progress bar problem in vb
 

hi,
i am using a progress bar in a conversion program in conversion process progress bar is showing the progress of conversion , but i am using a timer increment for increase the progress bar , but when file is big due to timer is showing the process has been completed but actually file conversion is not completed .Is at any method is there which can calculate the first file size and according to this file size process gets incerement . :confused:

Re: progress bar problem in vb
 

Hi jto,

If I understand correctly you are loading a file and want the progress bar to indicate how far you have actually come in the load process - correct?

If so you could use the FileLen(<path>) function to get the length of the file initially. You store this in the MaxValue of the progress bar and keep a 'counter' to track how much of the file you have read so far by adding the length of the data you just read to it every time you do an input. Something like this:

Dim BytesRead As Long

Dim InputLine As String



ProgressBar.MinValue = 0

ProgressBar.MaxValue = FileLen(<path>)

Open <path> For Input As #1

While Not EOF(1)

   LineInput #1, InputLine

   BytesRead = BytesRead + Len(InputLine)

   ProgressBar.Value = BytesRead

Wend

Close #1

Please note that I have NOT tested this code.

Hope this helps

Happy coding

Yomet

Re: progress bar problem in vb
 

thank u yomet
this working right , but in this progressbar.minvalue is not true command it should be progressbar.min=0 and progressbar.max=0

Re: progress bar problem in vb
 

jto,

I stand (sit) corrected... :)

Glad you could find the correct syntax for your controls.

Happy coding

Yomet