i want to apply onclick event on a image in the repeater.
i don't know how to do it.
anybody having any idea plz guide me.
thanks in advance

You should define image in repeater itemdatabound.
And then you can give events to image.

In repeater you can define like
HtmlImage img = e.item.FindControl("img") as HtmlImage;
or
Image img = e.item.FindControl("img") as Image;

thanks for your help
i have done it like this

 protected void rptthumbimg_ItemDataBound(object sender, RepeaterItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item)
        {
            DataRowView drv = (DataRowView)e.Item.DataItem;
            dt = obj.searchimg(4, imgcatid);
            if (dt != null)
            {
                Image imgmem = (Image)e.Item.FindControl("imgthumb");
                if (dt.Rows.Count > 0)
                {
                    if (dt.Rows[0]["thumbnail"].ToString() == "")
                    {
                        imgmem.ImageUrl = impplaces + "memimg.png";
                    }
                    else
                    {
                        imgmem.ImageUrl = impplaces + dt.Rows[0]["thumbnail"].ToString();
                    }
                }
            }
        }
    }

i want to implement onclick event on this image and i dont know hoe to do it.

imgmem.Attributes.Add("onclick", "eventname");