Using as an example of starting the April 30 version 4.1.7.0429 version AjaxControlToolkitSampleSite.zip shifting the focus on the textbox the page is not erased the mask, the result is visible in the attached figure.
Comments: By now this should have been identified as a bug and prioritized as such. The voting system for this site is useless. There are legitimate bugs that do not get prioritized because of higher vote counts on old feature suggestions.
Comments: By now this should have been identified as a bug and prioritized as such. The voting system for this site is useless. There are legitimate bugs that do not get prioritized because of higher vote counts on old feature suggestions.