Hi, I had some old projects which works previously.. but now encountered the below error, after I compiled it with Optimised compilation: An error occured on sub_main_numonly. NullReferenceException Continue? Sub NumOnly(x) t = "" For i = 1 To StrLength(x) y = StringMid(x,i,1) If (Asc(y)>47) AND (Asc(y)<58) Then t = t & y Next Return t End Sub what could be the problem? Thanks WZSun
Possibly this line causing a string access beyond it's length if StringMid (where is it from?) uses 0 based indexing for its' start parameter - otherwise I've no idea without more information (does it run in the IDE?) and seeing the code in context. For i = 0 to StrLength(x) -1
Hi Agraham, Both desktop and PC2003 PDA works fine without error but when the error comes about on a WM6.1 PDA Sub StringMid(strings,StartIndex,EndIndex) If StrLength(strings) < 1 Then Return Return SubString(strings,StartIndex-1,EndIndex) End Sub
Hi, I added some msgbox for debugging.. somehow on the WM6.1 pda (asus 620), the following return null value for 'x' which is then used to check the strlength(x) HWid = hw.GetDeviceID why is this so? does the getDeviceID work on WM6.1 smartphone? Or must we use IMEI or UUID detection? If so, how to detect/retrieve the deviceID? The funny thing is my PC2003 is an O2 mini while the WM6.1 is an AsusP320..both are smartphones too. Rgds WZSun
