How to get the new gridview row order in the server side when using drag and drop?

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I have a gridView which is movable with dragAndDrop. I am using JQuery for dragAndDrop the row of gridView. The row of gridView is moving but after move the row of gridView, the index(order) of row is not changing.
I want to change the row index of gridView.
I am using this code:

What I have tried:

<script type="text/javascript">
        $(function () {
            $("[id*=GridView2]").sortable({
                items: 'tr:not(tr:first-child)',
                cursor: 'pointer',
                axis: 'y',
                dropOnEmpty: false,
                start: function (e, ui) {
                    ui.item.addClass("selected");
                },
                stop: function (e, ui) {
                    ui.item.removeClass("selected");
                },
                receive: function (e, ui) {
                    $(this).find("tbody").append(ui.item);
                },
                update: function (e, ui) {               
                    var newOrder = $(this).sortable('toArray').toString();
                    $.get('Default.aspx', { order: newOrder });
                }
            });
        });
             </script>

      <asp:GridView ID="GridView3" CellPadding="5" CellSpacing="0"  OnRowDataBound="GridView3_RowDataBound"
                    ForeColor="#333"          runat="server">
                    <HeaderStyle BackColor="#989898" ForeColor="white" />
                </asp:GridView>

           <asp:Button ID="btnupdate" runat="server" Text="Save" OnClick="btnupdate_Click" />

Posted 11-Sep-19 22:03pm

Member 14576724

Updated 11-Sep-19 22:26pm

v2

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OriginalGriff · Answer 1 · 2019-09-11T22:26:00

This is a repost of this: Draganddrop unable to change the order of gridview row using C#[^]
Either you are posting the same question - and code fragments - under two users, or your class is all trying to solve the same problem in identical code.

Either way it's a waste of our time to have it in two places, and / or of your time if it's the same class assignment (given that two identical answers will be noticed by your tutor, trust me).