c# - ASP.NET Select item from ListView not being called -


i wanted call listview's selectedindexchanged method doesn't go in selectedindexchanged method in runtime. here's code.

<asp:listview id="leftsidemessagelist" runat="server" itemplaceholderid="itemplaceholder1"  datakeynames="id" onselectedindexchanged="leftsidemessagelist_selectedindexchanged"  >

code behind:

 protected void leftsidemessagelist_selectedindexchanged(object sender, eventargs e)     {             string pid = leftsidemessagelist.selecteddatakey.value.tostring();            messagebusinessclass mbc = new messagebusinessclass();            string x = pid;            int id = convert.toint32(x);            var grouplist = mbc.getspecificgroup(x, session["username"].tostring()); //session            session["groupname"] = grouplist.groupname;            session["remail"] = grouplist.recipient.email;   // message             getrightmessagelist(grouplist.recipient.email);  }

edit:

i had linkbutton used call method removed , wanted use item selected event call method instead.

  <asp:linkbutton id="lnkselect"   runat="server"  forecolor="white" >

you need set autopostback property true

<asp:listview id="leftsidemessagelist" runat="server"  autopostback="true" itemplaceholderid="itemplaceholder1"  datakeynames="id" onselectedindexchanged="leftsidemessagelist_selectedindexchanged"  >

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