2019独角兽企业重金招聘Python工程师标准>>> 
之前5月学习Yii2的时候发现的一个不错的博客内容，这里转载保存。
- Use the namespace For ActiveForm
- Active Form Begin And End
- Text Input Field
- TextArea Field
- Password Input Field
- HTML5 Email Input Field
- File Upload
- Checkbox Button Field
- Checkbox List Input Field
- Radio Button Field
- Radio Button List Field
- ListBox Field
- dropDown List Input Field
- Submit Button
‘yii\widgets\ActiveForm’ class is used to create a form and ‘yii\helpers\Html’ class is used to display the different type of HTML input fields like buttons, textbox, select box etc.
ActiveForm::begin() - creates a form instance and beginning of the form.
ActiveForm::begin() and ActiveForm::end() - All of the content placed between this.
Use the namespace For ActiveForm
| 3 | use yii\widgets\ActiveForm; |
‘ActiveForm’ namespace is very important to create the a active form and ‘Html’ namespace is very useful to display the different html input fields.
Active Form Begin And End
| 03 | use yii\widgets\ActiveForm; |
| 05 | //$form = ActiveForm::begin(); //Default Active Form begin |
| 06 | $form = ActiveForm::begin([ |
| 07 | 'id' => 'active-form', |
| 09 | 'class' => 'form-horizontal', |
| 10 | 'enctype' => 'multipart/form-data' |
Here we added active form with basic details like form id, class and enctype for file uploads.
Text Input Field
| 2 | <?= $form->field($model,'name'); ?> |
| 4 | <?= $form->field($model, 'name')->textInput()->hint('Please enter your name')->label('Name') ?> |
Format 1 is a normal text input field. Format 2 is a text input field with hint, label.
TextArea Field
The model attribute value will be used as the content in the textarea.
| 1 | <?= $form->field($model, 'desc')->textarea(); ?> |
| 2 | <?= $form->field($model, 'desc')->textarea()->label('Description'); ?> |
| 3 | <?= $form->field($model, 'desc')->textarea(array('rows'=>2,'cols'=>5)); ?> |
Password Input Field
| 2 | <?= $form->field($model, 'password')->input('password') ?> |
| 4 | <?= $form->field($model, 'password')->passwordInput() ?> |
| 6 | <?= $form->field($model, 'password')->passwordInput()->hint('Password should be within A-Za-z0-9')->label('Password Hint') ?> |
We added different type of password input field like password with hint, custom lable.
HTML5 Email Input Field
| 1 | <?= $form->field($model, 'email')->input('email') ?> |
File Upload
fileInput() function is used to create a file input fields and ‘multiple’ parameter is used to upload multiple file in single upload.
Single File Upload
| 1 | <?= $form->field($model, 'uploadFile')->fileInput() ?> |
MultiFile Upload
| 1 | <?php echo $form->field($model, 'uploadFile[]')->fileInput(['multiple'=>'multiple']); ?> |
Checkbox Button Field
Using below we can create the Checkbox base on model attribute of yii2.0 framework. We added the following options like custom label, disabled, style etc
| 01 | <!-- CHECKBOX BUTTON DEFAULT LABEL --> |
| 02 | <?= $form->field($model, 'population')->checkbox(); ?> |
| 03 | <!-- CHECKBOX BUTTON WITHOUT LABEL --> |
| 04 | <?= $form->field($model, 'population')->checkbox(array('label'=>'')); ?> |
| 05 | <!-- CHECKBOX BUTTON WITH CUSTOM LABEL --> |
| 06 | <?= $form->field($model, 'population') ->checkbox(array('label'=>'')) |
| 08 | <!-- CHECKBOX BUTTON WITH LABEL OPTIONS, DISABLED AND STYLE PROPERTIES --> |
| 09 | <?= $form->field($model, 'population')->checkbox(array( |
| 11 | 'labelOptions'=>array('style'=>'padding:5px;'), |
Checkbox List Input Field
checkboxList() function is used to display the check box list using array of input argument values.
| 1 | <?php echo $form->field($model, 'name[]')->checkboxList(['a' => 'Item A', 'b' => 'Item B', 'c' =>'Item C']); ?> |
Radio Button Field
The model attribute value will be used to create the redio button.
| 01 | <!-- RADIO BUTTON DEFAULT LABEL --> |
| 02 | <?= $form->field($model, 'gender')->radio(); ?> |
| 03 | <!-- RADIO BUTTON WITHOUT LABEL --> |
| 04 | <?= $form->field($model, 'gender')->radio(array('label'=>'')); ?> |
| 05 | <!-- RADIO BUTTON WITH CUSTOM LABEL --> |
| 06 | <?= $form->field($model, 'gender') ->radio(array('label'=>'')) |
| 08 | <!-- RADIO BUTTON WITH LABEL OPTIONS --> |
| 09 | <?= $form->field($model, 'gender')->radio(array( |
| 11 | 'labelOptions'=>array('style'=>'padding:5px;'))) |
Radio Button List Field
The model attribute value will be used to create the redio button list.
| 1 | <?= $form->field($model, 'population')->radioList(array('1'=>'One',2=>'Two')); ?> |
ListBox Field
Using below we can create the list box base on model attribute of yii2.0 framework. We added the following options like prompt, size, disabled, style etc
| 01 | <!-- Listbox with prompt text --> |
| 02 | <?= $form->field($model, 'population')-> listBox( |
| 03 | array('1'=>'1',2=>'2',3=>3,4=>4,5=>5), |
| 04 | array('prompt'=>'Select') |
| 06 | <!-- Listbox with size --> |
| 07 | <?= $form->field($model, 'population')-> listBox( |
| 08 | array('1'=>'1',2=>'2',3=>3,4=>4,5=>5), |
| 09 | array('prompt'=>'Select','size'=>3) |
| 11 | <!-- Listbox with disabled, style properties --> |
| 12 | <?= $form->field($model, 'population')-> listBox( |
| 13 | array('1'=>'1',2=>'2',3=>3,4=>4,5=>5), |
| 14 | array('disabled' => true,'style'=>'background:gray;color:#fff;')) |
dropDown List Input Field
dropDownList() function is used to create HTML ‘select’ tag input field.
| 2 | <?php echo $form->field($model, 'name')->dropDownList(['a' => 'Item A', 'b' => 'Item B', 'c' => 'Item C']); ?> |
| 4 | < echo $form->field($model, 'name')->dropDownList($listData, ['prompt'=>'Choose...']);> |
Submit Button
| 1 | <?= Html::submitButton('Submit', ['class'=> 'btn btn-primary']) ;?> |
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