xsharp.eu

I tried to prevent user to enter non-numeric characters in numeric textbox and put this code in TextBox_KeyPress method:

IF !Char.IsDigit(e.KeyChar) .AND. e.KeyChar != '.'
e.Handled := TRUE
ENDIF
IF e.KeyChar == ','
e.Handled := TRUE
ENDIF

and I got this error message:

error XS0019: Operator '!=' cannot be applied to operands of type 'char' and 'string'
error XS0019: Operator '==' cannot be applied to operands of type 'char' and 'string'

What is right operand?

Zeljko

Depends which Dialect you are using. If "VO", '.' is read as another syntax of "." - hence the error. IIRC, you could denote the type like c'.'

It works. Thank you Karl.

Zeljko