Highlight the hovered row in Gantt

Environment

Product Version	2023.2.829
Product	Gantt for Progress® Telerik® UI for ASP.NET Core

Description

How can I change the color of the hovered row in the Telerik UI for UI for ASP.NET Core Gantt ?

Solution

The example below relies on the following key steps:

1. Handle the "mouseenter" Event of a cell in the Grid.
2. Remove previously assigned "custom" class.
3. Get the index of the hovered row.
4. Add the "custom" class to the current target.
5. Add the "custom" class to the corresponding row(using the index from step 3) in the right calendar part of the Gantt.
6. Add color to the "custom" class.

7. Here is an example of the code:

      @using Kendo.Mvc.Examples.Models.Gantt;
   
      @(Html.Kendo().Gantt<TaskViewModel, DependencyViewModel>()
          .Name("gantt")
          .Columns(columns =>
          {
              columns.Bound(c => c.TaskID).Title("ID").Width(50);
              columns.Bound(c => c.Title).Editable(true).Sortable(true);
              columns.Group(g =>
              {
                  g.Bound(c => c.Start).Width(100).Editable(true).Sortable(true);
                  g.Bound(c => c.End).Width(100).Editable(true).Sortable(true);
              }).Title("Timings");
          })
          .Views(views =>
          {
              views.DayView();
              views.WeekView(weekView => weekView.Selected(true));
              views.MonthView();
          })
          .Height(700)
          .ShowWorkHours(false)
          .ShowWorkDays(false)
          .Snap(false)
          .DataSource(d => d
              .Model(m =>
              {
                  m.Id(f => f.TaskID);
                  m.ParentId(f => f.ParentID);
                  m.Field(f => f.Expanded).DefaultValue(true);
              })
              .Read("Basic_Usage_ReadTasks", "Gantt")
              .Destroy("Basic_Usage_DestroyTask", "Gantt")
              .Update(update => update.Action("Basic_Usage_UpdateTask", "Gantt").Data("onUpdateCreate"))
              .Create(create => create.Action("Basic_Usage_CreateTask", "Gantt").Data("onUpdateCreate"))
          )
          .DependenciesDataSource(d => d
              .Model(m =>
              {
                  m.Id(f => f.DependencyID);
                  m.PredecessorId(f => f.PredecessorID);
                  m.SuccessorId(f => f.SuccessorID);
              })
              .Read("Basic_Usage_ReadDependencies", "Gantt")
              .Create("Basic_Usage_CreateDependency", "Gantt")
              .Destroy("Basic_Usage_DestroyDependency", "Gantt")
          )
      )
   

     $(document).ready(function(){
           var gantt = $("#gantt").data("kendoGantt");
           gantt.wrapper.on("mouseenter", "[role='gridcell']", function(e) {       
   
             $('.custom').removeClass('custom')
             var index = $(e.target).parent().index();
             $($(e.target)[0].parentElement).addClass('custom');
             $('.k-gantt-tasks tr').eq(index).addClass('custom');
           })
     })
   

     <style>
       .custom{
         background-color: yellow !important
       }
     </style>
   

For a runnable example based on the code above, refer to the:

• REPL example on coloring the hovered row in Gantt

• Dojo example on coloring the hovered row in Gantt.

More ASP.NET Core Gantt Resources

• ASP.NET Core Gantt Documentation

• ASP.NET Core Gantt Server API

• ASP.NET Core Gantt TagHelper API

• ASP.NET Core Gantt Demos

• ASP.NET Core Gantt Product Page

• Telerik UI for ASP.NET Core Video Onboarding Course (Free for trial users and license holders)

• Telerik UI for ASP.NET Core Forums

See Also

• Telerik UI for ASP.NET Core Breaking Changes
• Telerik UI for ASP.NET Core Knowledge Base