RadImageButton can be placed in a right-to-left environment without issues in its appearance or functionality.
In order to switch a RadImageButton to right-to-left mode,
you should set dir=rtl
to its parent HTML element or use the direction:rtl
CSS property.
You can also do this globally for the page, e.g., on the <body>, <form> or <html> element.
Note: The right-to-left support applies only for the button text, not the background image.