<div id="myprofilepost" style="border:2px solid #d1d7d7; overflow-x:hidden; overflow-y:scroll; height:600px"><asp:Label ID="lbl_error_msg" runat="server" ForeColor="SlateGray" Font-Bold="true"></asp:Label><div style="margin-left:20px"><asp:Repeater ID="rptr_my_post" runat="server" OnItemCommand="rptr_my_post_ItemCommand"><HeaderTemplate></HeaderTemplate><ItemTemplate><div id="textualPart"><h4 style="float:left"><asp:LinkButton ID="lnk_btn_resource_title" runat="server" Text='<%#Eval("share_Resource_Title").ToString().Substring(0, Math.Min(Eval("share_Resource_Title").ToString().Length, 50)) %>' CommandName="Preview" CommandArgument='<%# Eval("share_Resource_ID") %>'></asp:LinkButton> </h4> <h4 style="float:right; margin-right:10px; font-size:14px"><asp:Label runat="server" Text='<%#Eval("privacy_Type_Name") %>'></asp:Label> <asp:LinkButton ID="lnk_btn_edit_post" runat="server" title="Edit" CommandName="Edit" CommandArgument='<%# Eval("share_Resource_ID") %>'><img src="Images/edit_icon.png" height="25" width="25" style="background-color:transparent; height:25px; width:25px; margin-bottom:10px" /> </asp:LinkButton><Ajax:ModalPopupExtender ID="mdlpopup_edit" runat="server" TargetControlID="lnk_btn_edit_post" PopupControlID="Panel2" BackgroundCssClass="modalBackground" CancelControlID="btn_cancle"></Ajax:ModalPopupExtender><h5 style="width:250px; float:left;color:#f67e0a" > <b> Field:</b> <asp:Label ID="lbl_field" runat="server" Text='<%#Eval("field_Name") %>' Font-Size="12"></asp:Label></h5> <h5 style="width:250px; float:left; margin-left:20px;color:#f67e0a"><b> IdeaTye: </b><asp:Label ID="lbl_idea_type" runat="server" Text='<%#Eval("share_Type_Name") %>' Font-Size="13"></asp:Label></h5><br /><br /><h6><asp:Label ID="lbl_description" runat="server" Text='<%#Eval("share_Resource_Description") %>' Style="font-size:16px; font-family:Calibri" ></asp:Label> </h6><br /><img src="Images/doted_border.png" width="500" style="margin-left:50px" /></div></ItemTemplate></asp:Repeater><asp:Panel ID="Panel2" runat="server" CssClass="modalPopup" Align="Top" Style="display:none" ><asp:Label ID="Label1" runat="server"></asp:Label><div class="form-group"><div class="col-lg-10"><asp:TextBox ID="tb_edit_share_idea_title" runat="server" CssClass="form-control" ForeColor="Black" MaxLength="80"></asp:TextBox></div></div><br /><br /><div class="form-group"> <div class="col-lg-10"><asp:DropDownList ID="ddl_edit_share_idea_type" runat="server" CssClass="form-control ddl" Width="400"><asp:ListItem></asp:ListItem></asp:DropDownList> </div></div><br /><br /><div class="form-group"> <div class="col-lg-10"><asp:DropDownList ID="ddl_edit_study_area" runat="server" CssClass="form-control ddl" Width="400"><asp:ListItem></asp:ListItem></asp:DropDownList> </div></div><br /><br /><div class="form-group"> <div class="col-lg-10"><asp:DropDownList ID="ddl_edit_privacy" runat="server" CssClass="form-control ddl" Width="400"><asp:ListItem></asp:ListItem></asp:DropDownList> </div></div><div class="form-group"><div class="col-lg-10"> <asp:TextBox ID="tb_edit_share_idea_description" runat="server" placeholder="Description" TextMode="MultiLine" Rows="3" CssClass="form-control" ForeColor="Black"></asp:TextBox></div></div><div class="form-group"><div class="col-lg-10 col-lg-offset-2"><asp:Button ID="btn_update_post" runat="server" CssClass="btn btn-primary" Text="Share" OnClick="btn_update_post_Click" /> <asp:Button ID="btnCancel" runat="server" CssClass="btn btn-warning" Text="Cancel" /> </div></div></asp:Panel> </div></div>Modalpop Extender not pop when i clicked on edit button. Tell me what's wrong with me code? Waiting for your reply