When selecting the Month View of the Gantt, unexpected blank space appears and the cell headers are not properly aligned.

To reproduce the problem, open this demo:
https://demos.telerik.com/kendo-ui/gantt/basic-usage

And Click Edit in Kendo UI Dojo:
https://dojo.telerik.com/OparoYUJ

Zoom out the browser so the Gantt has some larger Width and you will notice the blank space + misaligned headers:

The same issue can be observed in the Getting article: https://docs.telerik.com/kendo-ui/controls/gantt/get-started

I would like to be able to reorder rows (items) by drag and drop but I want to disable them nesting. I would like to be possible to configure whether dropping a task would create a nested task or just reorder the tasks.

It would be great if text within the Treelist section of the Gantt chart would wrap.

Configuring the rowHeight increases the height of the table row, but the long text is still not wrapped. Here is a sample dojo demonstrating the current behavior: https://dojo.telerik.com/EtEViREL

An ideal solution would be something that increases the size of the corresponding timeline row to match the treeview row, and to move down things like dependency arrows so it looks like everything still matched properly.

Reproduction:

1. Open https://demos.telerik.com/kendo-ui/gantt/pdf-export
2. Click "Export to PDF" and open file
3. Actual result: there's a lot of blank space on the right
4. Expected result: the margin should correspond to the pdf.margin.right option
   

I have a gantt chart with tasks, resources, and assignments. I want to enforce a many-to-one relationship between tasks and resources, that is, I want to be able to assign a single resource to any number of tasks, but each task can only have 1 resource at a time. A (conceptually) simple sample implementation would be to change the checkboxes to a radiobutton in the 'assign' dialog window, from the 'edit' dialog.

I understand there is currently no way to enforce this type of relationship or the restrict the user from selecting more than 1 assignment in the assignment dialog window, so I am requesting a way to do either (or both) of these things. I would imagine a setting in the gantt or taskDataSource for enforcing the relationship, or a setting in the assignment field for switching the dialog box to radio button like behaviour.

I am Working With Gantt in AngularJs, but I dont found way to make the Critical Path And Baseline in Gantt. 

is this possible?

 

https://dojo.telerik.com/UtUtiQER

A working example of the bug is at https://dojo.telerik.com/EPuqExOg with a simple workaround until the bug is fixed.

Currently, the percentage textbox doesn't work when in the German language.

The date textboxes localize ok.

You can have thousands of lines (rows) of project data....you can't load the entire plan and scroll through it

The Gantt widget has support for parent-child relationship, but the hierarchy only works, if the title property of a gantt task is used in column definitions. So if you have for example only an ID column in your column definition, you can not expand/shrink hierarchy.

Suggested improvement: make this option configurable via the columns declaration by adding "expandable: true/false" or make the hierarchy appear in the first column if the title property is not in the columns declaration.

We have been looking into the possiblity of using Telerik Test Studio; however, the Gantt Chart control from Kendo is a key part of our application, and having a Translator to help with validating the control contents would be really helpful.

When rendering this minimal DOJO containing a Kendo-UI Gantt chart in Chrome, space in the grid header is reserved for the vertical scrollbar on the right hand side:

When using Firefox, space is still reserved, although scrollbars collapse by default and therefore do not need any space:

When a user switches from navigating by mouse to navigating by keyboard, the focused element in the overview grid is not synchronized. Please follow the instructions below to reproduce the issue using this DOJO:

• click e.g. on the first cell in the "id" column
• using your arrow keys, move the keyboard focus to the last cell of the "id" column
• click the checkbox in the first row (keyboard focus is now lost)
• press the enter key (keyboard focus reappears in the last cell of the "id" column)

Wouldn't a user expect the cell he/she just clicked to be focused? The keyboard focus should be updated even when navigating by mouse.

 

Bug report

When tasks on the same level are dragged and dropped in order to change their relationship as parent - child, the entire Gantt collapses

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/@NeliK/EZOXuguC
2. Expand 'Task 1'
3. Drag Task 4 over Task 5 and drop it so it could become its child

Current behavior

The entire Gantt is collapsed.

