jqwidgets-framework/demos/angular/app/form/events/app.component.ts

jQWidgets is an advanced jQuery, Angular, React, ASP .NET MVC, Custom Elements and HTML5 UI framework.

import { Component, ViewChild, AfterViewInit, ElementRef } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: 'app.component.html'
})

export class AppComponent implements AfterViewInit {
    @ViewChild('formEvents') formEvents: ElementRef;

    ngAfterViewInit(): void {
    }

	 columns: Array<jqwidgets.FormTemplateItem> = [
          {
            columnWidth: '140px',
            bind: 'checkboxValue1',
            type: 'boolean',
            label: 'Checkbox 1',
            labelPosition: 'right',
            align: 'left',
            labelPadding: {left: 0, top: 5, right: 0, bottom: 5}
          },
          {
            columnWidth: '140px',
            bind: 'checkboxValue2',
            type: 'boolean',
            label: 'Checkbox 2',
            labelPosition: 'right',
            align: 'left',
            labelPadding: {left: 0, top: 5, right: 0, bottom: 5}
          },
          {
            columnWidth: '140px',
            bind: 'checkboxValue3',
            type: 'boolean',
            label: 'Checkbox 3',
            labelPosition: 'right',
            align: 'left',
            labelPadding: {left: 0, top: 5, right: 0, bottom: 5}
          }
	  ];
	  
    template: Array<jqwidgets.FormTemplateItem> = [
      {
        bind: 'textBoxValue',
        type: 'text',
        label: 'Text input',
        labelPosition: 'left',
        labelWidth: '30%',
        align: 'left',
        width: '250px',
        required: true
      },
      {
        bind: 'passwordBoxValue',
        type: 'password',
        label: 'Password input',
        labelPosition: 'left',
        labelWidth: '30%',
        align: 'left',
        width: '250px',
        required: true
      },
      {
        bind: 'nubmberBoxValue',
        type: 'number',
        label: 'Number input',
        labelPosition: 'left',
        labelWidth: '30%',
        align: 'left',
        width: '250px',
        required: true
      },
      {
        bind: 'dropdownValue',
        type: 'option',
        label: 'Drop down list',
        labelPosition: 'left',
        labelWidth: '30%',
        align: 'left',
        width: '250px',
        required: true,
        component: 'jqxDropDownList',
        options: [
          { label: 'Option 1', value: 'value1' },
          { label: 'Option 2', value: 'value2' },
          { label: 'Option 3', value: 'value3' }
        ]
      },
      {
        type: 'label',
        label: 'Radio buttons:',
        rowHeight: '40px',
      },
      {
        bind: 'radiobuttonValue',
        type: 'option',
        label: 'Radio buttons',
        labelPosition: 'right',
        columnWidth: '150px',
        align: 'left',
        //width: '15px',
        //required: true,
        optionsLayout: 'horizontal',
        options: [
          { label: 'Option 1', value: 'value1' },
          { label: 'Option 2', value: 'value2' },
          { label: 'Option 3', value: 'value3' }
        ]
      },
      {
        type: 'label',
        label: 'Boolean options / checkboxes:',
        rowHeight: '40px',
      },
      {
        columns: this.columns
        
      }
    ];

    sampleValue: any = {
      'textBoxValue': 'text box value',
      'passwordBoxValue': 'password box',
      'nubmberBoxValue': 67.44,
      'dropdownValue': 'value3',
      'radiobuttonValue': 'value2',
      'checkboxValue1': false,
      'checkboxValue2': false,
      'checkboxValue3': true,
    };

    formEventHandler(event: any): any {
      var args = event.args;
      var newValue = args.value;
      var previousValue = args.previousValue;

      var html = '<h3>Event: formdatachange</h3>';
      for (var i in newValue) {
        var newInputValue = newValue[i];

        var previousInputValue = '';
        if (previousValue && previousValue[i] !== undefined && previousValue[i] !== newValue[i]) {
          previousInputValue = ', <i>previous value</i>: <span style="color:red;">' + previousValue[i] + '</span>';
          newInputValue = '<span style="color:green;">' + newInputValue + '</span>';
        }

        html += "<b>" + i + "</b>: " + newInputValue + previousInputValue + "<br>";
      }

      this.formEvents.nativeElement.innerHTML = html;
    };
}