Context Menu in ASP.NET Core Kanban

24 Sep 202124 minutes to read

Context menu is used to improve user action with Kanban using popup menu. It can be shown by defining [kanbancontext-menu-settings.enable] as true. Context menu has option to add default items in [kanbancontext-menu-settings.MenuItems] and customized items in [kanbancontext-menu-settings.custom-menu-items].

Default Context Menu items

Please find the below table for default context menu items and its actions.

Section Context menu items Action
Header Hide Column Hide the current column
Visible Columns Show the column if already hidden
Content Add Card Start Add new card
Card Edit Card Start Edit in current card
Delete Card Delete the current card
Top of Row Move the card to Top of Row
Bottom of Row Move the card to Bottom of Row
Move Up Move the card in Up direction
Move Down Move the card in Down direction
Move Left Move the card in Left direction
Move Right Move the card in Right direction
Move to Swimlane Move the card to Swim lane which is chosen from given list
Print Card Print the specific card

The following code example describes the above behavior.

<ej-kanban id="KanbanBoard" key-field="Status" dataSource="ViewBag.datasource">
     <e-kanbancolumns>
        <e-kanbancolumn header-text="Backlog" key=@(new List<string>(){"Open"})  >
        </e-kanbancolumn>
        <e-kanbancolumn header-text="In Progress" key=@(new List<string>() {"InProgress"}) ></e-kanbancolumn>
        <e-kanbancolumn header-text="Testing" key=@(new List<string>() { "Testing" }) ></e-kanbancolumn>
        <e-kanbancolumn header-text="Done" key=@(new List<string>() {"Close"}) ></e-kanbancolumn>
     </e-kanbancolumns>
     <e-kanbanfield content="Summary" primary-key="Id">
     </e-kanbanfield>
   <e-kanbancontext-menu-settings enable="true">
     </e-kanbancontext-menu-settings>
     <e-kanbanedit-settings allow-editing="true" allow-adding="true">
        <e-kanbanedit-items>
            <e-kanbanedit-item field="Id" edit-type="String"></e-kanbanedit-item>
            <e-kanbanedit-item field="Status" edit-type="Dropdown"></e-kanbanedit-item>
            <e-kanbanedit-item field="Assignee" edit-type="Dropdown"></e-kanbanedit-item>
            <e-kanbanedit-item field="Estimate" edit-type="Numeric"></e-kanbanedit-item>
            <e-kanbanedit-item field="Summary" edit-type="TextArea"></e-kanbanedit-item>
        </e-kanbanedit-items>
   </e-kanbanedit-settings>
</ej-kanban>
public partial class KanbanBoardController : Controller
    {
        List<Tasks> Task = new List<Tasks>();

