     `  }) export class component3{  findchild(){ // how find cmp2 }  }

not sure mean "at runtime" how it's done:

@component({ template: ` <cmp1 #cmp *ngif=expression></cmp1> <cmp2 #cmp *ngif=!expression></cmp2> ` }) export class component3{    @viewchildren('cmp') cmp:querylist;    findchild(){     return this.cmp.toarray()[0];   } }

component1 needs imported.

see angular 2 / typescript : hold of element in template


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