c# – 将多维字节数组保存到SQL Server数据库

你怎么能这样做？在Sql Server中使用Varbinary(max)字段并将序列化的多维字节数组保存到其中.为了恢复你的阵列,你需要反序列化你在数据库中存储的内容.

以下是如何执行此操作的示例：

public void TestSO()
{
    using (SqlConnection conexion = new SqlConnection())
    {
        using (SqlCommand command = new SqlCommand())
        {
            //This is the original multidimensional byte array
            byte[,] byteArray = new byte[2,2] {{1,0},{0,1}};
            ConnectionStringSettings conString = ConfigurationManager.ConnectionStrings["ConnectionString"];
            conexion.ConnectionString = conString.ConnectionString;
            conexion.Open();
            command.Connection = conexion;
            command.CommandType = CommandType.Text;
            command.CommandText = "UPDATE Table SET VarBinaryField = @Content WHERE Id = 73 ";
            command.Parameters.Add(new SqlParameter("@Content",SqlDbType.VarBinary,-1));
            //Serialize the multidimensional byte array to a byte[]
            BinaryFormatter bf = new BinaryFormatter();
            MemoryStream ms = new MemoryStream();
            bf.Serialize(ms,byteArray);
            //Set the serialized original array as the parameter value for the query
            command.Parameters["@Content"].Value = ms.ToArray();
            if (command.ExecuteNonQuery() > 0)
            {
                //This method returns the VarBinaryField from the database (what we just saved)
                byte[] content = GetAttachmentContentsById(73);
                //Deserialize Content to a multidimensional array
                MemoryStream ms2 = new MemoryStream(content);
                byte[,] fetchedByteArray = (byte[,])bf.Deserialize(ms2);
                //At this point,fetchedByteArray is exactly the same as the original byte array
            }
        }
    }
}