NativeScript core TextField onTextChange in model and outside model











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I´m using NativeScript 5.0 core and it seems that there's no method to do textChange events on textfields. My idea is something like this:



<TextField class="width90" text="{{ productPrize }}" editable="true" textChange="{{ onTexTextChange }}"/>


and in js side:



exports.onReSonTexTextChangecanPrize = function (args) {
alert(test);
};


this sintax works fine for me in "tap" events, but i read something like there's no method for doing that o NativeScript core 5.0.



I found a method in NativeScript doc doing this stuff in module:



const observableModule = require("tns-core-modules/data/observable");

function HomeViewModel() {
const viewModel = observableModule.fromObject({
productCode: "",
productPrize: ""
});

viewModel.addEventListener(observableModule.Observable.propertyChangeEvent, (args) => {
// args is of type PropertyChangeData
console.log("propertyChangeEvent [eventName]: ", args.eventName);
console.log("propertyChangeEvent [propertyName]: ", args.propertyName);
console.log("propertyChangeEvent [value]: ", args.value);
console.log("propertyChangeEvent [oldValue]: ", args.oldValue);
console.log("propertyChangeEvent [object]: ", args.object);
});


return viewModel;
}

module.exports = HomeViewModel;


I'm getting the logs correctly, but I don't know how to export the correspondant value to the model.



I have this code for conecting to the view:



const HomeViewModel = require("./home-view-model");

exports.onNavigatingTo = function(args) {
page = args.object;
mv = page.bindingContext = new HomeViewModel();
};


I wanted to know how can I do this like the example, but it will be interesting to know how could it be developed on module too.










share|improve this question


























    up vote
    0
    down vote

    favorite












    I´m using NativeScript 5.0 core and it seems that there's no method to do textChange events on textfields. My idea is something like this:



    <TextField class="width90" text="{{ productPrize }}" editable="true" textChange="{{ onTexTextChange }}"/>


    and in js side:



    exports.onReSonTexTextChangecanPrize = function (args) {
    alert(test);
    };


    this sintax works fine for me in "tap" events, but i read something like there's no method for doing that o NativeScript core 5.0.



    I found a method in NativeScript doc doing this stuff in module:



    const observableModule = require("tns-core-modules/data/observable");

    function HomeViewModel() {
    const viewModel = observableModule.fromObject({
    productCode: "",
    productPrize: ""
    });

    viewModel.addEventListener(observableModule.Observable.propertyChangeEvent, (args) => {
    // args is of type PropertyChangeData
    console.log("propertyChangeEvent [eventName]: ", args.eventName);
    console.log("propertyChangeEvent [propertyName]: ", args.propertyName);
    console.log("propertyChangeEvent [value]: ", args.value);
    console.log("propertyChangeEvent [oldValue]: ", args.oldValue);
    console.log("propertyChangeEvent [object]: ", args.object);
    });


    return viewModel;
    }

    module.exports = HomeViewModel;


    I'm getting the logs correctly, but I don't know how to export the correspondant value to the model.



    I have this code for conecting to the view:



    const HomeViewModel = require("./home-view-model");

    exports.onNavigatingTo = function(args) {
    page = args.object;
    mv = page.bindingContext = new HomeViewModel();
    };


    I wanted to know how can I do this like the example, but it will be interesting to know how could it be developed on module too.










    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I´m using NativeScript 5.0 core and it seems that there's no method to do textChange events on textfields. My idea is something like this:



      <TextField class="width90" text="{{ productPrize }}" editable="true" textChange="{{ onTexTextChange }}"/>


      and in js side:



      exports.onReSonTexTextChangecanPrize = function (args) {
      alert(test);
      };


      this sintax works fine for me in "tap" events, but i read something like there's no method for doing that o NativeScript core 5.0.



      I found a method in NativeScript doc doing this stuff in module:



      const observableModule = require("tns-core-modules/data/observable");

      function HomeViewModel() {
      const viewModel = observableModule.fromObject({
      productCode: "",
      productPrize: ""
      });

      viewModel.addEventListener(observableModule.Observable.propertyChangeEvent, (args) => {
      // args is of type PropertyChangeData
      console.log("propertyChangeEvent [eventName]: ", args.eventName);
      console.log("propertyChangeEvent [propertyName]: ", args.propertyName);
      console.log("propertyChangeEvent [value]: ", args.value);
      console.log("propertyChangeEvent [oldValue]: ", args.oldValue);
      console.log("propertyChangeEvent [object]: ", args.object);
      });


      return viewModel;
      }

      module.exports = HomeViewModel;


      I'm getting the logs correctly, but I don't know how to export the correspondant value to the model.