        public ActionResult Default()
        {
            Task.Add(new Tasks(1, "Open", "Analyze the new requirements gathered from the customer.", "Story", "Low", "Analyze,Customer", 3.5, "Nancy", "../content/images/kanban/1.png", 1));
            Task.Add(new Tasks(2, "InProgress", "Improve application performance", "Improvement", "Normal", "Improvement", 6, "Andrew Fuller", "../content/images/kanban/2.png", 1));
            Task.Add(new Tasks(3, "Open", "Arrange a web meeting with the customer to get new requirements.", "Others", "Critical", "Meeting", 5.5, "Janet Leverling", "../content/images/kanban/3.png", 2));
            Task.Add(new Tasks(4, "InProgress", "Fix the issues reported in the IE browser.", "Bug", "Release Breaker", "IE", 2.5, "Janet Leverling", "../content/images/kanban/3.png", 2));
            Task.Add(new Tasks(5, "Testing", "Fix the issues reported by the customer.", "Bug", "Low", "Customer", 3.5, "Steven walker", "../content/images/kanban/5.png", 1));
            Task.Add(new Tasks(6, "Close", "Arrange a web meeting with the customer to get the login page requirements.", "Others", "Low", "Meeting", 2, "Michael Suyama", "../content/images/kanban/6.png", 1));
            Task.Add(new Tasks(7, "Validate", "Validate new requirements", "Improvement", "Low", "Validation", 1.5, "Robert King", "../content/images/kanban/7.png", 4));
            Task.Add(new Tasks(8, "Close", "Login page validation", "Story", "Release Breaker", "Validation,Fix", 2.5, "Laura Callahan", "../content/images/kanban/8.png", 2));
            Task.Add(new Tasks(9, "Testing", "Fix the issues reported in Safari browser.", "Bug", "Release Breaker", "Fix,Safari", 1.5, "Nancy", "../content/images/kanban/1.png", 2));
            Task.Add(new Tasks(10, "Close", "Test the application in the IE browser.", "Story", "Low", "Testing,IE", 5.5, "Margaret", "../content/images/kanban/4.png", 3));
            Task.Add(new Tasks(11, "Validate", "Validate the issues reported by the customer.", "Story", "High", "Validation,Fix", 1, "Steven walker", "../content/images/kanban/5.png", 5));
            Task.Add(new Tasks(12, "Testing", "Check Login page validation.", "Story", "Release Breaker", "Testing", 0.5, "Michael Suyama", "../content/images/kanban/6.png", 3));
            Task.Add(new Tasks(13, "Open", "API improvements.", "Improvement", "High", "Grid,API", 3.5, "Robert King", "../content/images/kanban/7.png", 3));
            Task.Add(new Tasks(14, "InProgress", "Add responsive support to application", "Epic", "Critical", "Responsive", 6, "Laura Callahan", "../content/images/kanban/8.png", 3));
            Task.Add(new Tasks(15, "Open", "Show the retrieved data from the server in grid control.", "Story", "High", "Database,SQL", 5.5, "Margaret", "../content/images/kanban/4.png", 4));
            ViewBag.datasource = Task;
            return View();
        }
    }
    public class Tasks
    {
        public Tasks()
        {
        }
        public Tasks(int Id, string Status, string Summary, string Type, string Priority, string Tags, double Estimate, string Assignee, string ImageUrl, int RankId)
        {
            this.Id = Id;
            this.Status = Status;
            this.Summary = Summary;
            this.Type = Type;
            this.Priority = Priority;
            this.Tags = Tags;
            this.Estimate = Estimate;
            this.Assignee = Assignee;
            this.ImageUrl = ImageUrl;
            this.RankId = RankId;
        }
        public int Id { get; set; }
        public string Status { get; set; }
        public string Summary { get; set; }
        public string Type { get; set; }
        public string Priority { get; set; }
        public string Tags { get; set; }
        public double Estimate { get; set; }
        public string Assignee { get; set; }
        public string ImageUrl { get; set; }
        public int RankId { get; set; }
    }

The following output is displayed as a result of the above code example.

Default Context Menu items

Default Context Menu

Custom Context Menu

Custom context menu is used to create your own menu item and its action. To add customized context menu items, you need to use [kanbancontext-menu-settings.kanbancustom-menu-items] property and to bind required actions for this, use context-click event.

The following code example describes the above behavior.

<ej-kanban id="KanbanBoard" key-field="Status" dataSource="ViewBag.datasource" context-click="contextClick">
     <e-kanbancolumns>
        <e-kanbancolumn header-text="Backlog" key=@(new List<string>(){"Open"})  >
        </e-kanbancolumn>
        <e-kanbancolumn header-text="In Progress" key=@(new List<string>() {"InProgress"}) ></e-kanbancolumn>
        <e-kanbancolumn header-text="Done" key=@(new List<string>() {"Close"}) ></e-kanbancolumn>
     </e-kanbancolumns>
     <e-kanbanfield content="Summary" primary-key="Id" swimlane-key="Assignee" tag="Tags">
     </e-kanbanfield>
     <e-kanbancontext-menu-settings enable="true" menu-items=@(new List<string>() {" "})>
       <e-kanbancustom-menu-items>
            <e-kanbancustom-menu-item text="Clear Selection"></e-kanbancustom-menu-item>
       </e-kanbancustom-menu-items>
     </e-kanbancontext-menu-settings>
     <e-kanbanedit-settings allow-editing="true" allow-adding="true">
        <e-kanbanedit-items>
            <e-kanbanedit-item field="Id" edit-type="String"></e-kanbanedit-item>
            <e-kanbanedit-item field="Status" edit-type="Dropdown"></e-kanbanedit-item>
            <e-kanbanedit-item field="Assignee" edit-type="Dropdown"></e-kanbanedit-item>
            <e-kanbanedit-item field="Estimate" edit-type="Numeric"></e-kanbanedit-item>
            <e-kanbanedit-item field="Summary" edit-type="TextArea"></e-kanbanedit-item>
        </e-kanbanedit-items>
     </e-kanbanedit-settings>
</ej-kanban>

