Change Image using parameter

I need to change the logo on my reports according to a parameter that I pass from VB.NET.

What is the best way to load the image into the report?

I have attempted to use a dataset:

I created a logo field in my dataset
I loaded the correct image in VB.NET
I then assigned the 'logo' field in the dataset to this image

My problem is that I don't know what the data type of the logo field should be - I have created the dataset manually and the images are not in a database.

This is my code:

'Load image into ByteArray
Dim fs As New System.IO.FileStream("C:\temp\test.jpg", IO.FileMode.Open)
Dim nBytes As Integer = fs.Length
Dim ByteArray(nBytes) As Byte
Dim nBytesRead As Integer = fs.Read(ByteArray, 0, nBytes)
fs.Read(ByteArray, 0, Convert.ToInt32(fs.Length.ToString(), 10) - 1)

'Set logo field to this image
Dim tbl As New mySchemas.myDataTable
Dim rw As DataRow = tbl.NewRow
rw("logo") = ByteArray 'AN ERROR OCCURS ON THIS LINE
tbl.Rows.Add(rw)
Dim ds As New DataSet
ds.Tables.Add(tbl)

Is this the best way to do load an image into crystal? If so what should the datatype of the logo field be in the dataset? I tried Byte but that did not work.

Thanks for any help
ElaineElaine,
I'll preface this by saying: I don't use CR10, and don't use .NET with CR.
From your code you are declaring a row object to hold the picture.
Shouldn't you be using a "field" object, or whatever the .NET equivalent is?
Field type should be OLE Object/BLOB(BinaryLargeOBject)/BitStream or similar.

Dave|||Thanks for your reply Dave. All sorted now.

The data type I needed turned out to be 'hexbinary'
Incase anyone has the same problem this is the solution:

Dim data As New DataSet()
Dim row As DataRow

data.Tables.Add("Images")
data.Tables(0).Columns.Add("img", System.Type.GetType("System.Byte[]"))

Dim fs As New FileStream("C:\test.jpg", FileMode.Open)
Dim br As New BinaryReader(fs)

row = data.Tables(0).NewRow()
row(0) = br.ReadBytes(br.BaseStream.Length)
data.Tables(0).Rows.Add(row)

br.close
fs.close

br = Nothing
fs = Nothing

' CrystalReport1 is a strongly typed report created in Visual Studio.
Dim cr As New CrystalReport1()
cr.SetDataSource(data)
CrystalReportViewer1.ReportSource = cr|||Are you using the version of crystal reports that came with visual net??
I create the typed dataset with a field hexBinary and load the pictur there but how can I put that picture in the report it shows as a number and no image apearssql