Refreshing a form when editing/inserting with a UserControl

[immitev]

I have a grid that uses a custom UserControl for editing/inserting

I have two issues, that I am trying to solve for awhile, without success:

1) UserControl does not hide when canceling inserts (only when canceling updates)

        private void bCancel_Click(object sender, ImageClickEventArgs e)
        {
            if (_ParentForm != null)
            {
                _ParentForm.ShowReleasesList(_ProductNoderef);
            }

            GridEditableItem editedItem = Parent.NamingContainer as GridEditableItem;
            if (editedItem != null)
            {
                editedItem.Edit = false;
                editedItem.OwnerTableView.ClearEditItems();
                editedItem.OwnerTableView.OwnerGrid.PrepareRowsRecursive(editedItem.OwnerTableView);
                editedItem.OwnerTableView.OwnerGrid.PrepareRowsVisibilityRecursive(editedItem.OwnerTableView);
            }
        }

2) The grid does not refresh when changing/inserting an item

        private void UpdateGrid(GridEditableItem editedItem)
        {
            WorkPackage wp = WorkPackage.GetByHandle(ValDataSet, _WorkPackNoderef);

            IEnumerable<WorkPackDetails> previousWorkPacks = (IEnumerable<WorkPackDetails>)editedItem.OwnerTableView.OwnerGrid.DataSource;

            WorkPackDetails details = editedItem.DataItem as WorkPackDetails;
            if (details != null)
            {
                // in Update Mode update the workpack details
                details.FillAttributes(wp);
                details.FillReleasesDetails(wp, ValDataSet);

                List<WorkPackDetails> updatedWorkpacks = new List<WorkPackDetails>(previousWorkPacks);
                editedItem.OwnerTableView.OwnerGrid.DataSource = updatedWorkpacks;
            }
            else
            {
                // In Insert Mode add a new workpack
                details = WorkPackDetails.GetDetailsFromWorkPack(wp, ValDataSet);
                List<WorkPackDetails> updatedWorkpacks = new List<WorkPackDetails>(previousWorkPacks);
                updatedWorkpacks.Add(details);
                editedItem.OwnerTableView.OwnerGrid.DataSource = updatedWorkpacks;
            }

            //editedItem.Edit = false;
            editedItem.OwnerTableView.ClearEditItems();
            editedItem.OwnerTableView.OwnerGrid.Rebind();
        }

[immitev]

Some parts of the code were just wrong. Here is what works:

1) Canceling Edits:

        private void bCancel_Click(object sender, ImageClickEventArgs e)
        {
            GridEditableItem editedItem = Parent.NamingContainer as GridEditableItem;
            if (editedItem != null)
            {
                editedItem.OwnerTableView.IsItemInserted = false;
                editedItem.OwnerTableView.ClearEditItems();
                editedItem.OwnerTableView.OwnerGrid.Rebind();
            }
        }

2) Updating:

The check for editedItem.DataItem  was just wrong... a good way to do it was checking editedItem.DataSetIndex >= 0

One major nuisance was that the DataSetIndex property seemed to return wrong index when the items were sorted. So I used a workaround with parsing  editedItem.KeyValues which were something like "Noderef=\"325325\""

        private void UpdateGrid(GridEditableItem editedItem)
        {
            WorkPackage workPackage = WorkPackage.GetByHandle(ValDataSet, _WorkPackNoderef);

            IEnumerable<WorkPackDetails> previousWorkPacks = (IEnumerable<WorkPackDetails>)editedItem.OwnerTableView.OwnerGrid.DataSource;

            if (editedItem.DataSetIndex >= 0 )
            {
                // in Update Mode update the workpack details
                string keys = editedItem.KeyValues;
                int startQuote = keys.IndexOf('"');
                int endQuote = keys.IndexOf('"', startQuote + 1);
                string sNoderef = keys.Substring(startQuote + 1, endQuote - startQuote - 1);
                ulong noderef = ulong.Parse(sNoderef);

                List<WorkPackDetails> updatedWorkpacks = new List<WorkPackDetails>(previousWorkPacks);
                WorkPackDetails editedWorkPack = null;
                foreach (WorkPackDetails wpd in updatedWorkpacks)
                {
                    if (wpd.Noderef == noderef)
                    {
                        editedWorkPack = wpd;
                        break;
                    }
                }

                // WorkPackDetails editedWorkPack = updatedWorkpacks[editedItem.DataSetIndex]; // does not work
                editedWorkPack.FillDetailsFromWorkPack(workPackage, ValDataSet);
                editedItem.OwnerTableView.OwnerGrid.DataSource = updatedWorkpacks;
            }
            else
            {
                // In Insert Mode add a new workpack
                WorkPackDetails newWorkPack = WorkPackDetails.GetDetailsFromWorkPack(workPackage, ValDataSet);
                List<WorkPackDetails> updatedWorkpacks = new List<WorkPackDetails>(previousWorkPacks);
                updatedWorkpacks.Add(newWorkPack);
                editedItem.OwnerTableView.IsItemInserted = false;
                editedItem.OwnerTableView.OwnerGrid.DataSource = updatedWorkpacks;
            }

            editedItem.OwnerTableView.ClearEditItems();
            editedItem.OwnerTableView.OwnerGrid.Rebind();
        }