See the list of required documents for a visa holder to enter the Schengen Area, they are identically for most countries. Those who do not fulfil the requirements may be refused entry even if they hold a visa.
http://www.finemb.org.uk/public/download… ..
Please note that a visa is not a guarantee for access. The final authorisation remains with the Immigration Officer at the border.
• In addition to a valid passport with a valid visa (except for exempted nationals), when entering, a traveller should be able to produce the following documents to the Immigration Officer:
For tourism: hotel reservation, other accommondation details or documents from a travel agency
For a professional/business visit: letter from the employer, invitation from a business partner or organisation
For a private visit: invitation letter or contact details from a family member or friend living in the country
• Concerning his/her Means of Living
Cash, traveller's cheques, valid international credit card
• Proof of Travel Insurance
Covering all type of expenses including doctors and hospital fees as well as repatriation costs
• Guarantees of Return
Air ticket, ferry ticket, road or other travel arrangements.