How is the WinForms MaskedEditBox control derived from WinForms TextBox control?
MaskedEditBox
The MaskedEditBox is derived from the Windows Forms text box control. The Masking behavior is implemented by adding appropriate properties and methods to the derived control. The basic functionality of text box control in terms of events, properties, and methods is left intact.
Reference link: https://help.syncfusion.com/windowsforms/maskedtextbox/overview