Sorting With Summarys

[Nate Bross]

Im trying to get functionallity similar to the way Outlook sorts messages.

Today
Item1
Item2
Item3
Yesterday
Item1
Item2
Item3
Last Week
Item1
Item2
Item3

Is this doable with a GridView or should I use a Repeater?

Just looking for some ideas to get me going in the right direction.

 

[Nate Bross]

So I ended up using a nested list, and nested GridViews.

Code Behind

  
            List<obj> FoundObjects;

            DataAccess da = new DataAccess(currentSession);
            FoundObjects = da.GetObjects();

            List<List<obj>> OrderedObjects = new List<List<obj>>(50);

            var x = from ojb o in FoundObjects
                    select o.GetType().InvokeMember("sortColumn", System.Reflection.BindingFlags.GetProperty, null, o, null);
            
            var distinct = Enumerable.Distinct(x);

            foreach (object sortObject in distinct)
            {
                OrderedObjects.Add((from obj o in FoundObjects
                                   where t.GetType().InvokeMember("sortColumn", System.Reflection.BindingFlags.GetProperty, null, o, null).ToString().Contains(sortObject.ToString())
                                   select o).ToList());
            }

            dgvObjects.DataSource = OrderedObjects;
            dgvObjects.DataBind();
        }

        // important piece
        protected void dgvObjects_RowDataBound(Object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                List<Task> tasks = (List<Task>)e.Row.DataItem;
                GridView gvSub = (GridView)e.Row.FindControl("dgvObjectsSub");
                gvSub.DataSource = tasks;
                gvSub.DataBind();
            }
        }

Markup

<asp:GridView AutoGenerateColumns="false"
                runat="server"
                Width="100%"
                ID="dgvObjects" 
                AllowSorting="true"
                OnRowDataBound="dgvObjects_RowDataBound">
                <Columns>
                    <asp:TemplateField>
                        <ItemTemplate>
                               <asp:GridView runat="server"
                                ID="dgvObjectsSub" 
                                AutoGenerateColumns="False" 
                                CellPadding="4" 
                                AllowPaging="True"
                                AllowSorting="true"
                                BorderStyle="None"
                                BorderWidth="0px" 
                                GridLines="None"
                                Width="100%"
                                Height="100%"
                                PageSize="4"
                                EmptyDataRowStyle-CssClass="listbold"
                                EmptyDataText="No Records Found.">
                            </asp:GridView> 
                        </ItemTemplate>
                    </asp:TemplateField>
                </Columns>
            </asp:GridView>