The WinForms Watermark Text (banner text) Provider allows users to display watermark text for any edit control without requiring any additional customization. It supports clearing the watermark text when the control is in edit mode or when the control gets focus. The watermark text can be formatted by customizing the text color, font, and more.
They specify the rendering mode of the banner text.
Focus Mode: The banner text disappears when the control gets focus.
Edit Mode: The banner text disappears only when the control is in edit mode or when the associated text box is not empty.