Form Validation Help?

What I would like to do is validate only the fields I choose. The problem is I don’t know how to go about it. Say I want to validate everything in this form but: ‘type_of_maintenance’ how would I go about doing that?

If you could post an example it would be appreciated.

Thanks,


<?php $form=$this->beginWidget('CActiveForm', array(

	'id'=>'pms-form',

	'enableAjaxValidation'=>false,

)); ?>


	<p class="note">Fields with <span class="required">*</span> are required.</p>


	<?php echo $form->errorSummary($model); ?>


	<div class="row">

		<?php echo $form->labelEx($model,'asset_id'); ?>

				<?php echo $form->dropDownList($model, 'asset_id', CHtml::listData(assets::model()->findAll(), 'id', 'asset_no'),array('prompt' => 'Select a Asset'));

		?>

		<?php echo $form->error($model,'asset_id'); ?>

	</div>


	<div class="row">

		<?php echo $form->labelEx($model,'type_of_maintenance'); ?>

		<?php echo $form->textField($model,'type_of_maintenance',array('size'=>60,'maxlength'=>255)); ?>

		<?php echo $form->error($model,'type_of_maintenance'); ?>

	</div>


	<div class="row">

		<?php echo $form->labelEx($model,'scheduled_maintenance'); ?>

		<?php //echo $form->textField($model,'scheduled_maintenance'); ?>

		<?php echo CHtml::activeCheckBox($model,'scheduled_maintenance'); ?>

		

		<?php echo $form->error($model,'scheduled_maintenance'); ?>

	</div>


	<div class="row">

		<?php echo $form->labelEx($model,'unscheduled_maintenance'); ?>

		<?php echo CHtml::activeCheckBox($model,'unscheduled_maintenance'); ?>

		<?php //echo $form->textField($model,'unscheduled_maintenance'); ?>

		<?php echo $form->error($model,'unscheduled_maintenance'); ?>

	</div>



Read how to define validation rules - http://www.yiiframework.com/doc/guide/1.1/en/form.model#declaring-validation-rules

Thanks thats exactly what I did. Apppreciate the help.