Login failed for user 'sa'. in connection string

Question

I\'m getting the following error:

Login failed for user \'sa\'

When I try to connect server by setting value through a string v

Answer 1

Maybe the server name and the database name (in the dbname and catname variables) are just wrong?

BTW, i would recommend using the SqlConnectionStringBuilder class.

var sb = new SqlConnectionStringBuilder() { InitialCatalog = catname,
                                            DataSource = dbname,
                                            UserID = "sa",
                                            Password = "sa" };

var dbConnection = new SqlConnection(sb.ConnectionString);

Answer 2

put your connectionstring in web.config file as I show below

<connectionStrings>
<add name="Test" connectionString="data source=Harsh; Initial Catalog=Test ; user Id=sa; password=sa123;"/>
</connectionStrings>

Above "Test" is connectionstringname,you can write your datasource name.Mine is Harsh,so changed it according to yours.Give your database name in inital catalog.

And then put this code in your code behind page load event

SqlConnection con = new  SqlConnection(ConfigurationManager.ConnectionStrings["Test"].ToString());

It will work.