Object reference not set to an instance of an object

Question

Hi all       when i run an web app i get the following error message in the connection string are: Object reference not set to an instance of an object. The Below code is i am using   string connectionString = ConfigurationManager.ConnectionStrings[ I PUT MY CONNECTION STRING IS HERE ].ConnectionString;     Can Any one try to hep me.     Thank You...

Manas Mohapatra · Answer

The key(I PUT MY CONNECTION STRING IS HERE) is not present in your config file so you are getting object reference issue. Try with below code: Add below code web.config or app.config configuration > connectionStrings > add name = MyConnection connectionString = Data Source=localhost;Initial Catalog=MyDB;Integrated Security=True /> connectionStrings > configuration > Add following code to get value from config file.. string connectionString = ConfigurationManager.ConnectionStrings[ MyConnection ].ConnectionString;

Munesh Sharma · Answer

better you put that connection string in web config file  it will be available globle to u .. like Manas Mohapatra suggest you

Vipul Malhotra · Answer

Hi Do you put the complete Connection String inside the [] or just the key name in which it is mentioned in you config file? I hope you are aware that the code that you are using is to get the connection string from the config file(web.config or app.config) Do let me know the approach that you are using it would be then easy to identify the error. Thanks Vipul

SATHEESH P · Answer

THANK YOU Manas Mohapatra