Just found the email below from the google archives of the C# group... I
believe this answers my question:
**************************************
Here is something I've been playing with. It serializes an object to
a database after first pulling out a byte array from a MemStream. To
pull the object out of the database I extract the byte[] array put in
back in a MemStream and then deserialize.
Hope this helps.
using System;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
using System.Data.SqlClient;
using System.Data;
namespace t
{
namespace r
{
/// <summary>
/// Summary description for Serialize.
/// </summary>
public class CSerialize
{
/// <summary>
/// Returns by ref a byte array containing the
serialized object "obj".
/// </summary>
/// <param name="obj">Object to be serialize (the
object must have the attribute Serializable set).</param>
/// <param name="buffer"></param>
static public void SerializeToArray(object obj, ref
byte[] buffer)
{
MemoryStream ms = null;
try
{
ms = new MemoryStream();
BinaryFormatter f = new
BinaryFormatter();
f.Serialize(ms, obj);
buffer = ms.ToArray();
}
catch(Exception e)
{
TSError.LogError("",
"CSerialize.SerializeToArray", 1, e);
throw e;
}
finally
{
if( ms != null)
ms.Close();
}
}
/// <summary>
/// Deserializes object out of the given byte array.
/// </summary>
/// <param name="oMsg"></param>
/// <param name="buffer"></param>
/// <returns></returns>
static public bool DeserializeObject(ref object
oMsg, byte[] buffer)
{
MemoryStream ms = null;
bool bResult = true; // default
try
{
ms = new MemoryStream(buffer);
BinaryFormatter f = new
BinaryFormatter();
oMsg = f.Deserialize(ms);
}
catch(Exception e)
{
TSError.LogError("",
"CSerialize.SerializeToArray", 1, e);
throw e;
}
finally
{
if( ms != null )
ms.Close();
}
return bResult;
}
static public bool DebugWriteBlobToDatabase(byte[]
buffer)
{
SqlConnection conn = new SqlConnection();
SqlCommand cmd = new SqlCommand();
try
{
conn.ConnectionString = "Data
Source=dssql;InitialCatalog=smr;User ID=sa;Password=;";
conn.Open();
cmd.CommandType =
System.Data.CommandType.StoredProcedure;
cmd.CommandText = "zzClarkBlobTest";
cmd.Connection = conn; //
connection is already opened.
SqlParameter parmPKID =
cmd.Parameters.Add("@DataBlob", SqlDbType.Image);
parmPKID.Value = buffer;
if(cmd.ExecuteNonQuery() != 1)
throw new Exception("Failed
to insert blob");
}
catch(Exception e)
{
string s = e.Message;
s = s + "";
}
finally
{
if(conn != null && conn.State !=
System.Data.ConnectionState.Closed )
conn.Close();
}
return true;
}
static public bool DebugReadBlobFromDatabase(ref
byte[] buffer)
{
SqlConnection conn = new SqlConnection();
SqlCommand cmd = new SqlCommand();
DataSet ds = null;
string sJunk;
object obj = null;
try
{
conn.ConnectionString = "Data
Source=dssql;InitialCatalog=serviceqmaster;User ID=sa;Password=;";
conn.Open();
SqlDataAdapter adapter = new
SqlDataAdapter();
adapter.SelectCommand = new
SqlCommand("Select * from zzTestTable", conn);
ds = new DataSet();
// Get rows from CS_event table.
adapter.Fill(ds);
//sJunk =
ds.Tables[0].Rows[0][0].GetType().ToString();
//obj =
(byte[])ds.Tables[0].Rows[0][1];
buffer =
(byte[])ds.Tables[0].Rows[0][1];
}
catch(Exception e)
{
string s = e.Message;
s = s + "";
}
finally
{
if(conn != null && conn.State !=
System.Data.ConnectionState.Closed )
conn.Close();
}
return true;
}
}
}
"Mark" <Ma**@nowhere.com> wrote in message
news:Ob**************@TK2MSFTNGP11.phx.gbl...
I'd like to take an instance of a class and store it in a database. I've
marked my class as [Serializable] and am using the binary formatting code
similar to
http://msdn.microsoft.com/library/de...onconcepts.asp, although I'd be happy to use something else. What method should be used
to store this serialized class in a SQL Server database? Likewise, what
method should be used to recreate this instance from the datbase?
Thanks in advance.
mark
