Using Statement When Setting Control's Datasource To Sqldatareader

I know it is recommended to use a using statement with a sqldatareader, but I was wondering if it is necessary when you are setting the datasource of a control to a datasource directly. in some places in my code I do this.

using (SqlDataReader reader = getReader())
{
while (reader.Read())
{
// do stuff with data
}
}

when binding to a control I do this.

ddlCustomer.DataSource = getReader(); // get Reader returns a sqldataReader
ddlCustomer.DataBind();

In the second case, do I need to use a using statement. Do i have to first declare an SqlDataReader in a using statement, then set the DataSource to that object. Seems like more clutter in the code, so i was hoping binding to the SqlDataReader disploses of the SqlDataReader.