Is there any way to create a ranking system in VB? I'm trying to create an organizer for my robotics team. I thought of using an array, but I don't know how to read multiple text files or change the array if one is better than the other.
View 12 RepliesApplication: Arrays are to be used for this. When button Add Student is clicked it should add all the information for a student and when Show Student button is clicked it should prompt the user for student's last name and student's information in a message box. Class ranking list box has an enum function to it and has to be stored be show along side other answers.NOTE: FindItemIndex if from the last application I did, i am suppose to use it in this one,so you can modify it the way you want.
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I am creating a point system for a game. What i have right now is that fastest time with highest score gets a higher ranking.
But i can't seem to create this, what i did was to sort the time first from lowest to highest. Then sorted the points from highest to lowest.
Now my problem is, when i display the results. This is what i get.
RANK TIME SCORE
1 0:56 5
2 0:60 4
3 0:37 2
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I fought through a good amount of this and have gotten to the point where I can sort my arrays. What I need to do now is take the following code and sort the elements in descending order instead of ascending order. I don't know how to do that with the two arguments in the code:
Dim Cols(3) As Int16
Cols(0) = ColumnNumber + 1
Cols(1) = ColumnNumber + 2
Cols(2) = ColumnNumber + 3
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I want to create a paypal payment system in VB.NET 2008.
View 4 RepliesI need to determine the ranking of the List items specified by one specific property of the items.
I have the following Class:
Public Class LevelA
Property items as New List(Of LevelB)
Public Class LevelB
Property factor as Double
ReadOnly Property rank as Integer
End Class
End Class
For example, let's say I have three items in the List. I have set the factor property for the first item as 5.50, the second item as 6.60 and the third item as 3.30.Now I should be able to get the rank property of each item (the highest value should be ranked as 1). Here the first item in the list should have the rank as 2, the second item as 1 and the third item as 3.
What kind of procedure is needed for the "ReadOnly Property rank as Integer" for returning such values? It should somehow be able to access the list in the parent class probably?
I have a chart in visual studio (winforms) with sql serverr2 as the database, how do I rank the "Rate" from highest to lowest? Like,
conn.Open()
Dim sqlProducts As String = "Select ID, rate fromAdvancedQuizModule1"
Dim da As New SqlDataAdapter(sqlProducts, conn)
Dim ds As New DataSet()
da.Fill(ds, "AdvancedQuizModule1")
Chart1.Series("Advanced").XValueMember = "ID"
[Code] .....
I have this values
tablename: AdvancedQuizModule1
ID Rate
1 43
2 5
3 87
4 23
When I plot the points (rate) it will just shows the order of the table from ID(1-4). How do I plot it in the chart that when the values displayed it was ranked from highest to lowest.
I need to implement a notification system software for each new verson, I am interested only inform the user of the presence of updates, not autoupdate software, how can I do?
View 15 RepliesHow to create an error log system, which will log all errors(caused in my app) to a text file with line number, sub/function in which the error occurred, error details, etc. ?
View 11 RepliesI have had several occasions recently to access a specific class several times over a relatively small time frame.So I've been storing the value of the class in Session and trying to access it on page load, if it's not available creating a new instance and storing that in session.
So instead of constantly replicating the same code for different classes on different pages I'm trying to create an extension method to do this for me.
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I'm stuck on what to do when I make my new instance of my class (it would have to have a New() sub)
I'm not sure where to go from here... or even if this is the best way to do it.
i want to save a jpeg file from one system to another system which is connected through network.its in a windows application.my target system's name is "abc".how can i do this ?
View 2 RepliesI have a utility that is a simple exe that is not installed compiled with VS2005 and works well. But when I upgraded to VS2008 the utility can no longer locate files in the active system folder. I have UAC turned off and am logged in as the Administrator and it still can not locate a file that I can see in Windows Explorer. The file I am looking for is PakMgr.exe.
View 1 RepliesI'm trying to use DataView.Rowfilter and I'm getting an exception which says "Cannot perform 'Like' operation on System.Int32 and System.String".
Here's the code...
Dim str2 As Double = CDbl(searchSTR)
Me.shipperDV.RowFilter = fieldName & " LIKE '*" & str2 & "*'"
I have finished coding an application which I designed for people working in my office. When I started to install the application to computers at the office, I realized that, in some machines, application doesn�t work properly. Although it worked for 15 computers perfectly, for 3 computers following error code is displayed:
System.IO.FileNotFoundException: Could not load file or assembly 'System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified.
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WRN: Assembly binding logging is turned OFF.To enable assembly bind failure logging, set the registry value [HKLMSoftwareMicrosoftFusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.To turn this feature off, remove the registry value [HKLMSoftwareMicrosoftFusion!EnableLog].
A first chance exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll It displays in my Immediate Window when i run my program, I'm using a text reader to read a number of XML files using background worker...most the time it stops so something is wrong but sometimes it works fine.
View 2 RepliesI have recently set up a YouTube account where I will post various tutorials on how to make several programs. Code languages will very from Visual Basic to C++. I have just posted a video on how to Create a login system using SQL (In Visual Basic).
