protected void Page_Load(object sender, EventArgs e)
{
int x = Convert.ToInt32(Request.QueryString["OGRID"]);
Response.Write(x);
EntityOgrenci ent = new EntityOgrenci();
ent.Id = x;
BLLOgrenci.OgrenciSilBLL(ent.Id);
Response.Redirect("OgrenciListesi.aspx");
}