@section ScriptSection{
<script type="text/javascript">
    function contextClick(args) {
         if (args.text == "Clear Selection")
              this.KanbanSelection.clear();
    }
</script>
}
public partial class KanbanBoardController : Controller
    {
        List<Tasks> Task = new List<Tasks>();

        public ActionResult Default()
        {
            Task.Add(new Tasks(1, "Open", "Analyze the new requirements gathered from the customer.", "Story", "Low", "Analyze,Customer", 3.5, "Nancy", "../content/images/kanban/1.png", 1));
            Task.Add(new Tasks(2, "InProgress", "Improve application performance", "Improvement", "Normal", "Improvement", 6, "Andrew Fuller", "../content/images/kanban/2.png", 1));
            Task.Add(new Tasks(3, "Open", "Arrange a web meeting with the customer to get new requirements.", "Others", "Critical", "Meeting", 5.5, "Janet Leverling", "../content/images/kanban/3.png", 2));
            Task.Add(new Tasks(4, "InProgress", "Fix the issues reported in the IE browser.", "Bug", "Release Breaker", "IE", 2.5, "Janet Leverling", "../content/images/kanban/3.png", 2));
            Task.Add(new Tasks(5, "Testing", "Fix the issues reported by the customer.", "Bug", "Low", "Customer", 3.5, "Steven walker", "../content/images/kanban/5.png", 1));
            Task.Add(new Tasks(6, "Close", "Arrange a web meeting with the customer to get the login page requirements.", "Others", "Low", "Meeting", 2, "Michael Suyama", "../content/images/kanban/6.png", 1));
            Task.Add(new Tasks(7, "Validate", "Validate new requirements", "Improvement", "Low", "Validation", 1.5, "Robert King", "../content/images/kanban/7.png", 4));
            Task.Add(new Tasks(8, "Close", "Login page validation", "Story", "Release Breaker", "Validation,Fix", 2.5, "Laura Callahan", "../content/images/kanban/8.png", 2));
            Task.Add(new Tasks(9, "Testing", "Fix the issues reported in Safari browser.", "Bug", "Release Breaker", "Fix,Safari", 1.5, "Nancy", "../content/images/kanban/1.png", 2));
            Task.Add(new Tasks(10, "Close", "Test the application in the IE browser.", "Story", "Low", "Testing,IE", 5.5, "Margaret", "../content/images/kanban/4.png", 3));
            Task.Add(new Tasks(11, "Validate", "Validate the issues reported by the customer.", "Story", "High", "Validation,Fix", 1, "Steven walker", "../content/images/kanban/5.png", 5));
            Task.Add(new Tasks(12, "Testing", "Check Login page validation.", "Story", "Release Breaker", "Testing", 0.5, "Michael Suyama", "../content/images/kanban/6.png", 3));
            Task.Add(new Tasks(13, "Open", "API improvements.", "Improvement", "High", "Grid,API", 3.5, "Robert King", "../content/images/kanban/7.png", 3));
            Task.Add(new Tasks(14, "InProgress", "Add responsive support to application", "Epic", "Critical", "Responsive", 6, "Laura Callahan", "../content/images/kanban/8.png", 3));
            Task.Add(new Tasks(15, "Open", "Show the retrieved data from the server in grid control.", "Story", "High", "Database,SQL", 5.5, "Margaret", "../content/images/kanban/4.png", 4));
            ViewBag.datasource = Task;
            return View();
        }
    }
    public class Tasks
    {
        public Tasks()
        {
        }
        public Tasks(int Id, string Status, string Summary, string Type, string Priority, string Tags, double Estimate, string Assignee, string ImageUrl, int RankId)
        {
            this.Id = Id;
            this.Status = Status;
            this.Summary = Summary;
            this.Type = Type;
            this.Priority = Priority;
            this.Tags = Tags;
            this.Estimate = Estimate;
            this.Assignee = Assignee;
            this.ImageUrl = ImageUrl;
            this.RankId = RankId;
        }
        public int Id { get; set; }
        public string Status { get; set; }
        public string Summary { get; set; }
        public string Type { get; set; }
        public string Priority { get; set; }
        public string Tags { get; set; }
        public double Estimate { get; set; }
        public string Assignee { get; set; }
        public string ImageUrl { get; set; }
        public int RankId { get; set; }
    }

