Magento:: Admin form Field

You'll surely get many forum of admin field in magento form. So, I'm showing you in a different way. You need to write this code in your module app/code/(local/community)/Companyname/Modulename/Block/Adminhtml/Modulename/Edit/Tab/Form.php
Find the method _prepareForm() and add which field you want to add.


How to add Text Field :

>> $fieldset->addField('fieldName', 'text', array(
          'label'     => Mage::helper('form')->__('Banner Name'),
          'class'     => 'required-entry',
          'required'  => true,        // true,false
          'name'      => 'name',
          'onclick' => "alert('add javascript if neeed');",
          'onchange' => "alert('add javascript if neeed');",
          'style'   => "width:15px",
          'value'  => 'Default value',
          'disabled' => false,        // true,false
          'readonly' => true,        // true,false
          'after_element_html' => '<small>Add any html or javascript</small>',
        ));

You can also add field attribute(e.g. label, class, name) like this way.

>>    $textFiled = $fieldset->addField('fieldName', 'text');
       $textFiled->setName("name");
       $textFiled->setLabel(Mage::helper('form')->__('Banner Name'));
    $textFiled->setAfterElementHtml('
        <script>
            function customFunction(element){
                alert(element.value);
            }
        </script>
    ');
    $textFiled->setOnclick("customFunction(this)");
   
 
Same thing will applicable for Max types of form field with a small changes.

Time >> $fieldset->addField('fieldName', 'time');

TextArea >> $fieldset->addField('fieldName', 'textarea');

Date >> $fieldset->addField('fieldName', 'date', array(
          'label'     => Mage::helper('form')->__('Date'),
          'image' => $this->getSkinUrl('images/grid-cal.gif'),
          'format' => Mage::app()->getLocale()->getDateFormat(Mage_Core_Model_Locale::FORMAT_TYPE_SHORT)
        ));
       
Submit Button >> $fieldset->addField('submit', 'submit');

DropDown >> $fieldset->addField('fieldName', 'select', array(
          'label'  => Mage::helper('form')->__('Select'),
          'values' => array('0'=>'Please Select','1' => 'Option1','2' => 'Option2', '3' => 'Option3'),
        ));

Drop down with optiongroup
>> $fieldset->addField('fieldName', 'select', array(
          'label'  => Mage::helper('form')->__('Select Value'),
          'values' => array(
                                '0'=>'Please Select',
                                '1' => array(
                                    'value'=> array(array('value'=>'2' , 'label' => 'Option2') , array('value'=>'3' , 'label' =>'Option3') ),
                                    'label' => 'Length'
                                ),
                                '2' => array(
                                    'value'=> array(array('value'=>'4' , 'label' => 'Option4') , array('value'=>'5' , 'label' =>'Option5') ),
                                    'label' => 'Type'
                                ),
                           ),
        ));

Radio Button >> $fieldset->addField('fieldName', 'radio');

Multi Radio Button >> $fieldset->addField('fieldName', 'radios', array(
          'values' => array(
                        array('value'=>'1','label'=>'Radio1'),
                        array('value'=>'2','label'=>'Radio2'),
                        array('value'=>'3','label'=>'Radio3'),
                       ),
        ));

Password Field >> $fieldset->addField('fieldName', 'password');

Note >> $fieldset->addField('fieldName', 'note');

Multiselect >> $fieldset->addField('fieldName', 'multiselect', array(
          'values' => array(
                            '0'=> array( 'label' => 'Please Select', 'value' => '0'),
                            '1' => array(
                                'value'=> array(array('value'=>'2' , 'label' => 'Option2') , array('value'=>'3' , 'label' =>'Option3') ),
                                'label' => 'Length'
                            ),
                            '2' => array(
                                'value'=> array(array('value'=>'4' , 'label' => 'Option4') , array('value'=>'5' , 'label' =>'Option5') ),
                                'label' => 'Type'
                            ), 
                           ),
        ));

Multiline >> $fieldset->addField('fieldName', 'multiline');

Link >> $fieldset->addField('fieldName', 'link', array('href' => 'https://www.facebook.com/onestepmagentosolutions'));

Label >> $fieldset->addField('fieldName', 'label');

Image Upload >> $fieldset->addField('fieldName', 'image');

File Upload >> $fieldset->addField('fieldName', 'file');

Checkbox >> $fieldset->addField('fieldName', 'checkbox');

Multi Checkbox >> $fieldset->addField('fieldName', 'checkboxes', array(
          'label'     => Mage::helper('form')->__('Checkboxs'),
          'name'      => 'Checkbox',
          'values' => array(
                            array('value'=>'1','label'=>'Checkbox1'),
                            array('value'=>'2','label'=>'Checkbox2'),
                            array('value'=>'3','label'=>'Checkbox3'),
                       ),
        ));