Just started to learn this language, what also do not understand, in order to buy the graduation design a study code, can realize the code also did not move out of the question, can't run, excuse me each great god...??

CodePudding user response:

Suggest you install first used, to make additional database,
Configuration available connection string again, https://blog.csdn.net/yenange/article/details/77026214

You this code, the source of error is not line, you can follow the F11, see which step into error,
Two possibilities:
1. The connection string to write is dead,
2. Connection string on the web. Config,

But it doesn't matter, as long as the connection string to get the correct, the code can run,

CodePudding user response:

Prompt obviously database problem, first you have database, the second connection configuration

CodePudding user response:

Database is configured, the other is to operating table will exist

CodePudding user response:

Do you know what is database?

Do you know what are instances?

Do you know what is the connection string?


Pupil three even ask

CodePudding user response:

Database installed and configured connection string

CodePudding user response:

Since all buy code, just to spend some money to buy the service, let people can run, otherwise it honestly reading to see video tutorials,