我该如何处理错误信息 [英] How do I handle error message

问题描述

在Visual Basic中运行我的项目时，我在调试期间收到错误消息：

参数eception未被用户代码处理



错误是指这段代码：

Sql conn = new SqlConnection（ConfigurationManager.ConnectionStrings [RegistrationConnectionString] .ConnectionString）;



请帮忙

When running my project in visual basic I get the error message during debugging:
Argument eception was unhandled by user code

The error refers to this code:
Sql conn = new SqlConnection(ConfigurationManager.ConnectionStrings["RegistrationConnectionString"].ConnectionString);

Please help

推荐答案

您的连接字符串格式不正确。请查看以下URL以查找数据库的具体示例。



https： //www.connectionstrings.com/



此外，将来，您应该围绕连接代码和任何其他数据库访问包装try / catch。然后，当发生错误时，您应该向用户显示错误消息或记录它。



-Matt -

Your connection string is not correctly formatted for your database. Take a look at the following URL to find specific examples for your database.

https://www.connectionstrings.com/

Also, in the future, you should be wrapping a try/catch around your connection code and any other database access. Then, when an error occurs you should display the error message to the user or log it.

-Matt-

In您的 web.config 在连接字符串中使用provider一词吗？

如果使用SqlConnection，则应该使用类似的东西：

In your web.config do you use the word "provider" in your connection string?
you should use something like this if you use SqlConnection:

<add name="DBnmae" connectionstring="your connection string" providername="System.Data.sqlClient"></add>

您应该使用providerName而不是Provider。

希望这有助于

You should use "providerName" not "Provider".
Hope this helps

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