chart

[Ace Master]

hi,

 

how is possbile to draw a chart with the last 6 months (if you open the application in december, will draw chart from July to december) and the info from a text file like :

 

50

60

20

40

30

 

thanks

[Ace Master]

I made the chart, with 6 parameters, but now I want just to take the numbers from the text file and to put them into some variables... but how ??

 

ex:

 

50 > var1

60 > var2

20 > var3

40 > var4

30 > var5

36 > var6

[AlexCode]

Sorry if I'm slow minded but ... I didn't get the idea ... What are those numbers for ? Why are they stored in a text file?

[Ace Master]

the file with data (60 50 80 70 90 etc...) will be generated by an equipment for monitoring some stuff.

 

I want to take this file to make a chart with this values. Every day will be a different value ..so the chart must be updated from this file every day.

 

All I want to know is how I can take this values fron the text file to put in variables. I can take only if is a sigle value in the file and put in a single variable. Don't know how to make several variables from this file when I have more than one number.

 

thanks

[AlexCode]

Ok ... it goes like this :

 

 

 

       Const FilePath As String = "c:\test.txt"

       Dim sr As New System.IO.StreamReader(FilePath)
       Dim lines As Integer
       Dim Vals As New ArrayList      'Array of integers

       'Counts the lines on the file
       Dim str As String
       Do
           str = sr.ReadLine()
           lines += 1
       Loop While (Not str = "")
       lines -= 1
       sr.Close()

       'Reopen the file from the begining
       sr = New System.IO.StreamReader(FilePath)

       'Set the position on the 6th value from the end
       For jump As Integer = 1 To lines - 6
           sr.ReadLine()
       Next

       'Read the last 6 values into an array of integers
       'If you wish change it to Double...
       For i As Integer = 0 To 5
           Vals.Add(Val(sr.ReadLine))
       Next

 

 

In the end you have an Array named Vals with 6 item on it from 0 to 5 witch are the six last values on your file !

 

Is it ok for you :D

 

Anything else ... just ask !

Edited September 16, 2003 by AlexCode