Hi,

Please, find below a demo which shows how to update a Task in the Blazor Kanban.

@page "/kanban-overview"

@using Smart.Blazor.Demos.Data
@inject RandomDataService dataService

<style>
    /* This is the CSS used in the demo */

    html,
    body {
    margin: 0;
    }
</style>
<Example Name="Kanban">
    <p>
        Kanban represents a UI component for mapping and visualizing each step of your process as a flow. The Kanban is usually named after the project you are assigned to work on.
        Every Kanban has three main sections that show the state of your tasks in the flow:
        <br /><br />
        - To Do - the area where you place the work that you plan to work on next.
        <br />- In Progress: when you start working on a particular task/card, you have to move it to "In Progress".
        <br />- Done: when the task is completed -> move it to Done.
    </p>

    @if (dataRecords == null)
    {
        <p><em>Loading...</em></p>
    }
    else
    {
        <Kanban @ref="kanbanRef"  Editable OnOpening="OpeningEvent" DataSource="dataRecords" Columns="@columns" Collapsible />
        <button class="btn btn-primary" @onclick="UpdateFirstTask">Update First Task</button>
    }
</Example>

@code {
    private Kanban kanbanRef;
    List<KanbanColumn> columns = new List<KanbanColumn>()
    {
        new KanbanColumn()
        {
            DataField = "ToDo",
            Label = "To do"
        },
        new KanbanColumn()
        {
            DataField = "InProgress",
            Label = "In progress"
        },
        new KanbanColumn()
        {
            DataField = "Testing",
            Label = "Testing"
        },
        new KanbanColumn()
        {
            DataField = "Done",
            Label = "Done"           
        }
    };

    void OpeningEvent(Event e)
    {
        KanbanOpeningEventDetail ed = e["Detail"];
        Console.WriteLine(ed);
    }

    private List<KanbanDataRecord> dataRecords;

    protected override void OnInitialized()
    {
        base.OnInitialized();
        dataRecords = dataService.GenerateKanbanData();
    }

    private void UpdateFirstTask()
    {
        if (dataRecords != null && dataRecords.Count > 0)
        {
            var updatedTask = new Dictionary<string, object>
                {
                    ["status"] = "Done",            // update the column/status
                    ["text"] = "Test"     // keep other properties unchanged
                                                    // add other fields if necessary
                };

            kanbanRef.UpdateTask(0, updatedTask); // call UpdateTask to refresh Kanban
        }
    }
}

Best regards,
Markov

Smart UI Team
https://www.htmlelements.com/