"Undo" TaskBoard Card Movement in OnMove event.

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Headygains
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Headygains asked on 21 Oct 2021, 05:01 PM

Hello, I'm attempting to "undo" an "invalid" card move on a taskboard between 2 cols with specified states.

I'll add the HtmlHelper code:


@(Html.Kendo().TaskBoard()
    .Name("kittingTaskBoard")
    .ColumnSettings(s =>
    {
        s.TemplateId("column-template");
        s.Width("320");
        s.Buttons(b =>
        {

        });

    })
    .Columns(c =>
    {
        c.Add().Text("On Hold").Status("2");
        c.Add().Text("New").Status("1");
        c.Add().Text("In Work").Status("3");
        c.Add().Text("Staged").Status("4");
        c.Add().Text("Verified").Status("5");
    })
    .Editable(false)
    .DataDescriptionField("ShipNumber")
    .DataTitleField("Control")
    //.DataOrderField("PriorityId")
    .DataStatusField("StatusId") 
    .TemplateId("card-template")
    .Events(events => events.MoveStart("onKitSessionStartMove").MoveEnd("onKitSessionMove"))
    .DataSource(source => source.Ajax().Read(read => read.Action("GetKittingQueue", "Fulfillment")))
    .Height("980")
    .Events(ev => ev.DataBound("onDataBound").ColumnsDataBound("onColumnsDataBound")))

I'll add the validation code:


        const manager = {
            claim: function(id, uid) {
                $.ajax('@Url.Action("ClaimKitSession", "Fulfillment")',
                    {
                        method: "Post",
                        data: getAntiForgeryToken({ id })
                    }).done(function(response) {
                    notify(response);
                }).fail(function(error) {
                    notify(error.responseJSON);
                });
            },
            valid: function(from, to) {
                console.log(`[valid]: ${from} > ${to}`);
                if ((from === "3" && to === "1") // InWork > New
                        ||
                        (from === "3" && to === "2") // InWork > OnHold
                        ||
                        (from === "4" && to === "3") // Staged > InWork
                        ||
                        (from === "5" && to === "4") // Verified > Staged
                        ||
                        (from === "1" && to === "4") // New > Staged
                        ||
                        (from === "1" && to === "5") // New > Verified
                ) {
                    return false;
                }
                return true;
            }
        }


I'll add the Move Event code:


        function onKitSessionStartMove(e) {
            state.card = null;
            state.col = "0";
        }

        function onKitSessionMove(e) {
            if (state.card !== null) {
                if (!isUndefined(e.card)) {
                    if (e.card.RowId === state.card.RowId) {
                        if (!isUndefined(e.column)) {
                            if (e.column.Status === state.col) {
                                return;
                            }
                        }
                    }
                }
            } else {
                state.card = e.card;
                state.col = e.column.Status;
                return;
            }
            state.card = e.card;
            state.prev = state.col;
            state.col = e.column.Status;

            setBadgeText();

            if (manager.valid(state.prev, state.col)) {
                if (state.col === "3") {
                    manager.claim(state.card.RowId);
                }
            } else {
                toastr.warning("Invalid action prevented, you do not have permission to perform this action",
                    "Warning",
                    { positionClass: "toast-bottom-right", containerId: "toast-bottom-right" });
            }

        }

I was wondering If i could there was a card function or something I can call when the validation fails to move it back to it's previous column?

1 Answer, 1 is accepted

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Ivan Danchev
Telerik team
answered on 26 Oct 2021, 01:18 PM

Hello Dalton,

You can prevent the MoveEnd event conditionally. So you can have your logic do the respective validation in the MoveEnd event handler, and if the validation fails, you can prevent the event by calling e.preventDefault()

As a result the card will move back to the column it was dragged from.

Regards,
Ivan Danchev
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Headygains
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Ivan Danchev
Telerik team
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