The following output is displayed as a result of the above code example.

Custom Context Menu

Sub Context Menu

Sub context menu is used to add customized sub menu to the custom context menu item. To add a sub context menu, you need to use [kanbancontext-menu-settings.sub-menu] property and to bind required actions for this, use context-click event.

The following code example describes the above behavior.

<ej-kanban id="KanbanBoard" key-field="Status" dataSource="ViewBag.datasource" context-click="contextClick">
    <e-kanbancolumns>
        <e-kanbancolumn header-text="Backlog" key=@(new List<string>(){"Open"})  >
        </e-kanbancolumn>
        <e-kanbancolumn header-text="In Progress" key=@(new List<string>() {"InProgress"}) ></e-kanbancolumn>
        <e-kanbancolumn header-text="Done" key=@(new List<string>() {"Close"}) ></e-kanbancolumn>
    </e-kanbancolumns>
    <e-kanbanfield content="Summary" primary-key="Id" swimlane-key="Assignee" tag="Tags">
    </e-kanbanfield>
     <e-kanbancontext-menu-settings enable="true" menu-items=@(new List<string>() {" "})>
       <e-kanbancustom-menu-items>
            <e-kanbancustom-menu-item text="Clear Selection"></e-kanbancustom-menu-item>
           <e-kanbancustom-menu-item text="Move to Column" template="#submenu"></e-kanbancustom-menu-item>
       </e-kanbancustom-menu-items>
    </e-kanbancontext-menu-settings>
    <e-kanbanedit-settings allow-editing="true" allow-adding="true">
        <e-kanbanedit-items>
            <e-kanbanedit-item field="Id"></e-kanbanedit-item>
            <e-kanbanedit-item field="Status" edit-type="Dropdown"></e-kanbanedit-item>
            <e-kanbanedit-item field="Assignee" edit-type="Dropdown"></e-kanbanedit-item>
            <e-kanbanedit-item field="Estimate" edit-type="Numeric"></e-kanbanedit-item>
            <e-kanbanedit-item field="Summary" edit-type="TextArea"></e-kanbanedit-item>
        </e-kanbanedit-items>
    </e-kanbanedit-settings>
</ej-kanban>
<ul id="submenu">
    <li><a>Open</a></li>
    <li><a>InProgress</a></li>
    <li><a>Close</a></li>
</ul>

<script type="text/javascript">
    function contextClick(args) {
                    if (args.text == "Clear Selection")
                        this.KanbanSelection.clear();
                    else if (args.text != "Move to Column")
                        this.updateCard(args.cardData.Id, args.cardData);
    }

