[英]Object not set to an instance of object
I have the following connection string in the web.config file, when I run I get an error 我在web.config文件中有以下连接字符串,运行时出现错误
"Object not set to an instance of object"
“对象未设置为对象的实例”
at the following line. 在下一行。 I am using sql server 2012 db and visual studio 2010.
我正在使用SQL Server 2012数据库和Visual Studio 2010。
dbConnectionString = ConfigurationManager.ConnectionStrings["myConnection"].ConnectionString;
Config 配置
<connectionStrings>
<add name="myConnection" connectionString="Data Source=sag-pc\;Initial Catalog=BalloonShop;Persist Security Info=True;User ID=sa;Password=pwd" providerName="System.Data.SqlClient" />
Try this 尝试这个
Config : 配置:
<appSettings>
<add key="myConnection" value="Data Source=sag-pc;Initial Catalog=BalloonShop;Persist Security Info=True;User ID=sa;Password=pwd;providerName=System.Data.SqlClient"/>
</appSettings>
In Code : 在代码中:
string _connection=ConfigurationManager.AppSettings["myConnection"].ToString(); 字符串_connection = ConfigurationManager.AppSettings [“ myConnection”]。ToString();
请尝试以下操作:
ConfigurationManager.ConnectionStrings["myConnection"].ToString()
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