ExportDialog Constructor
        
 Initializes the ExportDialog. Called during construction.
 
         
        Parameters
        
            - exportProviderId
            
 
            - 
                
(optional) The export provider that will be selected when the dialog is shown.
                
Optional: True 
        
        Examples
        The following example initializes a new instance of a ExportDialog object:
        
var newObject = new dundas.controls.ExportDialog();