Ionic 3 Filter List












0















I'm stuck here



When I clicked the list, nothing happens and the console don't show anything. I use the search filter typescript into list filter. I'm not good in ionic especially angular js.



popular.html:



<ion-item>
<ion-select (click)="this.filterService.getYear($event)" >
<ion-option value="first">1st Year</ion-option>
<ion-option value="second">2nd Year</ion-option>
<ion-option value="third">3rd Year</ion-option>
<ion-option valur="fourth">4th Year</ion-option>
<ion-option value="fifth">5th Year</ion-option>
</ion-select>
</ion-item>


filter.ts:



getYear(searchbar, item)
{
let nav = this.app.getActiveNav();

console.log(this.posts);

this.keyboard.close();

this.initializeItems();

var q = searchbar.srcElement.value;
if (!q) {
return;
}

this.filters = this.posts.filter((value) => {

console.log(value);

if (value.data().year && q) {
if (value.data().year.toLowerCase().indexOf(q.toLowerCase()) > -1) {
return true;
}
return false;
}
});
}









share|improve this question





























    0















    I'm stuck here



    When I clicked the list, nothing happens and the console don't show anything. I use the search filter typescript into list filter. I'm not good in ionic especially angular js.



    popular.html:



    <ion-item>
    <ion-select (click)="this.filterService.getYear($event)" >
    <ion-option value="first">1st Year</ion-option>
    <ion-option value="second">2nd Year</ion-option>
    <ion-option value="third">3rd Year</ion-option>
    <ion-option valur="fourth">4th Year</ion-option>
    <ion-option value="fifth">5th Year</ion-option>
    </ion-select>
    </ion-item>


    filter.ts:



    getYear(searchbar, item)
    {
    let nav = this.app.getActiveNav();

    console.log(this.posts);

    this.keyboard.close();

    this.initializeItems();

    var q = searchbar.srcElement.value;
    if (!q) {
    return;
    }

    this.filters = this.posts.filter((value) => {

    console.log(value);

    if (value.data().year && q) {
    if (value.data().year.toLowerCase().indexOf(q.toLowerCase()) > -1) {
    return true;
    }
    return false;
    }
    });
    }









    share|improve this question



























      0












      0








      0








      I'm stuck here



      When I clicked the list, nothing happens and the console don't show anything. I use the search filter typescript into list filter. I'm not good in ionic especially angular js.



      popular.html:



      <ion-item>
      <ion-select (click)="this.filterService.getYear($event)" >
      <ion-option value="first">1st Year</ion-option>
      <ion-option value="second">2nd Year</ion-option>
      <ion-option value="third">3rd Year</ion-option>
      <ion-option valur="fourth">4th Year</ion-option>
      <ion-option value="fifth">5th Year</ion-option>
      </ion-select>
      </ion-item>


      filter.ts:



      getYear(searchbar, item)
      {
      let nav = this.app.getActiveNav();

      console.log(this.posts);

      this.keyboard.close();

      this.initializeItems();

      var q = searchbar.srcElement.value;
      if (!q) {
      return;
      }

      this.filters = this.posts.filter((value) => {

      console.log(value);

      if (value.data().year && q) {
      if (value.data().year.toLowerCase().indexOf(q.toLowerCase()) > -1) {
      return true;
      }
      return false;
      }
      });
      }









      share|improve this question
















      I'm stuck here



      When I clicked the list, nothing happens and the console don't show anything. I use the search filter typescript into list filter. I'm not good in ionic especially angular js.



      popular.html:



      <ion-item>
      <ion-select (click)="this.filterService.getYear($event)" >
      <ion-option value="first">1st Year</ion-option>
      <ion-option value="second">2nd Year</ion-option>
      <ion-option value="third">3rd Year</ion-option>
      <ion-option valur="fourth">4th Year</ion-option>
      <ion-option value="fifth">5th Year</ion-option>
      </ion-select>
      </ion-item>


      filter.ts:



      getYear(searchbar, item)
      {
      let nav = this.app.getActiveNav();

      console.log(this.posts);

      this.keyboard.close();

      this.initializeItems();

      var q = searchbar.srcElement.value;
      if (!q) {
      return;
      }

      this.filters = this.posts.filter((value) => {

      console.log(value);

      if (value.data().year && q) {
      if (value.data().year.toLowerCase().indexOf(q.toLowerCase()) > -1) {
      return true;
      }
      return false;
      }
      });
      }






      typescript ionic3






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 23 '18 at 13:41









      AS Mackay

      2,01351121




      2,01351121










      asked Nov 23 '18 at 11:03









      D.BacarisasD.Bacarisas

      32




      32
























          2 Answers
          2






          active

          oldest

          votes


















          0














          I think you need to use the ngModel data binding for this, as described in the documentation



          <ion-item>
          <ion-label>Gender</ion-label>
          <ion-select [(ngModel)]="gender">
          <ion-option value="f">Female</ion-option>
          <ion-option value="m">Male</ion-option>
          </ion-select>
          </ion-item>


          For your example, this would change to



          <ion-select [(ngModel)]=“filterService.getYear($event)”>





          share|improve this answer
























          • [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

            – D.Bacarisas
            Nov 25 '18 at 7:47











          • I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

            – D.Bacarisas
            Nov 25 '18 at 8:34



















          0














          You should be using (ionChange) instead of (click), like



          <ion-select (ionChange)="getYear($event)">


          Or probably filterService.getYear($event) in your case, although I am not a big fan of accessing services from the template.



          The getYear function will be called with the value of selected item, ie, "first", "second" etc, and hence should ideally have a single argument, instead of 2.



          Example Code/Preview






          share|improve this answer
























          • Thanks, but I think that this typescript of search filter is not applicable to the list filter.

            – D.Bacarisas
            Nov 23 '18 at 13:33












          Your Answer






          StackExchange.ifUsing("editor", function () {
          StackExchange.using("externalEditor", function () {
          StackExchange.using("snippets", function () {
          StackExchange.snippets.init();
          });
          });
          }, "code-snippets");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "1"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53445475%2fionic-3-filter-list%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          2 Answers
          2






          active

          oldest

          votes








          2 Answers
          2






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          0














          I think you need to use the ngModel data binding for this, as described in the documentation



          <ion-item>
          <ion-label>Gender</ion-label>
          <ion-select [(ngModel)]="gender">
          <ion-option value="f">Female</ion-option>
          <ion-option value="m">Male</ion-option>
          </ion-select>
          </ion-item>


          For your example, this would change to



          <ion-select [(ngModel)]=“filterService.getYear($event)”>





          share|improve this answer
























          • [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

            – D.Bacarisas
            Nov 25 '18 at 7:47











          • I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

            – D.Bacarisas
            Nov 25 '18 at 8:34
















          0














          I think you need to use the ngModel data binding for this, as described in the documentation



          <ion-item>
          <ion-label>Gender</ion-label>
          <ion-select [(ngModel)]="gender">
          <ion-option value="f">Female</ion-option>
          <ion-option value="m">Male</ion-option>
          </ion-select>
          </ion-item>


          For your example, this would change to



          <ion-select [(ngModel)]=“filterService.getYear($event)”>





          share|improve this answer
























          • [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

            – D.Bacarisas
            Nov 25 '18 at 7:47











          • I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

            – D.Bacarisas
            Nov 25 '18 at 8:34














          0












          0








          0







          I think you need to use the ngModel data binding for this, as described in the documentation



          <ion-item>
          <ion-label>Gender</ion-label>
          <ion-select [(ngModel)]="gender">
          <ion-option value="f">Female</ion-option>
          <ion-option value="m">Male</ion-option>
          </ion-select>
          </ion-item>


