get fiels's content

[Thierryg]

Hi,

Using a navigation view, i have added fields to a view and a (submit button) :

{
                    title: 'LiveSum',
                    layout: 'vbox',
                    padding: 10,
                    items:
                    [
                        // ----- Live profile's name -----
                        {
                           xtype:      'textfield',
                           id:         'liveprofilename',
                           name:       'liveprofilename',
                           label:      _strings_live_name[dmngConfig.deviceLanguageID],
                           labelAlign: 'left',
                           labelWidth: '45%',
                           value:      localStorage['liveprofileName'],
                           maxLength:  10,
                           allowBlank: false,
                           readOnly:   true
                        },
                        // ----- Autorecord -----
                        {
                           xtype:      'togglefield',
                           id:         'autorecord',
                           name:       'autorecord',
                           label:      _strings_live_autorecord[dmngConfig.deviceLanguageID],
                           labelAlign: 'left',
                           labelWidth: '45%',
                           value:      false,
                        },
                        // ----- Video input -----
                        /*{
                            xtype:        'selectfield',
                            id:           'videoinput',
                            name:         'videoinput',
                            label:        _strings_live_videoinput[dmngConfig.deviceLanguageID],
                            labelAlign:   'left',
                            labelWidth:   '45%',
                            valueField:   'id',
                            displayField: 'name',
                            store:        VideoInputStore
                        },*/
                        // ----- Studio -----
                        {
                            xtype:        'selectfield',
                            id:           'studio',
                            name:         'studio',
                            label:        _strings_live_studio[dmngConfig.deviceLanguageID],
                            labelAlign:   'left',
                            labelWidth:   '45%',
                            valueField:   'id',
                            displayField: 'name',
                            store:        StudioStore
                        },
                        // ----- Live channel -----
                        {
                           xtype:      'numberfield',
                           id:         'channel',
                           name:       'channel',
                           label:      _strings_live_channel[dmngConfig.deviceLanguageID],
                           labelAlign: 'left',
                           labelWidth: '45%',
                           value:      '12',
                           maxLength:  5,
                           allowBlank: false,
                           readOnly:   true 
                        },
                        // ----- Start live button -----
                        {
                            xtype: 'button',
                            text:  _strings_live_start[dmngConfig.deviceLanguageID],
                            handler: function()
                            {
                                // read the parameters
                                
                                // send the the startLive using a JsonRPC call...
                                
                                // Switch to the live run view
                                liveview.push(3);
                            }
                        }

The button well work, but i wanna know the more efficient way to get the value of each field.

Indeed, i want to valid the form by my own before to do something else.

Thanks you for your reply

Regards

[mitchellsimoens]

If the fields are in a form you can use the getValues method to get all the values.

[Thierryg]

Hi,

No they are not.

So the only (best) way if to get the object using their id right as the dom function getelementbyid(). In sencha touch 2 i have used the getCmp() function

val myfield = listview.getCmp('idfield').getvalue();

is it correct ?

Thanks in advance.

Regards.

[rdougan]

Correct. It is also the most performant way.

[mitchellsimoens]

Correct. It is also the most performant way.

It may be the most "performant' way but not the "best" way. Using id is a crutch and ask any veteran ST/Ext JS application developer about the id usage and they will flat out tell you they don't use it.

[Thierryg]

Hi,

Okay, if this is the best way, what do you suggest to do, in order to solve my need ?

I agree, id are native to the dom and they are interesting if we are using direct dom access.

Sencha Touch #2, is a framework above the dom and define some objects.

Futhermore, if make introspection on objects, i have seen that sometimes some objects can hide others.

I have to be careful if i start to work with ids.

Thanks i advance of your reply

Regards

[rdougan]

It may be the most "performant' way but not the "best" way. Using id is a crutch and ask any veteran ST/Ext JS application developer about the id usage and they will flat out tell you they don't use it.

Sure, but again, it isn't the most performant way; and on mobile devices we are seeing this more and more, especially on Android. While ComponentQuery is amazing and very flexible, you should only use it on specific cases where you cannot use id.

Hi,

Okay, if this is the best way, what do you suggest to do, in order to solve my need ?

I agree, id are native to the dom and they are interesting if we are using direct dom access.

Sencha Touch #2, is a framework above the dom and define some objects.

Futhermore, if make introspection on objects, i have seen that sometimes some objects can hide others.

I have to be careful if i start to work with ids.

Thanks i advance of your reply

Regards

All you have to remember is that id's are unique. You can only use them once; it's as simple as that. They are not connected to the DOM in a way that the developer has to worry.