How to get value of input field in typescript file Angular 4

user_5734383 0
Viewed 29757
 <div id="lists">
            <table id='mytable' cellspacing='0' cellpadding='0'>
                <tr  class="row" [ngClass]="{'selected': i === selectedIndex}"  *ngFor= 'let item of list; let i = index' [attr.data-index]='i'  [ngStyle]="{'background-color': i%2 == '0' ? 'gray' : ''}">
                    <td class='default-field'>
                        <p class='para' *ngIf="selectedIndex!=i  ">{{i+1}}. {{item}}</p>
                    </td>
                    <td class="edit-field" *ngIf="selectedIndex==i   " >
                        <input type="text" class="myCl" [value]="val" >
                    </td>
                    <td class='btns'>

                    <input type='button' value='edit' class='edit-btn'  (click)='hidePara(item,i)' *ngIf="selectedIndex!=i">

                    <input type='button' value='save' class='save-btn' *ngIf="selectedIndex==i" (click)='hidePara1(item,i)'> 
                    <input type='button' value='DELETE' class='delete-btn' (click)='deleterow(i)'>
                    </td>
                </tr>
            </table>

        </div>

Above is my html code, i want to retrieve the value of input field when user click on save button, the hidePara1(item,i) function will execute, i want to get value of input field in hidepara1, how this can be possible.

 hidePara1(item,ii)
 {
  this.selectedIndex=-1;
  this.showHideP = !this.showHideP;  //for hiding paragraph
  this.tbox = !this.tbox;  //showing text box
  this.edt=!this.edt;  //hide edt button
  this.sbtn = !this.sbtn;  //display save button 

 }
angular
3 Answers

First of all you need to import FormsModule in app.modules.ts in order to use ngModel

import { FormsModule } from '@angular/forms';

Then you can use [(ngModel)] to get the value in .ts file

HTML :

<input type="text" [(ngModel)]="inputText">

TS :

inputText :string = "I am sample text";

Your code becomes : 

 <div id="lists">
            <table id='mytable' cellspacing='0' cellpadding='0'>
                <tr  class="row" [ngClass]="{'selected': i === selectedIndex}"  *ngFor= 'let item of list; let i = index' [attr.data-index]='i'  [ngStyle]="{'background-color': i%2 == '0' ? 'gray' : ''}">
                    <td class='default-field'>
                        <p class='para' *ngIf="selectedIndex!=i  ">{{i+1}}. {{item}}</p>
                    </td>
                    <td class="edit-field" *ngIf="selectedIndex==i   " >
                        <input type="text" class="myCl" [value]="val" [(ngModel)]="item.inputText">
                    </td>
                    <td class='btns'>

                    <input type='button' value='edit' class='edit-btn'  (click)='hidePara(item,i)' *ngIf="selectedIndex!=i">

                    <input type='button' value='save' class='save-btn' *ngIf="selectedIndex==i" (click)='hidePara1(item,i)'> 
                    <input type='button' value='DELETE' class='delete-btn' (click)='deleterow(i)'>
                    </td>
                </tr>
            </table>

        </div>
user_57657950

You can use following code:

 <td class="edit-field" *ngIf="selectedIndex==i" >
      <input type="text" class="myCl" [(ngModel)]="val" >
 </td>
user_37608290

value is the property of this component by using Input field.use [(ngmodel)]

<input type="text" class="myCl" [(ngmodel)]="value[i]" >

get value from input field and store the value of array by ng model method then click the save button pass array valy and parameter to save

<input type='button' value='save' class='save-btn' *ngIf="selectedIndex==i" (click)='hidePara1(value,item,i)'>

user_47260650
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