第4章 最好的选择-玉鼎真人！(2/3)

stemdataproviderbasedbconnectionfactorytrygetconnection(dbconnectionowningconnection,taskpletionsource`1retry,dbconnectionoptionsuseroptions,dbconnectioninternaloldconnection,dbconnectioninternal&connection)+941

systemdataproviderbasedbconnectioninternaltryopenconnectioninternal(dbconnectionouterconnection,dbconnectionfactoryconnectionfactory,taskpletionsource`1retry,dbconnectionoptionsuseroptions)+143

systemdataproviderbasedbconnectionclosedtryopenconnection(dbconnectionouterconnection,dbconnectionfactoryconnectionfactory,taskpletionsource`1retry,dbconnectionoptionsuseroptions)+17

systemdatasqlclientsqlconnectiontryopeninner(taskpletionsource`1retry)+139

systemdatasqlclientsqlconnectiontryopen(taskpletionsource`1retry)+448

systemdatasqlclientsqlconnectionopen()+130

newfolder1class1user(stri