javascript - Finding difficulty in loading a form on click of a button -

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i have grid panel , contains add button. on clicking button, pop of form should displayed. getting error continuously. http://localhost:8080/extservlet/myapp/widget/student-form.js?_dc=1438244873178 404 (not found)

here list.js file contains grid

ext.define('myapp.view.main.list', { extend: 'ext.grid.panel', xtype: 'mainlist',  require: [ 'myapp.view.student.studentform' ], title: 'student records', scrollable: true, margin: 20, layout: {     type: 'vbox',     align: 'stretch' },  reference: 'studentgrid', frame: true, collapsible: true, store: 'studentstore', collapsible: true, columns: [     {          text: 'name',          dataindex: 'name',         flex: 1      },      {          text: 'address',          dataindex: 'address',          flex: 1      },     {          text: 'phone',          dataindex: 'phone',          flex: 1     },     {          text: 'email',         dataindex: 'email',         flex: 1     },     {          text: 'faculty',         dataindex:'faculty',         flex: 1     } ],  dockeditems: [     {         xtype: 'toolbar',         dock: 'top',         items: [             {                 xtype: 'button',                 text: 'add',                 iconcls: 'fa fa-plus',                 listeners: {                 click: 'onadd'             }             },             {                 xtype: 'button',                 text: 'edit',                 iconcls: 'fa fa-edit',                 listeners: {                     click: 'onedit'                 }             },             {                 xtype: 'button',                 text: 'delete',                 iconcls: 'fa fa-trash-o',                 listeners: {                     click: 'ondelete'                 }             }]         }     ] });

and here controller

onadd: function(button, e, options) {     this.createdialog(null); },  createdialog: function(record) {     var me = this,         view = me.getview();     debugger;     me.dialog = view.add({         xtype: 'student-form'     })     me.dialog.show(); }

and heres student form

ext.define('myapp.view.student.studentform', { extend: 'ext.window.window', alias: 'widget.student-form',  height: 270, width: 400, layout: {     type: 'fit' },  title: 'add student', closable: false, modal: true, items: [{     xtype: 'form',     reference: 'form',     bodypadding: 5,     modelvalidation : true,     layout: {         type: 'vbox',         align: 'stretch'     },     items: [{         xtype: 'fieldset',         flex: 1,         title: 'student information',         layout: 'anchor',         defaulttype: 'textfield',         defaults: {             anchor: '100%',             msgtarget: 'side',             labelwidth: '75'         },         items: [             {                 xtype: 'hiddenfield',                 name: 'id',                 fieldlabel: 'label'             },             {                 fieldlabel: 'name'             },             {                 fieldlabel: 'address'             },             {                 fieldlabel: 'phone'             },             {                 fieldlabel: 'email'             },             {                 xtype: 'combo',                 fieldlabel: 'faculty',                 displayfield: 'name',                 valuefield: 'id',                 querymode: 'local',                 forceselection: true,                 editable: false,                 name: 'faculty-id',             }         ],         dockeditems: [         {             xtype: 'toolbar',             dock: 'bottom',             layout: {                 pack: 'end',                 type: 'hbox'             },             items: [                 {                     xtype: 'button',                     text: 'save',                     iconcls: 'fa fa-check',                     listeners: {                         click: 'onsave'                     }                 },                 {                     xtype: 'button',                     text: 'cancel',                     iconcls: 'fa fa-times',                     listeners: {                         click: 'oncancel'                     }                 }             ]         }]     }] }] });

so, how can load student form pop window. suggestion?

heres error list:

get http://localhost:8080/extservlet/myapp/widget/student-form.js?_dc=1438247043981 404 (not found)

uncaught error: [ext.create] unrecognized class name / alias: widget.student-form

[e] [ext.loader] requested files failed load.

in controller's method change from:

createdialog: function(record) {     var me = this,         view = me.getview();     debugger;     me.dialog = view.add({         xtype: 'student-form'     })     me.dialog.show(); }

to:

createdialog: function(record) {     ext.createwidget('student-form'); }

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