          For your example, this would change to



          <ion-select [(ngModel)]=“filterService.getYear($event)”>





          share|improve this answer













          I think you need to use the ngModel data binding for this, as described in the documentation



          <ion-item>
          <ion-label>Gender</ion-label>
          <ion-select [(ngModel)]="gender">
          <ion-option value="f">Female</ion-option>
          <ion-option value="m">Male</ion-option>
          </ion-select>
          </ion-item>


          For your example, this would change to



          <ion-select [(ngModel)]=“filterService.getYear($event)”>






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 24 '18 at 18:20









          JoshJosh

          161




          161













          • [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

            – D.Bacarisas
            Nov 25 '18 at 7:47











          • I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

            – D.Bacarisas
            Nov 25 '18 at 8:34



















          • [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

            – D.Bacarisas
            Nov 25 '18 at 7:47











          • I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

            – D.Bacarisas
            Nov 25 '18 at 8:34

















          [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

          – D.Bacarisas
          Nov 25 '18 at 7:47





          [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

          – D.Bacarisas
          Nov 25 '18 at 7:47













          I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

          – D.Bacarisas
          Nov 25 '18 at 8:34





          I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

          – D.Bacarisas
          Nov 25 '18 at 8:34













          0














          You should be using (ionChange) instead of (click), like



          <ion-select (ionChange)="getYear($event)">


          Or probably filterService.getYear($event) in your case, although I am not a big fan of accessing services from the template.



          The getYear function will be called with the value of selected item, ie, "first", "second" etc, and hence should ideally have a single argument, instead of 2.



          Example Code/Preview






          share|improve this answer
























          • Thanks, but I think that this typescript of search filter is not applicable to the list filter.

            – D.Bacarisas
            Nov 23 '18 at 13:33
















          0














          You should be using (ionChange) instead of (click), like



          <ion-select (ionChange)="getYear($event)">


          Or probably filterService.getYear($event) in your case, although I am not a big fan of accessing services from the template.



          The getYear function will be called with the value of selected item, ie, "first", "second" etc, and hence should ideally have a single argument, instead of 2.



          Example Code/Preview






          share|improve this answer
























          • Thanks, but I think that this typescript of search filter is not applicable to the list filter.

            – D.Bacarisas
            Nov 23 '18 at 13:33














          0












          0








          0







          You should be using (ionChange) instead of (click), like



          <ion-select (ionChange)="getYear($event)">


          Or probably filterService.getYear($event) in your case, although I am not a big fan of accessing services from the template.



          The getYear function will be called with the value of selected item, ie, "first", "second" etc, and hence should ideally have a single argument, instead of 2.



          Example Code/Preview






          share|improve this answer













          You should be using (ionChange) instead of (click), like



          <ion-select (ionChange)="getYear($event)">


          Or probably filterService.getYear($event) in your case, although I am not a big fan of accessing services from the template.



          The getYear function will be called with the value of selected item, ie, "first", "second" etc, and hence should ideally have a single argument, instead of 2.



          Example Code/Preview







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 23 '18 at 12:40









          rjvrjv

          3,23012045




          3,23012045













          • Thanks, but I think that this typescript of search filter is not applicable to the list filter.

            – D.Bacarisas
            Nov 23 '18 at 13:33



















          • Thanks, but I think that this typescript of search filter is not applicable to the list filter.

            – D.Bacarisas
            Nov 23 '18 at 13:33

















          Thanks, but I think that this typescript of search filter is not applicable to the list filter.

          – D.Bacarisas
          Nov 23 '18 at 13:33





          Thanks, but I think that this typescript of search filter is not applicable to the list filter.

          – D.Bacarisas
          Nov 23 '18 at 13:33


















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53445475%2fionic-3-filter-list%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          這個網誌中的熱門文章

          Hercules Kyvelos

          Tangent Lines Diagram Along Smooth Curve

          Yusuf al-Mu'taman ibn Hud