是否需要添加Using?
我在抽象工厂的数据访问层的公共方法类是这样实现的:
private static SqlConnection connection;
[align=left]public static SqlConnection Connection
{
get
{
string connectionString = ConfigurationManager.ConnectionStrings["MySchoolConnectionAccess"].ConnectionString;
if (connection == null)
{
connection = new SqlConnection(connectionString);
connection.Open();
}
else if (connection.State == System.Data.ConnectionState.Closed)
{
connection.Open();
}
else if (connection.State == System.Data.ConnectionState.Broken)
{
connection.Close();
connection.Open();
}
return connection;
}
}
public static int ExecuteCommand(string safeSql)
{
SqlCommand cmd = new SqlCommand(safeSql, Connection);
int result = cmd.ExecuteNonQuery();
return result;
}
---*********---
请问我要不要将ExecuteCommand方法改成
public static int ExecuteCommand(string safeSql)
{
using (Connection)
{
SqlCommand cmd = new SqlCommand(safeSql, Connection);
int result = cmd.ExecuteNonQuery();
return result;
}
}