The default width of the task pane in Office add-ins is quite small, making styling difficult when you want to display more content in it. At a 1366x768 resolution, for Excel desktop the width of the...
In addition to setting the default width, my company needs to be able to set the width programmatically. In our VSTO add-in, we remember the user's last task pane width and update to that the next time they use the add-in. This is a critical need for our Office Add-ins task pane add-in as well.