Cannot access checkbox checkedchanged event inside DataList - asp.net

Question

I have checkboxes inside a datalist itemtemplate..But i cant access checkbox chechedchange event. I set AutoPostBack as true. But still cant fire event.
Here my codes.
<ul class="commentlist" >
<asp:DataList ID="datalistYorum" runat="server" DataSourceID="ods_yorumlar"
RepeatLayout="Flow" ItemStyle-Wrap="True" RepeatDirection="Horizontal"
onitemcreated="datalistYorum_ItemCreated"
onitemdatabound="datalistYorum_ItemDataBound" onload="datalistYorum_Load"
ondatabinding="datalistYorum_DataBinding">
<ItemTemplate>
<li class="comment">
<div class="comment-body">
<div class="comment-author vcard">
<div class="lightbox-photo">
<a class="image-overlay" href='<%# "Foto/profil/foto_buyuk/" + Eval("Yorum_Profil_Foto_Buyuk") %>' data-rel="prettyPhoto" title='<%# Eval("Yorum_UserName")%>'>
<img src='<%# "Foto/profil/foto_kucuk/" + Eval("Yorum_Profil_Foto_Kucuk") %>' alt='<%# Eval("Yorum_UserName")%>' class="avatar" />
</a>
</div>
<cite class="fn"><asp:HyperLink ID="linkProfil" runat="server" Text='<%# Eval("Yorum_UserName")%>' NavigateUrl='<%# "~/profil.aspx?user_id="+ Eval("User_ID") %>'></asp:HyperLink></cite>
<cite class="fn-time"><%# Eval("Yorum_Gecen_Zaman")%></cite>
</div>
<p><%# Eval("Yorum_Text")%></p>
<div class="reply"><asp:CheckBox ID="checkLike" runat="server" CssClass="comment-reply-link" AutoPostBack="True" />
<asp:ToggleButtonExtender ID="ToggleButtonLike" runat="server" TargetControlID ="checkLike" ImageHeight="32" ImageWidth="52" CheckedImageUrl="~/images/liked.png" UncheckedImageUrl="~/images/like.png" CheckedImageAlternateText="Like">
</asp:ToggleButtonExtender>
</div>
<div class="reply"><asp:CheckBox ID="checkDislike" runat="server" CssClass="comment-reply-link" AutoPostBack="True" />
<asp:ToggleButtonExtender ID="ToggleButtonDislike" runat="server" TargetControlID="checkDislike" ImageHeight="32" ImageWidth="62" UncheckedImageUrl="~/images/dislike.png" CheckedImageUrl="~/images/disliked.png">
</asp:ToggleButtonExtender>
</div>
</div>
</li>
</ItemTemplate>
</asp:DataList>
<asp:ObjectDataSource ID="ods_yorumlar" runat="server"
DataObjectTypeName="Yorum" TypeName="yonet" SelectMethod="PostYorumlariGetir"
ondatabinding="ods_yorumlar_DataBinding"
onselecting="ods_yorumlar_Selecting" onselected="ods_yorumlar_Selected">
<SelectParameters>
and code behind:
protected void datalistYorum_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType==ListItemType.AlternatingItem)
{
CheckBox checkLike = (CheckBox)e.Item.FindControl("checkLike");
CheckBox checkDislike = (CheckBox)e.Item.FindControl("checkDislike");
if (!Page.IsPostBack)
{
checkLike.CheckedChanged += new EventHandler(checkLike_CheckedChanged);
checkDislike.CheckedChanged += new EventHandler(checkDislike_CheckedChanged);
}
}
}
public void checkLike_CheckedChanged(object sender, EventArgs e)
{
object user_id = Membership.GetUser().ProviderUserKey;
DateTime event_date = DateTime.Now;
CheckBox checkLike = (CheckBox)datalistYorum.FindControl("checkLike");
if (checkLike.Checked == true)
{
try
{
using (SqlConnection baglanti = new SqlConnection(ConfigurationManager.ConnectionStrings["xxx"].ConnectionString.ToString()))
{
SqlCommand komut = new SqlCommand("sp_likeordislike", baglanti);
komut.CommandType = CommandType.StoredProcedure;
komut.Parameters.AddWithValue("#comment",1);
komut.Parameters.AddWithValue("#user_id", user_id);
komut.Parameters.AddWithValue("#likeordislike", 1);
komut.Parameters.AddWithValue("#event_date", event_date);
baglanti.Open();
komut.ExecuteNonQuery();
baglanti.Close();
}
}
catch (Exception)
{
throw;
}
}
}
But nothing happen.Thanks!

Answer 1

Unless you are adding the event handler for the 'checklike' Checkbox in Page_Load it looks as though the assignment is missing.
Change the 'checklike' Checkbox declaration as follows:
<asp:CheckBox ID="checkLike" runat="server" CssClass="comment-reply-link" AutoPostBack="True" OnCheckedChanged="checkLike_CheckedChanged" />

Answer 2

Try this:
protected void checkDislike_CheckedChanged(Object sender, EventArgs e)
{
CheckBox cb = (CheckBox) sender;
DataListItem item = (DataListItem) cb.NamingContainer;
//
//
}
Your markup will look like this:
<asp:CheckBox ID="checkDislike" runat="server" CssClass="comment-reply-link" AutoPostBack="True" OnCheckedChanged="checkDislike_CheckedChanged" />
Before trying this comment out all the other checkbox events
Check this link: