CelticBhoy ha scritto: > What is wrong with this line :- > > IF sElement[iLoop] = NULL THEN sElement[iLoop] = "0" > > I want to catch a null character and change it to "0". > You are using an array notation, ie, sElement[] designes an array of strings, each composed of many characters. Moreover, NULL is not the same as chr$(0), but refers to the null pointer (or an empty string), but this is different from C.
if sElement is a simple string, and assuming iLoop goes from 1 to the length of the string, then you test like this: if mid$(sElement, iLoop, 1)=chr$(0) then sElement=left$(1,iLoop-1) & "0" & mid$(sElement, iLoop+1) Note two things here: gambas does not have indexing of strings, like C. Use left$(), mid$() and so on is the way to analyze strings. This also means that you can not change a single char in a string, but you have to reconstruct the string itself. Anyway, there are more powerful instruction - see the docs about string manipulation; a single replace() could do what you want: sElement = Replace$(sElement, chr$(0), "0") If is it true that sElement should be an array of strings, then perhaps you are not looking for chr$(0), or you need two indexes, or you should provide more information about what you want to do... Cheers, -- Doriano Blengino "Listen twice before you speak. This is why we have two ears, but only one mouth." ------------------------------------------------------------------------------ _______________________________________________ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user