Expected/desired behavior

The current expanded/collapsed state should not be changed.

The issue is a regression starting with version 2020.3.1021

Environment

• Kendo UI version: 2024.2.514
• Browser: [all ]

Bug report

When the autoSync option of the GanttDependencyDataSource is set to true, two identical requests are sent to the server when creating a new dependency.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/AGOJUyAp
2. Open the Network Tab
3. Create a new task dependency

Current behavior

Two identical Create requests are sent to the server

Expected/desired behavior

Only one request should be sent to the server

Environment

• Kendo UI version: 2023.1.314
• Browser: [all]

As all grids, the kendo Gantt chart's rows change their color when hovering. However, the background overlaps the border between columns and makes them disappear for the hovered row.

You can reproduce the described behavior by hovering one of the rows in this DOJO.

Bug report

Error is thrown in the console when an event is dragged.

Reproduction of the problem
Dojo: https://dojo.telerik.com/ORuSEYoW

Expected/desired behavior
Error shall not appear

 

Environment
Kendo UI version: [all]
jQuery version: [all]
Browser: all

Bug report

When there is a selected item and filtering is performed in the Gantt, sometimes a task in the new filter result is displayed as selected.

Reproduction of the problem

1. Open the demo - https://demos.telerik.com/kendo-ui/gantt/columns
2. Filter the tasks by ID 18
3. Select the task with ID = 18
4. Filter the tasks that have ID equal to 11

Current behavior

Sometimes the task with ID 11 is marked as selected. The issue does not appear consistently, so you may need to perform the test multiple times.
screencast - https://somup.com/c0XZ6DgaRA

Expected/desired behavior

The tasks that have not been selected, should not be displayed as selected after filtering.

The issue is a regression starting with the 2022 R1 release

Environment

• Kendo UI version: 2023.3.1114
• Browser: [all]

Bug report

When there are Grid and Gantt on the same page and a column in the Gantt has reordered an error in the console is thrown:
kendo.all.js:133531 Uncaught TypeError: Cannot read properties of undefined (reading 'lockable')

Reproduction of the problem

1. Open the Dojo. There is no relation in the configuration between the Grid and the Gantt widgets.
2. Reorder the columns in Gantt

Current behavior

The following error is thrown:
kendo.all.js:133531 Uncaught TypeError: Cannot read properties of undefined (reading 'lockable')

Expected/desired behavior

There should be no error in the console when reordering columns in Gantt, even if there is a Grid on the page.

The issue is a regression starting with: 2021.3.1207

Environment

• Kendo UI version: 2022.2.802
• Browser: [all]

Bug report

When the culture is changed the NumericTextBox with decimals does not accept valid values when it is rendered inside an editable popup. The issue can be observed when the NumericTextBox is rendered for editing in other components such as Gantt and Grid.

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/@gdenchev/UKAVAnaZ
2. Try to edit a cell and decrease the number either by entering digits or by using the arrows.

Current behavior

A validation error that the value is not valid appears.
The same behavior occurs in the Gantt component if you try to edit a task, then select Resources and try to edit the Units value - https://dojo.telerik.com/@NeliK/uZepIbId

Expected/desired behavior

The value of the NumericTextBox should accept changes when the culture is set.

Environment

• Kendo UI version: 2024.1.319
• jQuery version: x.y
• Browser: [all ]

Bug report

In a Gantt that has a DropDownList as editor in the TreeList, if you click on the DropDownList's wrapper to open the widget, it will close the cell instead.

Regression introduced with 2022 R1

Reproduction of the problem

1. Open this example - https://dojo.telerik.com/OlOCIkOZ/3
2. Double click to edit the Status field
3. Click on the DropDownList wrapper.

Current behavior

The cell closes.

Expected/desired behavior

The cell should remain open and the DropDownList should open

Environment

• Kendo UI version: 2022.2.621
• Browser: [all]