could not convert variant of type (null) into type (olestr)

Daniel Breda Santos

In FastReport VCL 5 this work's, but in FastReport VCL 6 return the title error:

var

V: string

begin

V := Report.Variables.Variables('Name');

end.

Polomint

G'day Daniel,

What action do you want to take if Variables ['Name'] is Null? If you want the variable "V" to be set to an Empty String, you should code for that. 😉

with Report.Variables do begin

if IsNull (Variables('Name')) then

   V := EmptyStr // replace by whatever action you require

else

V := Variables('Name');

end;

This is not really a FastReport problem but an outcome of mixing Variants and Strings...

Cheers, Paul