Storing And Calculating Data Into Hashtable?

Dec 25, 2009

I am making a small tool that require some calculation. I am using hashtable to store values that I need to calculate. This tool continuously extract data on specific time interval(30 seconds) from webpage and add those data into the hashtable. Now the problem is I need to store the previous extraction data and when new extraction occurs, I need to deduct the previous data from new data.Here is the process I am currently following:

Dim MyTable as New Hashtable
MyTable.Add("Data1","200")
MyTable.Add("Data2","100")

[code].....

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.net - Storing And Calculating Data Into Hashtable?

Dec 13, 2010

I am making a small tool that require some calculation. I am using hashtable to store values that I need to calculate. This tool continuously extract data on specific time interval(30 seconds) from webpage and add those data into the hashtable. Now the problem is I need to store the previous extraction data and when new extraction occurs, I need to deduct the previous data from new data.

[Code]...

On first run it shows the result of Data3 = 100 which is currect. But on second run I need to redefine the value of Data2 = Data1 . So I need a result of Data3 = 0 on second run. This may not be the proper way to do this sort of operation. I have also tried using listbox, listview and even textfile to store the Data2 and recall that on second run. But could not make it possible.

This is the last phase of my tool and I am stuck with it.

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VS 2008 : Storing And Calculating Data Into Hashtable?

Dec 11, 2010

I am making a small tool that require some calculation. I am using hashtable to store values that I need to calculate. This tool continuously extract data on specific time interval(30 seconds) from webpage and add those data into the hashtable. Now the problem is I need to store the previous extraction data and when new extraction occurs, I need to deduct the previous data from new data.Here is the process I am currently following:

HTML
Dim MyTable as New Hashtable
MyTable.Add("Data1","200")
MyTable.Add("Data2","100")

[code]....

On first run it shows the result of Data3 = 100 which is currect. But on second run I need to redefine the value of Data2 = Data1 . So I need a result of Data3 = 0 on second run. This may not be the proper way to do this sort of operation. I have also tried using listbox, listview and even textfile to store the Data2 and recall that on second run.

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Dec 3, 2007

how to save hashtable object to data or text file like (sample.dat or sample.txt)
i got this class Name Book.

[code...]

if i run this application it works, but if i close the application the hashtable items will be erase.i want to save the items to dat file or txt file.i got some idea but it doesnt work, i use the file stream :[code...]

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I am reading data from a socket (as bytes) and storing this data in a string. Then later i need to access specific bytes within the string and do some math with them. However the bytes that I read back from the string are not what I am expecting.

[Code]...

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The Question sound like this.Assume the theater keep 20% of its box office receipts. Use the Following test data to determine if the Application is calculating properly :

[Code]...

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I need to store data in a grid like this:

{0,1,2,3}
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Public Class ManageUsers
Public HrlyRate As Decimal 'Declaring global variable to use between forms

'Some other code in between relating to rest of the stuff on the form

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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Calculation.Show()
End Sub
End Class

Then on the other form I have used this code to do the calculation:

Public Class Calculation
Private Sub calculation_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub

[code]....

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'Config data for an Environment.
Public Class Environment
Private msEnvName As String

[code].....

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Jun 23, 2011

I'm trying to learn visual basic and i've made my application all work and now I just need to make the listview save data.As far as I know, I can create a database with all the relavent tables in it for each column in the listview. For example in a database, I will have a table that will have four columns because I have a four column listview. Each row must be tied together though.

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I've been searching around these forums for quite a while now, and can't seem to either understand or find what I'm looking for.I have a text file, that my program is always adding to it, it's format is like so:

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[code].....

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I have a whole bunch of information that has been parsed from a web page and i want to insert the data into a multi-demensional array and the compare the data of a certain array element to another array in the same format to determine which is missing/added.So if i have this:

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[code].....

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Then they play my blackjack game, they gain 25,025 points when they start automatically from their Tetris game, they earn 25 points in blackjack click a save score button, now they have 25,050. [Thus far I have 2 games, and they both share a score that will need to be added to in the future]

[Code]...

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Is there some thing less dramatic than a full blown database? Or getting used to how a database uses SQL and all that goes along with that shoud be something to get handy with?

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Code:
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[code].....

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What is the most appropriate data type for storing currency values in VB.NET?

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