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Validation Of Chtm Text Field

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Is there any way to validate a normal chtml text field(Chtml::textField declared without any model class) and display a message on he same page if the user leaves it blank and clicks a submit button.

Here is the code

echo CHtml::beginForm(array('transaction/disp'),'Post'); ?>   
<div class="row">
   <?php echo CHtml::label('Transaction Status','trst'); ?>
<div class="row">
   <?php echo CHtml::textField('trst','',array('id'=>'trst','size'=>10)); ?>
   <?php echo CHtml::submitButton('Submit', array('id'=>'submit','name'=>'submit')); ?>
<?php echo CHtml::endForm(); ?>

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