Could not get value from parameter on making a custom widget

[rupamhazra]

Hi,

I am developing a custom widget where we can the particular product by product id (admin end) and show the product on front end.

Problem is that i can't get the data from admin portion that means $this->getData('productId');

product id as a parameter declared in widget.xml.

Here is my code on Topseraches.php under Block directory.

class Rstar_RsWidget_Block_Topsearches
 extends Mage_Core_Block_Template
 implements Mage_Widget_Block_Interface
{
protected function _toHtml()
  {
$productId=$this­->getData('productId');
   print_r($productId);
}
}

widget.xml

<?xml version="1.0"?>
<widgets>
  <RsWidget_topsearches type="RsWidget/topsearches" translate="name description" module="RsWidget">
    <name>Newly Added Product</name>
    <description type="desc">Newly Added Product</description>
    	<parameters>
     		<productId>
		        <label>Product Id</label>
		        <visible>1</visible>
		        <required>1</required>
		        <type>text</type>
		        <description>Enter product Id</description>
      		</productId>
      	</parameters>
  </RsWidget_topsearches>
</widgets>

config.xml

<?xml version="1.0"?>
<config>
  <modules>
    <Rstar_RsWidget>
      <version>0.1.0</version>
    </Rstar_RsWidget>
  </modules>
  <global>
    <blocks>
      <RsWidget>
        <class>Rstar_RsWidget_Block</class>
      </RsWidget>
    </blocks>
    <helpers>
    <RsWidget>
        <class>Rstar_RsWidget_Helper</class>
      </RsWidget>
    </helpers>
    <models>
      <RsWidget>
        <class>Rstar_RsWidget_Model</class>
      </RsWidget>
    </models>
  </global>
</config>

Please check where is my issue.