ValidChars: String;
The ValidChars property determines a set of characters that the user can enter in the input field.
Available characters are entered as a continuous string, for example, 0123ABCD.
Executing the example requires a form, a button named Button1 on it and the MaskEdit component named MaskEdit1.
Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);
Begin
MaskEdit1.MaskEnabled := True;
MaskEdit1.Mask := " dd dd ddddd";
MaskEdit1.InputTemplate := "Phone:8-9__-__-_____";
MaskEdit1.ValidChars := "012345";
End Sub Button1OnClick;
After executing the example the template to enter the cell phone number is set for the MaskEdit1 component by clicking the button. The digits in the 0-5 range are available for the number input.
See also: