How to Show Images In DataGrid

I Have One Update Panel, In this Update Panel Control there is an DataGrid Control.

I want to show two Images in DataGrid, after Uploading.

But i want to show those images in DataGrid like thumbnails, when mouse over to the Image or when he click that Image it shoud show Original Image size.

But when binding to the DataGrid it show small Image like thumbnails.

Please help it's urgent.

Thanks,