Button click event in Datalist

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I want a button click event inside a Datalist But I am not able to get so
this is my code

  <pre lang="HTML"><asp:DataList ID="ArticleRep" runat="server" OnItemDataBound="ArticleRep_ItemDataBound"
                    BorderColor="WhiteSmoke" BorderStyle="Solid" BorderWidth="0px" GridLines="Both"
                    Width="100%" OnItemCommand="ArticleRep_ItemCommand">
                    <ItemTemplate>
                    
                        <asp:DataList ID="OwnArticle" runat="server" OnItemDataBound="OwnArticle_ItemDataBound">
                            <ItemTemplate>
                                <table width="100%" cellpadding="3px" cellspacing="0">
                                    <tr>
                                        <td width="20%">
                                            <asp:Image ID="img" runat="server" Height="50px" Width="45px" ImageUrl='<%#"~/UsingID.ashx?id="+ Eval("ID")%>' />
                                        </td>
                                        <td width="80%">
                                            <table width="100%" cellpadding="0" cellspacing="0">
                                                <tr>
                                                    <td width="100%">
                                                        <asp:HyperLink ID="hlink" runat="server">
                                                        </asp:HyperLink>
                                                    </td>
                                                </tr>
                                                <tr>
                                                    <td>
                                                        <asp:DataList ID="innerRepeater" runat="server">
                                                            <ItemTemplate>
                                                                <asp:Label ID="lbldesc" runat="server" Text='<%# Eval("Key").ToString()%>'></asp:Label>
                                                            </ItemTemplate>
                                                        </asp:DataList>
                                                    </td>
                                                </tr>
                                            </table>
                                        </td>
                                    </tr>
                                </table>
                            </ItemTemplate>
                        </asp:DataList>
                        <table cellpadding="0" cellspacing="0" width="100%">
                            <tr>
                                <td width="10%">
                                     
                                </td>
                                <td colspan="5" width="90%">
                                    <asp:Label ID="lblArticleName" CssClass="lblCaptionGrey" runat="server" Text='<%# Eval("Article_Name").ToString()%>'></asp:Label>
                                </td>
                            </tr>
                            <tr>
                                <td width="10%">
                                     
                                </td>
                                <td colspan="5" width="90%">
                                    <asp:Label ID="Label2" CssClass="lblPara" runat="server" Text='<%# Eval("Article_Desc").ToString()%>'></asp:Label>
                                </td>
                            </tr>
                            <tr>
                                <td>
                                    <asp:Button ID="btnLike" CommandName="isLike" runat="server"
                                        Text="Like" />
                                </td>
                            </tr>
                        </table>
                    </ItemTemplate>
                </asp:DataList>

and codebehind is

protected void ArticleRep_ItemCommand(object source, DataListCommandEventArgs e)
        {
            if (e.CommandName == "isLike")
            {
                Response.Write(@"<script language='javascript'>alert('success.');</script>");
            }
            else
                Response.Write(@"<script language='javascript'>alert('Error.');</script>");
        }

how to get a button click event for the button inside a datalist?

checkout the above code!!??