Inserting image to the dynamically generated grid

Hi,

I have 2 columns and 5 rows i need to insert the images in to the dynamically created gridview template field.

public void PrepareGridView(ref GridView gvData, DataTable dataTable)
   {
       try
       {
           int count = 0;
           foreach (DataColumn column in dataTable.Columns)
           {
               if (column.DataType == typeof(System.Byte[]))
               {
                   TemplateField bfield = new TemplateField();
                   bfield.HeaderText = column.ColumnName;
                   Image image = new Image();
                   image.ID = imageId;
                   image.Height = 80;
                   image.Width = 80;
                   ItemTemplate itemTemplate = new ItemTemplate(ListItemType.Item, image);
                   bfield.ItemTemplate = itemTemplate;
                   gvData.Columns.Add(bfield);
                   count++;
               }
           }
       }
       catch (Exception ex)
       {
       }
   }

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.UI;
using System.Web.UI.WebControls;

public class ItemTemplate : ITemplate
{
    ListItemType itemType;
    Image imageItem;
    public ItemTemplate(ListItemType type, Image image)
    {
        itemType = type;
        imageItem = image;
    }
    void ITemplate.InstantiateIn(System.Web.UI.Control container)
    {
        switch (itemType)
        {
            case ListItemType.Item:
                container.Controls.Add(imageItem);
                break;
        }
    }
}