推荐订阅源

http://www.mono-project.com/PostgreSQL#Some_Connection_Example

Parameter Definition	Description	Example
Server	hostname of the PostgreSQL Server	Server=localhost
Database	name of the database	Database=postgres
Port	Network port to connect. Optional	Port=54321
User ID	user id	User ID=postgres
Password	password	Password=mypass12
Encoding	Encoding to be used. Possible values: ASCII(default) and UNICODE. Use UNICODE if you are getting problems with UTF-8 values	Encoding=UNICODE
SSL	True or False. Controls whether to attempt a secure connection. Default = False	SSL=true
Pooling	True or False. Controls whether connection pooling is used. Default = True	Pooling=false
MinPoolSize	Min size of connection pool. Default: 1	MinPoolSize=2
MaxPoolSize	Max size of connection pool. Default: 20	MaxPoolSize=6
Timeout	Time to wait for connection open in seconds	Timeout=30
Sslmode	Mode for ssl connection control. Sslmode can be one of the following values: Prefer - If it is possible to connect using ssl, it will be used. Require - If an ssl connection cannot be made, an exception is thrown. Allow - Not supported yet, just connects without ssl. Disable - No ssl connection is done. Default is Disable.	Sslmode=Require
Protocol	Protocol version to use, instead of automatic detection. First tries 3 and fallsback to 2; Integer 2 or 3.	Protocol=2

CommandTimeout=20;Timeout=15;