      I have this code for conecting to the view:



      const HomeViewModel = require("./home-view-model");

      exports.onNavigatingTo = function(args) {
      page = args.object;
      mv = page.bindingContext = new HomeViewModel();
      };


      I wanted to know how can I do this like the example, but it will be interesting to know how could it be developed on module too.










      share|improve this question













      I´m using NativeScript 5.0 core and it seems that there's no method to do textChange events on textfields. My idea is something like this:



      <TextField class="width90" text="{{ productPrize }}" editable="true" textChange="{{ onTexTextChange }}"/>


      and in js side:



      exports.onReSonTexTextChangecanPrize = function (args) {
      alert(test);
      };


      this sintax works fine for me in "tap" events, but i read something like there's no method for doing that o NativeScript core 5.0.



      I found a method in NativeScript doc doing this stuff in module:



      const observableModule = require("tns-core-modules/data/observable");

      function HomeViewModel() {
      const viewModel = observableModule.fromObject({
      productCode: "",
      productPrize: ""
      });

      viewModel.addEventListener(observableModule.Observable.propertyChangeEvent, (args) => {
      // args is of type PropertyChangeData
      console.log("propertyChangeEvent [eventName]: ", args.eventName);
      console.log("propertyChangeEvent [propertyName]: ", args.propertyName);
      console.log("propertyChangeEvent [value]: ", args.value);
      console.log("propertyChangeEvent [oldValue]: ", args.oldValue);
      console.log("propertyChangeEvent [object]: ", args.object);
      });


      return viewModel;
      }

      module.exports = HomeViewModel;


      I'm getting the logs correctly, but I don't know how to export the correspondant value to the model.



      I have this code for conecting to the view:



      const HomeViewModel = require("./home-view-model");

      exports.onNavigatingTo = function(args) {
      page = args.object;
      mv = page.bindingContext = new HomeViewModel();
      };


      I wanted to know how can I do this like the example, but it will be interesting to know how could it be developed on module too.







      javascript events nativescript






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      share|improve this question










      asked Nov 22 at 14:42









      Noark

      79112




      79112
























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          up vote
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          down vote



          accepted










          Finally I found a method, but I don't know if it's a "clean" solution or if there is a better solution:



          page.getViewById("texFieldId").addEventListener("textChange", function(args){
          console.log("text changed");
          })





          share|improve this answer

















          • 1




            That's the solution, property change events doesn't work from XML.
            – Manoj
            Nov 22 at 15:43










          • perfect, lots of thanks. that confirmation helps me a lot.
            – Noark
            Nov 22 at 15:53











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          1 Answer
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          oldest

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          0
          down vote



          accepted










          Finally I found a method, but I don't know if it's a "clean" solution or if there is a better solution:



          page.getViewById("texFieldId").addEventListener("textChange", function(args){
          console.log("text changed");
          })





          share|improve this answer

















          • 1




            That's the solution, property change events doesn't work from XML.
            – Manoj
            Nov 22 at 15:43










          • perfect, lots of thanks. that confirmation helps me a lot.
            – Noark
            Nov 22 at 15:53















          up vote
          0
          down vote



          accepted










          Finally I found a method, but I don't know if it's a "clean" solution or if there is a better solution:



          page.getViewById("texFieldId").addEventListener("textChange", function(args){
          console.log("text changed");
          })





          share|improve this answer

















          • 1




            That's the solution, property change events doesn't work from XML.
            – Manoj
            Nov 22 at 15:43










          • perfect, lots of thanks. that confirmation helps me a lot.
            – Noark
            Nov 22 at 15:53













          up vote
          0
          down vote



          accepted







          up vote
          0
          down vote



          accepted






          Finally I found a method, but I don't know if it's a "clean" solution or if there is a better solution:



          page.getViewById("texFieldId").addEventListener("textChange", function(args){
          console.log("text changed");
          })





          share|improve this answer












          Finally I found a method, but I don't know if it's a "clean" solution or if there is a better solution:



          page.getViewById("texFieldId").addEventListener("textChange", function(args){
          console.log("text changed");
          })






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 22 at 15:39









          Noark

          79112




          79112








          • 1




            That's the solution, property change events doesn't work from XML.
            – Manoj
            Nov 22 at 15:43










          • perfect, lots of thanks. that confirmation helps me a lot.
            – Noark
            Nov 22 at 15:53














          • 1




            That's the solution, property change events doesn't work from XML.
            – Manoj
            Nov 22 at 15:43










          • perfect, lots of thanks. that confirmation helps me a lot.
            – Noark
            Nov 22 at 15:53








          1




          1




          That's the solution, property change events doesn't work from XML.
          – Manoj
          Nov 22 at 15:43




          That's the solution, property change events doesn't work from XML.
          – Manoj
          Nov 22 at 15:43












          perfect, lots of thanks. that confirmation helps me a lot.
          – Noark
          Nov 22 at 15:53




          perfect, lots of thanks. that confirmation helps me a lot.
          – Noark
          Nov 22 at 15:53


















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