public class AnswerModel
{
public void Test()
{
    string connectionString = "Data Source=MyDBSOURCE;Initial Catalog=MyDataBase;Integrated Security=SSPI;MultipleActiveResultSets=True";

    string strSQLUpdateUser = "Update [User] SET UserEmail = @UserEmail, UserPassword = @UserPassword WHERE UserID = @UserID";
    string strSQLUpdateUserProfil = "Update UserProfile SET UserProfileText = @UserProfileText WHERE UserID = @UserID";

    using (var sqlcon = new SqlConnection(connectionString))
    {
        using (var updateUserCmd = new SqlCommand(strSQLUpdateUser, sqlcon))
        {

            updateUserCmd.Parameters.AddWithValue("@UserEmail", tbEmail.Text);
            updateUserCmd.Parameters.AddWithValue("@UserPassword", tbAdgangskode.Text);
            updateUserCmd.Parameters.AddWithValue("@UserID", idValue);

            updateUserCmd.ExecuteNonQuery();
        }
        using (var updateUserProfile = new SqlCommand(strSQLUpdateUserProfil, sqlcon))
        {
            updateUserProfile.Parameters.AddWithValue("@UserProfileText", tbProfilTekst.Text);
            updateUserProfile.Parameters.AddWithValue("@UserID", idvalue);

            updateUserProfile.ExecuteNonQuery();
        }
    }
}