Visual studio C# oracle database -

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i have problem 1 possible solution. have created school oracle database on school's vpn. in sql oracle developer have configuration:

enter image description here

i found different solutions connecting oracle visual studio, not of them run. of errors thrown tns listener. don't know, if correct, on view connect type basic.

all tutorials found, using tns. tns possible problem?

sorry, maybe bad question), possible configure visual studio connecting oracle database configuration?

i not use connection string now, because want connect database server explorer. here view available data sources , providers.

enter image description here

and in tnsnames.ora have this: 

(test = (description = (address = (protocol = tcp)(host = fei-sql1.upceucebny.cz)(port = 1521)) (connect_data = (server = dedicated) (service_name = ee11) ) )

thanks , time.


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