Binary Serialization

Mar 9, 2007

Hello,
I am trying to serialize (binary) a class and save it in a database. I followed a few examples I found in internet and this is what I came up with: 1 ' Rows
2 <Serializable()> _
3 Public Class Rows
4 Implements ISerializable
5
6 Private _Rows As New Generic.List(Of Row)
7 Public Property Rows() As Generic.List(Of Row)
8 Get
9 Return _Rows
10 End Get
11 Set(ByVal value As Generic.List(Of Row))
12 _Rows = value
13 End Set
14 End Property ' Rows
15
16 ' New
17 Public Sub New()
18 End Sub ' New
19
20 ' New
21 Public Sub New(ByVal siRows As SerializationInfo, ByVal scRows As StreamingContext)
22 End Sub ' New
23
24 ' GetObjectData
25 Public Sub GetObjectData(ByVal siRows As SerializationInfo, ByVal scRows As StreamingContext) Implements ISerializable.GetObjectData
26
27 siRows.AddValue("Rows", Me.Rows)
28
29 End Sub ' GetObjectData
30
31 Public Sub Serialize(ByVal filename As String)
32
33 Dim sRows As Stream = Stream.Null
34 Try
35 sRows = File.Open(filename, FileMode.Create, FileAccess.ReadWrite)
36 Dim bfRows As New BinaryFormatter
37 bfRows.Serialize(sRows, Me)
38 Finally
39 sRows.Close()
40 End Try
41
42 End Sub ' Serialize
43
44 Public Shared Function Deserialize(ByVal filename As String) As Rows
45
46 Dim sRows As Stream = Stream.Null
47 Try
48 sRows = File.Open(filename, FileMode.Open, FileAccess.Read)
49 Dim bfRows As New BinaryFormatter
50 Return CType(bfRows.Deserialize(sRows), Rows)
51 Finally
52 sRows.Close()
53 End Try
54
55 End Function ' Deserialize
56
57 End Class ' Rows
 
After serializing the class I need to save it in an a SQL 2005 database.But all the examples I followed use the filename ... Anyway, do I need to do something to save this into an SQL 2005 database or can I use it as follows? And how can I use this?This is the first time I do something like this so I am a little bit confused.Thanks,Miguel 
  
 

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using System;
using System.Data;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using Microsoft.SqlServer.Server;

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get
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get
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TypePoint h = new TypePoint();
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if (s.IsNull)
{
return Null;
}
else // added part
{
TypePoint p = new TypePoint();
string str = s.ToString();
string[] xy = str.Split(':');
p.x = Decimal.Parse(xy[0]);
p.y = Decimal.Parse(xy[1]);
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}
}

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get
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}
set
{
x = value;
}
}

public Decimal Y
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get
{
return y;
}
set
{
y = value;
}
} // end of added part

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// This is a place-holder static method
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{
//Insert method code here
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}

// This is a place-holder field member
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I want to store a binary string in SqlServer from VB .NET through astored procedure. I have been storing the binary data in a BitArraywhich I am not set on by any means. When I pass the BitArray into astored procedure, which is looking for a variable of type binary, itthrows the following: "Object must implement IConvertible." BitArrayobviously does not implement IConvertable.If anyone has a good way of passing binary data into a storedprocedure through a parameter array I'd appreciate it.

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Sep 14, 2007

I have a 256 bit hash value to identify chunks of data. Would it be a good idea to create a 32-byte binary field as the primary key or encode the bytes to a string?

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Jun 27, 2006

is there a way to query a varbinary column and print the readable char in query analyzer?
thanks in advance!
Ryan

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Jun 6, 2007

Need help reading a binary file see below for details...
 
 I have uploaded a csv file into a sql table.
Now i want to extract the data and insert the data in the csv file into another sql table.
 What commands can i use in sql to extract/ read  the data ? 
 
 
 

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Binary Data Type

Jul 24, 2007

Hello Dears,
I was Maked Pictures table in sql server 2005 with Two Col pic_Id (int) and picture(binary)
i need now ro insert image into this table by Asp.net under VB.net Code  i have in my form  FileUpload and button control
and this is my CodeProtected Sub btnLoad_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnLoad.Click
 Dim content() As Byte = ReadBitmap2ByteArray(FileUpload1.PostedFile.ContentType)
StoreBlob2DataBase(content)
End SubFunction ReadBitmap2ByteArray(ByVal FileName As String) As Byte()
Dim image As Drawing.Bitmap = New Drawing.Bitmap(FileName)Dim stream As IO.MemoryStream = New IO.MemoryStream()
image.Save(stream, System.Drawing.Imaging.ImageFormat.Bmp)Return stream.ToArray
End Function
 Sub StoreBlob2DataBase(ByVal content As Byte())
con.Open()Dim cm As New SqlCommand("Insert into Pictures(Pic_Id,picture) values(@id,@pic)", con)
cm.Parameters.AddWithValue("@ID", 1)Dim p1 As New SqlParameter
p1.ParameterName = "@pic"
p1.SqlDbType = Data.SqlDbType.Binary
p1.Value = content
p1.Size = content.Length
cm.Parameters.Add(p1)
cm.ExecuteNonQuery()
End Sub
 
when i make run to my website it give me an Exeption in this statement
Dim image As Drawing.Bitmap = New Drawing.Bitmap(FileName)
it tell me that Parameter is not valid
  i need help about this please
with my Best regard
khalil
 

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