I have a repeater and a dropdownlist inside this repeater

Question

I am populating dropdownlist inside a repeater (DropDownList is filled with values from database)

protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
    {
        try
        {
            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
            {
                string idAdvert = objAdvert.GetAllIlanPage(ClsSession.idUser, null).Rows[i]["ID_ADVERT"].ToString();
                DropDownList DDL = (DropDownList)e.Item.FindControl("DropDownList1");
                DDL.Items.Add("");
                DDL.Items.Add(new ListItem("Doping", idAdvert));
                DDL.Items.Add(new ListItem("İşlem", idAdvert));
                DDL.SelectedIndex = 0;
                i = i + 1;

            }
        }

It is working but when I click Dropdownlist, selectedindexchanged doesnt work. It always sends selectedIndex=1

 protected void SelectedIndex_Degisti(object sender, EventArgs e)
    {
        //DropDownList ddl = sender as DropDownList;
        //DropDownList doldurulacak_ddl = (DropDownList)ddl.Parent.FindControl("DropDownList1"); 
        ////Aynı satırdaki doldurulacak diğer droplisti bulduk.

        Control parent = ((Control)sender).Parent;
        DropDownList GeneralDDL = (DropDownList)parent.FindControl("DropDownList1");

        if (GeneralDDL.SelectedItem.Text == "Doping") ;//Response.Redirect("default.aspx");
        else if (GeneralDDL.SelectedItem.Text == "İşlem") ;// Response.Redirect("login.aspx");
    }

Answer 1

Since you are adding controls to the Repeater dynamically, you must make sure that you are re-adding these on each PostBack. This will enable the from values to be set to what the user chose.

Try moving your Repeater.DataBind() call to the OnInit() event.