use AdventureWorks2012;
select VIEW_DEFINITION from INFORMATION_SCHEMA.VIEWS
where TABLE_NAME='vSalesPerson';

select 
  OBJECT_NAME(depz.object_id),
  OBJECT_NAME(depz.referenced_major_id),
  colz.name,
  * 
from sys.sql_dependencies depz
left outer join sys.columns colz
  on depz.object_id = colz.object_id 
  and depz.referenced_minor_id=colz.column_id
where  OBJECT_NAME(depz.object_id) = 'YourViewName'

-- To get just the table names
SELECT DISTINCT TABLE_NAME
FROM information_schema.view_column_usage
WHERE VIEW_NAME = 'v_YourView'

-- To get table and column names
SELECT TABLE_NAME, COLUMN_NAME
FROM information_schema.view_column_usage
WHERE VIEW_NAME = 'v_YourView'