Pass data from parent to child via selectors on click event












0















I have a parent-child component relationship. I want to pass data from the parent to child continuously on click of a button.



parent.componet.ts



 data = '';
change(){
data = 'new data';
}


parent.component.html



  <child [parent_data]='data'></child>
<button (click)="change()">Change</button>


child.component.ts



  @Input() parent_data = '';


child.componet.ts



   {{parent_data}}


Once the child component is loaded via selector, the change don't seem to have an effect or the child component is not aware of it. I was under the impression after a change of data, child component auto knows the changes.



How do I pass new data to the child from the parent once it is loaded?










share|improve this question



























    0















    I have a parent-child component relationship. I want to pass data from the parent to child continuously on click of a button.



    parent.componet.ts



     data = '';
    change(){
    data = 'new data';
    }


    parent.component.html



      <child [parent_data]='data'></child>
    <button (click)="change()">Change</button>


    child.component.ts



      @Input() parent_data = '';


    child.componet.ts



       {{parent_data}}


    Once the child component is loaded via selector, the change don't seem to have an effect or the child component is not aware of it. I was under the impression after a change of data, child component auto knows the changes.



    How do I pass new data to the child from the parent once it is loaded?










    share|improve this question

























      0












      0








      0








      I have a parent-child component relationship. I want to pass data from the parent to child continuously on click of a button.



      parent.componet.ts



       data = '';
      change(){
      data = 'new data';
      }


      parent.component.html



        <child [parent_data]='data'></child>
      <button (click)="change()">Change</button>


      child.component.ts



        @Input() parent_data = '';


      child.componet.ts



         {{parent_data}}


      Once the child component is loaded via selector, the change don't seem to have an effect or the child component is not aware of it. I was under the impression after a change of data, child component auto knows the changes.



      How do I pass new data to the child from the parent once it is loaded?










      share|improve this question














      I have a parent-child component relationship. I want to pass data from the parent to child continuously on click of a button.



      parent.componet.ts



       data = '';
      change(){
      data = 'new data';
      }


      parent.component.html



        <child [parent_data]='data'></child>
      <button (click)="change()">Change</button>


      child.component.ts



        @Input() parent_data = '';


      child.componet.ts



         {{parent_data}}


      Once the child component is loaded via selector, the change don't seem to have an effect or the child component is not aware of it. I was under the impression after a change of data, child component auto knows the changes.



      How do I pass new data to the child from the parent once it is loaded?







      angular6






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      share|improve this question











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      share|improve this question










      asked Nov 25 '18 at 23:56









      Nie SelamNie Selam

      485417




      485417
























          1 Answer
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          I have tried to reproduce your problem as below plnkr. But it is working fine as expected.



          https://plnkr.co/edit/WoZZnb9CKSEaqP08HrxI?p=preview



          <child [parent_data]='data'></child>
          <button (click)="change()">Change</button>


          For more information about two way data binding please check



          https://medium.com/@preethi.s/angular-custom-two-way-data-binding-3e618309d6c7






          share|improve this answer























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            1 Answer
            1






            active

            oldest

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            active

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            active

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            0














            I have tried to reproduce your problem as below plnkr. But it is working fine as expected.



            https://plnkr.co/edit/WoZZnb9CKSEaqP08HrxI?p=preview



            <child [parent_data]='data'></child>
            <button (click)="change()">Change</button>


            For more information about two way data binding please check



            https://medium.com/@preethi.s/angular-custom-two-way-data-binding-3e618309d6c7






            share|improve this answer




























              0














              I have tried to reproduce your problem as below plnkr. But it is working fine as expected.



              https://plnkr.co/edit/WoZZnb9CKSEaqP08HrxI?p=preview



              <child [parent_data]='data'></child>
              <button (click)="change()">Change</button>


              For more information about two way data binding please check



              https://medium.com/@preethi.s/angular-custom-two-way-data-binding-3e618309d6c7






              share|improve this answer


























                0












                0








                0







                I have tried to reproduce your problem as below plnkr. But it is working fine as expected.



                https://plnkr.co/edit/WoZZnb9CKSEaqP08HrxI?p=preview



                <child [parent_data]='data'></child>
                <button (click)="change()">Change</button>


                For more information about two way data binding please check



                https://medium.com/@preethi.s/angular-custom-two-way-data-binding-3e618309d6c7






                share|improve this answer













                I have tried to reproduce your problem as below plnkr. But it is working fine as expected.



                https://plnkr.co/edit/WoZZnb9CKSEaqP08HrxI?p=preview



                <child [parent_data]='data'></child>
                <button (click)="change()">Change</button>


                For more information about two way data binding please check



                https://medium.com/@preethi.s/angular-custom-two-way-data-binding-3e618309d6c7







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 26 '18 at 4:19









                Hardik PatelHardik Patel

                2,32511530




                2,32511530
































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