error - 'DDT.CurrentDriver' is null or not an object (jscripting)

Please see my reply here

http://smartbear.com/forums/f74/t83141/unable-to-solve-syntax-error-and-unable-to-exec/



don't pay attention to the part with try...catch, but refer to the second part about two approaches.



This is exactly your case

Hi Gena,

Once again, you are mixing the 2 DDT approaches.



In the loginfunction you shouldn't try to access CurrentDriver property.



You need something like this



var mycsv = DDT.CSVDriver("C:\foldername\filename.txt");

mycsv.DriveMethod(...)

Hi Gena,



Thank you very much for your reply, but it was syntax issue, I’m from vbscript background and now trying to work on jscript.

Many thanks,

Sam

Hi Gena,



It may sounds little funny but following script was working fine till now (scenario 1), but now it’s giving me error “'DDT.CurrentDriver' is null or not an object”. I would really appreciate if you can please let me know where I’m making mistake and send me solution to it please. In scenario 2 I have also tried same way you mentioned in your comment but having same error and funny part is that it also same sometime it works and sometime error “'DDT.CurrentDriver' is null or not an object”.



Scenario 1)



function loginfunction()

{

 DDT.CSVDriver("C:\\foldername\\filename.txt");

 DDT.CurrentDriver.DriveMethod("Unit1.search");

}

function search ()

{

UserName.keys(DDT.CurrentDriver.Value("username"));

Password.keys(DDT.CurrentDriver.Value("password"));

}

 

Scenario 2)



function loginfunction()

{

{

var mycsv;

 mycsv = DDT.CSVDriver("C:\\foldername\\filename.txt");

mycsv.DriveMethod("Unit1.search");

}

 

 

}

function search ()

{

UserName.keys(DDT.CurrentDriver.Value("username"));

Password.keys(DDT.CurrentDriver.Value("password"));

}

 

Scenario 1 is incorrect, just forget it.



Scenario 2 is correct, I have just tried it on my PC. My best guess right now is you have specified incorrect unit name (Unit1).



So just check that all parameters are specified correctly (the file exists, unit name and function name are correct, etc.).

Hi Gena,



Thank you very much for your reply, but in scenario 2 if it works 4 to 5 times correctly and then 6^th time giving error. I know it sounds strange, but for now I ll keep 2^nd scenario and let you know if it keep giving me error and if it does than may have to find work around because cannot spend lot time on only functionality :) 

Hi Gena,



I will appreciate if you can please check out following link and let me know what could be possible solution to it. 

http://smartbear.com/forums/f81/t84819/can-i-call-already-created-ddt-driver-from-one/



Many Thanks,

Sam

Done :)

Hi Gena,

 

Thank you very much for your reply, but getting error 'mycsv' is undefined.