I have a Gantt Chart created and I can zoom in/out by holding CTRL + scroll wheel on mouse when viewing the chart in Tableau Desktop. Once the dashboard is published though and I view it in a browser, clicking CTRL + scroll wheel zooms in the website. Is there a different or better way to zoom in on my Gantt Chart?
As CNTRL+Scroll is a command in the browser itself, you won't be able to map it to manipulate the viz. However, I believe in Tableau Desktop if you Select
Workbook > Show Zoom Control > Hover
You'll be able to have the zoom controls appear for the worksheet and use them to zoom into you data after publishing.
Let me know if that works!