error XS0019

[vzeljko]

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

[FFF]

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'.'

[vzeljko]

It works. Thank you Karl.

Zeljko