How to display imagebackground on dynamically loaded button

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C#

C#4.0

Good day
Could you please help, I am using EF 4.0 windows application c#. I am battling to display imagebackground on dynamically loaded button. your help will be much appreciated.
1. I have a table TblProduct with a column "Image" and datatype = Image
2. my code
int i = 1;

foreach (TabPage tp in tabControl1.TabPages)
{

ObjectQuery<tblproduct> listProduct = new ObjectQuery<tblproduct>("SELECT VALUE P FROM TblProducts AS P WHERE P.ProductType = " + i.ToString(), afNewObject);

FlowLayoutPanel flp = new FlowLayoutPanel();
flp.Dock = DockStyle.Fill;

foreach (TblProduct tprod in listProduct)
{
Button b = new Button();
b.Size = new Size(100, 100);
b.Text = tprod.Description;

b.BackgroundImage = tprod.Image; // error line

b.Tag = tprod;

b.Click += new EventHandler(UpdateProductList);

flp.Controls.Add(b);
}

tp.Controls.Add(flp);
i++;