</script>
public partial class KanbanBoardController : Controller
    {
        List<Tasks> Task = new List<Tasks>();

        public ActionResult Default()
        {
            Task.Add(new Tasks(1, "Open", "Analyze the new requirements gathered from the customer.", "Story", "Low", "Analyze,Customer", 3.5, "Nancy", "../content/images/kanban/1.png", 1));
            Task.Add(new Tasks(2, "InProgress", "Improve application performance", "Improvement", "Normal", "Improvement", 6, "Andrew Fuller", "../content/images/kanban/2.png", 1));
            Task.Add(new Tasks(3, "Open", "Arrange a web meeting with the customer to get new requirements.", "Others", "Critical", "Meeting", 5.5, "Janet Leverling", "../content/images/kanban/3.png", 2));
            Task.Add(new Tasks(4, "InProgress", "Fix the issues reported in the IE browser.", "Bug", "Release Breaker", "IE", 2.5, "Janet Leverling", "../content/images/kanban/3.png", 2));
            Task.Add(new Tasks(5, "Testing", "Fix the issues reported by the customer.", "Bug", "Low", "Customer", 3.5, "Steven walker", "../content/images/kanban/5.png", 1));
            Task.Add(new Tasks(6, "Close", "Arrange a web meeting with the customer to get the login page requirements.", "Others", "Low", "Meeting", 2, "Michael Suyama", "../content/images/kanban/6.png", 1));
            Task.Add(new Tasks(7, "Validate", "Validate new requirements", "Improvement", "Low", "Validation", 1.5, "Robert King", "../content/images/kanban/7.png", 4));
            Task.Add(new Tasks(8, "Close", "Login page validation", "Story", "Release Breaker", "Validation,Fix", 2.5, "Laura Callahan", "../content/images/kanban/8.png", 2));
            Task.Add(new Tasks(9, "Testing", "Fix the issues reported in Safari browser.", "Bug", "Release Breaker", "Fix,Safari", 1.5, "Nancy", "../content/images/kanban/1.png", 2));
            Task.Add(new Tasks(10, "Close", "Test the application in the IE browser.", "Story", "Low", "Testing,IE", 5.5, "Margaret", "../content/images/kanban/4.png", 3));
            Task.Add(new Tasks(11, "Validate", "Validate the issues reported by the customer.", "Story", "High", "Validation,Fix", 1, "Steven walker", "../content/images/kanban/5.png", 5));
            Task.Add(new Tasks(12, "Testing", "Check Login page validation.", "Story", "Release Breaker", "Testing", 0.5, "Michael Suyama", "../content/images/kanban/6.png", 3));
            Task.Add(new Tasks(13, "Open", "API improvements.", "Improvement", "High", "Grid,API", 3.5, "Robert King", "../content/images/kanban/7.png", 3));
            Task.Add(new Tasks(14, "InProgress", "Add responsive support to application", "Epic", "Critical", "Responsive", 6, "Laura Callahan", "../content/images/kanban/8.png", 3));
            Task.Add(new Tasks(15, "Open", "Show the retrieved data from the server in grid control.", "Story", "High", "Database,SQL", 5.5, "Margaret", "../content/images/kanban/4.png", 4));
            ViewBag.datasource = Task;
            return View();
        }
    }
    public class Tasks
    {
        public Tasks()
        {
        }
        public Tasks(int Id, string Status, string Summary, string Type, string Priority, string Tags, double Estimate, string Assignee, string ImageUrl, int RankId)
        {
            this.Id = Id;
            this.Status = Status;
            this.Summary = Summary;
            this.Type = Type;
            this.Priority = Priority;
            this.Tags = Tags;
            this.Estimate = Estimate;
            this.Assignee = Assignee;
            this.ImageUrl = ImageUrl;
            this.RankId = RankId;
        }
        public int Id { get; set; }
        public string Status { get; set; }
        public string Summary { get; set; }
        public string Type { get; set; }
        public string Priority { get; set; }
        public string Tags { get; set; }
        public double Estimate { get; set; }
        public string Assignee { get; set; }
        public string ImageUrl { get; set; }
        public int RankId { get; set; }
    }

The following output is displayed as a result of the above code example.

Sub Context Menu