Closing SqlConnection and SqlCommand c#

Question

In my DAL I write queries like this:

using(SQLConnection conn = \"connection string here\")
{
    SQLCommand cmd = new (\"sql query\", conn);
    // execute          


        

Answer 1

The SqlConnection has no knowledge about the SqlCommand, so you should close it by itself:

using (SqlConnection conn = new SqlConnection("connection string here"))
using (SqlCommand cmd = new SqlCommand("sql query", conn))
{
    // execute it blah blah
}