Change the PrimaryAttributeValue by setvalue method

Hi All,

I need to Set value of the Primary Attribute Value. 

Earlier I was thinking it's very easy to set value of the Primary Attribute Value but the debugging gave me the error the Xrm.Page.data.entity.getPrimaryAttributeValue().setValue

(Xrm.Page.data.entity.attributes.get("name").getValue());.

is not applicable so help me in same

Regard

TIN-TIN