Bryntum Support Forums

• Component Version: @bryntum/gantt": "5.1.1", "@bryntum/gantt-react": "5.1.1"

• Chrome Version: 105.0.5195.102, OS[/list]

We are using the Gantt component and have added checkboxes to toggle on/off CriticalPath, Baseline, and TaskLabels.

If a user doesn't "un-check" the CriticalPath box and navigates to another page, the app blows up giving a TypeError: this.client.project.getGraph is not a function and it says the error occurs in the <BryntumGantt> component.

Any debugging you've done so far

• Tried adding a useEffect to clear the state before the component unmounted (that didn't work)
• As a workaround, ended up wrapping the Gantt component in an ErrorBoundary component, but wanted to report the issue in case others come across it.

Code Snippet

<BryntumGantt
            criticalPathsFeature={{
              disabled: !scheduleViewState.showCriticalPath,
            }}
            {...otherProps}
          />

<Checkbox
              label="Show Critical Path"
              selected={scheduleViewState.showCriticalPath}
              onChange={(val) => {
                setScheduleViewState((prevState) => ({
                  ...prevState,
                  showCriticalPath: val,
                }));
              }}
            />

Error Message
See screen shot below.

Video Link:
https://www.loom.com/share/27ed65dd378d4de28e3e189756749761

Screenshots

How can we reproduce this? I tried to destroy Gantt with CP enabled but didn't see a crash.