How to open a popup window on button click of datalist control in asp.net

.NET
1

Hello All,

 I have Datalist controll which contains Details of the product like name, discription, price, image of the product, Add to cart button and [B]"Zoom"[/B] etc. Now on click of this "zoom" i want to open a pop up window showing Image of the product.

I tried
Dim lkb_zoom As New System.Web.UI.WebControls.ImageButton
lkb_zoom = dtListDetail.FindControl(“imgbtn_Zoom”)
lkb_zoom.Attributes.Add(“onclick”, “popWin()”)

on both events,on page load and on ItemCommand of datalist but nothing is comming in the lkb_zoom
and no popup window getting error
“Object reference not set to an instance of an object.”

Please kindly provide me the Solution as soon as possible

Thanks in advanced

2

You need to add the attribute during the DataList’s ItemDataBound event.


Sub Item_Bound(sender As Object, e As DataListItemEventArgs)

         If e.Item.ItemType = ListItemType.Item Or _
             e.Item.ItemType = ListItemType.AlternatingItem Then

            Dim ImageButton As imgBtn = _
                 CType(e.Item.FindControl("imgbtn_Zoom"), ImageButton)

            imgBtn.Attributes.Add("onclick", "popWin()")

End If

I also assume you’re going to want to pass in a url or image src to popWin to show the correct image for each item.

3

Yah i want to pass the url of the image also
But still popup window is not comming

4

Try looking at this guy’s examples. I have used them quite a bit lately.

http://mattberseth.com/blog/modalpopupextender/

5