MS CRM 2011 Canceling the Save operation

To stop the save event in Javascript s use the following javascript on save event of form.

function Form_onsave(executionObj)

{

    var shouldSave = true;

    if (shouldSave)

    {

        alert("You can not save!");

        executionObj.getEventArgs().preventDefault();

    }

}

 Note: The pass execution context as first parameter checkbox is very important to this process. Without it, it will not work.