I am quite puzzled here. I have a program inwhich when the user clicks on the command button, a random line should appear but only once. I am storing each line with different variables. Right now i have the random line coming up but it is repeating itself. For instance, when i click on the button, line 1 appear, then line 4, and them line 1 again. How can i stop the line 1 to show again?
View 3 RepliesIt is SO useful for me to know the line number where an exception occurred. I inherited a project someone else created and I suspect he has some inherited Project properties from his initial Visual Studio Express solution. Where do I go to restore that critically important feature?[code]...
View 6 Repliesi got a listbox and a multiline textbox in my vb 2008 form, how can i make it keep auto scrolling to the bottom line when something new is added to the listbox/multiline textbox?
View 4 RepliesOkay my extrme noobatliee is being put to the test again, last on for today promise
and imma acquire this string from a webclient.downloadstring
1)Grabing a random line of bunch of string here is the example
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I have this to read a random line from a .txt file[[code]....
View 3 Repliesnow need to make it slightly more complex by the use of if statements. The concept itself isn't difficult for me, its the implimentation of it in this case.
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getting a random line on a text file then assigning it to a variable?
View 4 RepliesI have myMultiLineTextBox. How do I pick a random line of data from it?
View 4 RepliesI'm working on a new project and i need the program to pick one of the lines from textbox1 on a ramdom way: I have 1 timer and i want something like when the timer "ticks" to pick a different line from the textbox ex:
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I am making a basic form that has 1 button and a rich text box.I need to click on the button and have it call a random line from 3 text documents (so 3 lines total) and place them in the rich text box, each on a different line.
"Quick example"
3 Text files
Firstname.txt
Lastname.txt
Number.txt
Click on button named generate and in the text box below it places
First Name: Shara
Last Name: Harrow
Number: Seven
ive created a function for generating username, password, email to log in on a website but the problem is i want to use all account one at a time for example
num|username|email|passwd
1|username1|email@email1.com|password1
2|username2|email@email2.com|password2
3|username3|email@email3.com|password3
4|username4|email@email4.com|password4
5|username5|email@email5.com|password5
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making a VB application which chooses a random line for a file, sets it as the value of a Label (word) and also adds it to a ListBox (list) when a Button (nextbut) is pressed. I also want it to keep going.
Button; Text: Next
Name: nextbut
Label; Name: word
Listbox;Name: list
What i need it to do is to load a line from a file ("C:words.txt" for example) and set it as the value f the label. The lines are different lenghts.
I got a little program that generates a random line of text from a .txt file and all is working well, at least for the most part.
On occasion I get an error message popup saying "Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: Index."
Here's my code:
CODE:
The last bit is where the random number is generated, which I am guessing where the problem itself is, but am unsure as to how to fix it...
I want to read a random line (that I've chosen via random number) in a text file. I want to the system IO reader. But I am confused as to how to read a random line. Here's what I have...
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To do is stop the last line, begvalue = begvalue - depreciation, from showing up in the listbox. I tried an if statement but that doesn't work
Depreciation to a Salvage Value of 0. For tax purposes an item may be depreciated over a period of several years, n. With the straight-line method of depreciation, each year the item depreciates by 1/nth of its original value. With the double-declining-balance method of depreciation, each year the item depreciates by 2/nths of its value at the beginning of that year. (In the last year, it is depreciated by its value at the beginning of the year.) Write a program that performs the following tasks:
Requests a description of the item, the year of purchase, the cost of the item, the number of years to be depreciated (estimated life), and the method of depreciation. The method of depreciation should be chosen by clicking one of two buttons. Displays a depreciation schedule for the item similar to the schedule shown in Figure 6.23. Figure 6.23. Depreciation schedule for Programming Project 7. [URL]
This is the code I have so far:
Dim yearpurchased, cost, life, depreciation, begvalue, total As Double
Dim item As String
[CODE].........................
I need to get the last two numbers on the bottom right of the table.
I want to let the user input objects to a richtextbox 1 object on each line, and somehow use Random.Next to select pseudorandomly a few objects, the number 'few' inputted in a textbox.
