"not valid integer value"

[Mrwb]

Hi there.. I have a quite basic problem here which I can't find the answare to since I don't know exactly what I'm looking for.. I want to check if a string is a valid integer value before doing an StrToInt(); to avoid the "not valid int value" error message. I tried adding try, except, finally, but that diddn't remove the message..

[Alimonster]

StrToIntDef tries to convert the string, and gives you back a default value if it can't convert. For example, to convert, and get back -1 if a problem occurs:

[pascal]MyInt := StrToIntDef(YourString, -1);[/pascal]

Alternatively, use exception handling:

[pascal]try
MyInt := StrToInt(YourString);
except
// a problem occurred - deal with it
MyInt := -1;
end;[/pascal]

[Mrwb]

Thanks

[cairnswm]

The Val function turns a string into an integer but allows an error code as a third parameter that indicates the first character in the string that isn;t numeric.