View 1 RepliesI've been looking all over for a MySql Database Login tutorial. Does anyone know how to create a login system (Using vb.net and mysql)?
View 9 RepliesI want to create a tcp/ip chat system using vb.net. I have created using vb6 using winsocks but unfortunately I couldnt find it in VB 2005. I have discussed with some friends about it and they also couldnt do it. I like to try something I dont know in this way I learn more. I want to create the in such a way that the client and server both have an interface and the client and server both have port text-boxes and the client has the host text box and the connect button.
View 2 RepliesI want to create a system commands,but I do not know what the right way to do it and how exactly (with regex?)
/ShowWindows
IsNewWindow 10
/ = Signifies that is a command[code].....
I have a problem in adding/creating a new user to the system. The data entered didn't successfully inserted into database. It didn't show any errors too.
Protected Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
Dim cmdInsert As OleDbCommand
Dim strInsert As String
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I try to describe my problem step by step because I do not know how to say it in correct programming terms.
When I use a System.String type, I do the following:
Declare the type: Dim Str1 as String
Assign its value: Str1 = "This is a string"
I want to create a new type that just like the System.String type but in different name. For example, I want to create a UrlString type for string like this:
Declare the type: Dim Str2 as UrlString
Assign its value: Str2 = "http://www.example.com"
My question is: How do I create the UrlString type?
The reason: I want to create the UrlString type to help me to identify the value of the content. For example, UrlString type means the string is in url format, PhoneString means the string is in phone format, CreditCardString type means the string is in credit card format and so on.
Class UrlString
Private ReadOnly value As String
Public Sub New(ByVal value As String)
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i want to implement in a program. I'm not asking for code just some advice and maybe a link or 3 to useful pages on the internet.I want to create a plugin system for an application that i want to make. The idea for the plugin system is based on the following...
1-Some graphics editing programs have what i think is called a filter/effects chain. its where you make a list of filters and settings that the program runs to edit the image.
2-In yahoo pipes you take small parts and use them to complete tasks for you mashup (like pulling all the images returned in a search and displaying them).
The system i want advice on is basically a plugin chain system modeled after these 2 idea's where the user selects plugin's and forms a chain out of them.for instance if i wanted to display a picture then i would form a chain of plugins like this
legend:[(inputs)what it does(outputs)]
[show open dialog plugin(output filepath)] -> [(filepath input)open picture plugin(output bitmap object)]->[(input bitmap object)Display a picture plugin(make a form for display)]
The code for the task's will of course be in the plugin's.The problem is i have never done any plugin system before. the hardest part i need help with is getting the plugin's loaded and sending the output's to each other. Also another problem i think is that the plugin's could be for anything (parsing text, displaying a picture, opening a url, downloading a file, etc, etc)Again I'm not asking for code just advice and some useful links to information.
how can i create a scoring for system for my Maths quiz game made using VB.My quiz game can generate automatic numbers / questions and shows a message box whenever the user gets the answer right or wrong. i.e.when the user presses the check answer button, a message appears stating that he/she go it right or wrong. Then the user can press the next question button to get a new question.
View 8 RepliesMy project is to create a virtual operating system in BENGALI through VB. I have created a virtual desktop in which there will be icons such as MY COMPUTER, MY DOCUMENTS, RECYCLE BIN, INTERNET EXPLORER... The internet explorer icon has been linked to the original internet explorer, as the case in RECYCLE BIN. But i am not able to connect to MY COMPUTER AND MY DOCUMENTS. Also in creating the START MENU, there is a RUN COMMAND........
View 3 Repliescreate database management system in vb 2008
View 2 RepliesI need codes on how i could create a Library System using Barcode Reader. I have no idea at all on how I could create s system using barcode Reader
View 12 RepliesUsername:
Password:
Login
Create Username
Exit
The login button
If TextBox1.Text = "Admin" And TextBox2.Text = "ABC123" Then
Police.Show()
Me.Hide()
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That it saves the Username and Pass so the next time I login, it can use this Username and Pass.
I have to create a Login System using VB 2008, ADO.net and an MS Access 2007 Database. I've searched for two days and i've found nothing. The first form of my software is the login's form ad it's formed of two textbox (txtUsername and txtPassword) and one button (btnLogin). I can't connect to the database and I can't make the form search password and username in the database.
View 1 RepliesI've made a program with visual basic and i want to get the textboxs text(textboxes 1-3) to go into the command : System.IO.File.Create("in here") I'v try the & method iand it dosent work
My code in the form is :
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim wholetext1 As String
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I'm trying to create a quiz system and I have 200 question stored in question table.I have two quizID which is 1 and 2. Each quizID have about 100 questions. I trying to randomly select 50 question from the 100 question.
SELECT [QuestionID], [Title], [Answer1], [Answer2], [Answer3], [Answer4], [CorrectAnswer]
FROM [Question]
WHERE ([QuizID] = @QuizID)
ORDER BY NEWID()