View 9 RepliesI have a problem with the combox its only displaying the first item in the list its being populated by a webserice call the drop down in question is comboboxmodel now the manufacture one is fine and sets as it should any reason as to why the comboboxmodel would not. [code]
View 1 RepliesI've read numerous posts and threads about random number generation, but I havent' run across this.If I generate a bunch of random numbers, the results are radically different if I create a new Random generator for each number than if I use on Random generator for all the numbers. The results are much more consistent and evenly distributed if I use the same Random generator.I would have thought the opposite,because creating a new Random generator each time should reduce the number of random repetitions, if a different time slice is used to create the random number.[code]......
View 9 RepliesThe class Random is out right defective. It always produces the same random numbers in the same sequence. Things I have tried so far is every kind of seed you can think of as well as Randomize. The result is that I always get the same random numbers in exactly the same sequence.
View 4 RepliesI am practicing using the drawing commands, and have gotten a grass background and black happy face that moves around the background.It's a 10x10 grid of 50 pixels.I want (at the moment, when i press enter) it to generate a random number of trees (15 ~ 25) at random locations on the background. The program doesn't freak out about anything, and the variables seem to be right (using stop commands) but it's not drawing anything. Here is the code for the "GenerateTrees" command I have for when I press enter.
Private Sub GenerateTrees()
NumberOfTrees = Int(Rnd() * 10) + 15
For i = 0 To NumberOfTrees - 1
bmap.MakeTransparent(Color.Fuchsia)
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what i need to do is open a txt file, read line by line, decode each line into an array and display. Now all works ok apart from one line.
sTextLine = objReader.ReadLine() <-- Value of string cannot be converted.
full code here
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Dim objReader As New System.IO.StreamReader(sOpenFile.Text)
Dim sTextLine As New ArrayList()
Dim sText As String = ""
Dim i As Integer = 0
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I would like to use integers generated by Random.org in a small desktop widow app. Im using visual basic. All My search terms bring up unrelated (to My issue) information. Currently I am using the local random statement/command.
View 4 RepliesI am trying to make a texas hold em game and it is of the utmost importance that my code generate a random number. But using a random number function that I always end up with a lot of the same numbers over and over again. Any ideas on how to make it "TRULY" random? [code]
View 3 RepliesI've made an image viewer which opens a random image from a specified folder, but the random number is not that random at all... I've already used Randomize(), but without result.
View 3 Replieshow to read text from a listbox line by line and put current line in a label?
View 3 RepliesHow would i go about reading a file Line by Line that within that line The values are delimited by " Example of the data:
"bob" "cat" "1243"
"steve" dog" "6789"
I've started this with this code but not sure how to go about the next stage:
Using MyReader As New _
Microsoft.VisualBasic.FileIO.TextFieldParser(My.Application.Info.DirectoryPath & "Records28112011.jd")
MyReader.TextFieldType = FileIO.FieldType.Delimited
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I am trying to read in a TextBox line by line and take the first 7 characters of each line and output everything in another TextBox.This is what I have so far.
Dim line, lines() As String
lines = TextBox1.Text.Split(Environment.NewLine)
Dim i As Integer = 0
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I don't take programming lessons at school or anything, and I'm starting to (try to) teach myself about random things.Currently I'm making an app that has 3 functions:
-Random Integer (1 to 100)
-Random Answer (Yes or No, similar to a coin flip)
-Random Dice Roll (1 to 6)
How would I go about doing this?At the moment all I know about random numbers etc. is that I will need to do something along the lines of Dim dice As New Random or something like that, but, like I mentioned, I have no idea.I am well aware of the DIC rules that you won't write the code for me/do my "homework(?)" for me, and that's not what I'm asking.
i need the app to preview the line in textbox in timeintervalof 1 s (can be change)nd when it will reach to the end it close the text file and andreread it after let say 1 m ..
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim myStream As Stream = Nothing
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VS2010 (SP1) / .NET 4 on Windows XP. The question is simple, the answer; not so much. When generating a salt, should the LENGTH of the salt be random, fixed or a random number within a (min/max) range? I am using RNGCryptoServiceProvider to generate the salt, just unsure of the length of the salt.
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