protected void LinkButton1_Click(object sender, EventArgs e)
 {
     if (TextBox1.Text == "")
     {
         Label3.Text = "Niste unjeli pitanje!!";
         return;
     }
     DANekretnine.InsertPitanje(Convert.ToInt32(Request["id"]), TextBox1.Text);
     GridView1.DataSource = DANekretnine.GetPitanjaByNekretninaID(Convert.ToInt32(Request["id"]));
     GridView1.DataBind();
     TextBox1.Text = "";
     Label3.Text   = "";
 }