The application can trigger edit mode through the Gantt state, similar to the how you can trigger edit mode programmatically in the Grid. However, in this case, the Gantt edit form does not show the tabs for editing dependencies and custom model properties.
Test page with a possible JavaScript-based workaround (it requires the item to edit to be rendered:
When double-clicking a task in the Gantt Timeline, the popup edit form may not appear. Instead, the vertical blue band for task dragging may show.
The problem is more likely to occur when using a touchpad.
I am trying to make the Blazor Gantt control fill a container width and height.
If I set the height of the Gantt control to 100%, it resizes to fill the container except for the tree part of the Gantt control as it stays at whatever size the window was when it first loaded.
===== ADMIN EDIT =====
Meanwhile, as a workaround, you can add a bool flag that will refresh the whole Gantt upon resizing the container. Here is an example of this approach I have prepared at the following REPL link.The Tooltip Template of the Gantt behaves strangely in a WASM application. It flickers and does not display any information. Reproduction in REPL which is essentially a WASM app: https://blazorrepl.telerik.com/QQFEapOg56MCIhIK48.
The issue is not reproducible in a server-side application using the same code.
A REPL example to reproduce the issue is:
https://blazorrepl.telerik.com/mIuTdbuT08QWQoY319
The error is:
Adding a new appointment in the Gantt throws an System.ArgumentNullException. The issue can be reproduced only in WASM application.
Steps To Reproduce:
I have a page with a Gantt chart and a Button. The button navigates to another page in the app (NavigationManager.NavigateTo()). When I click the button an exception is thrown:
Exception trace: Error: Microsoft.JSInterop.JSException: An exception occurred executing JS interop: The JSON value could not be converted to System.Double. Path: $ | LineNumber: 0 | BytePositionInLine: 4.. See InnerException for more details. ---> System.Text.Json.JsonException: The JSON value could not be converted to System.Double. Path: $ | LineNumber: 0 | BytePositionInLine: 4.
---> System.InvalidOperationException: Cannot get the value of a token type 'Null' as a number.
1. Go to https://demos.telerik.com/blazor-ui/gantt/templates
2. Scroll to the end of the timeline horizontally
3. Move the mouse pointer to timelineTooltip appears in the wrong place