Create A Simple User Tracking System?
Nov 17, 2010
I'm trying to create a simple user tracking system so whoever has the program open can see who else has the program open. I know how to retrieve the username and everything. What I was doing was updating (loading and saving) a listbox with a text file on the network with the usernames in it. I can't get it to work right and I think its because the simultaneous opening and saving of the same text file by multiple users. I know this isn't technically the best way to go about doing this but it seemed like it should be the easiest. I don't want to make a huge project out of this because it isn't that important, it would just be nice.
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Mar 30, 2012
I am creating a points system for a game, this is the code I have but it isn't working as I want it to.
Dim intScore As Integer = 10
Dim intNumOfGames As Integer = 0
intNumOfGames += 1
intScore = intScore - 2
The user will start will a score of 10, but everytime they click the button the user should lose 2 points off the score. But my code above that doesn't happen, when the user clicks the button it only happens once leaving the user with 8 points throughout the game.
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Feb 9, 2011
create a simple control. The control have 1 label and 2 panels with images. The control needs to be clicked, the problem is i can create the click action for the control, i can only use internal click events. how to use it out of the control.
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Jan 22, 2010
could anyone please help me with this1.Create a simple Times Table program which will allow the user to enter an integer value n (between 1 and 20) into a textbox. On the click of a button output to a label the n times tables. Use a For Next loop to perform the repetition.i can output them to a list box but only last one to a label ive been stuck for 3 days.
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Jun 18, 2012
i would like some help with how to start with my FINAL YEAR project work dubbed "SCHOOL TRACKING SYSTEM" . I am so much lost on how it shoud be like and what to actually do.
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Apr 25, 2009
Using Vb.Net 2003 Asp.Net 1.1 SqlServer 2005 I have to keep track of users just like this site does, I sayTracking but I don't mean for statistics I mean whenyou click a button to reply to a question your name is known.I need to know how that is exactly done, I need to do it right.If you can't tell how it is done, what is it called, is it sessions orsomething else so I can google it.I have a login and sent a cookie but I am stuck there.
[Code]...
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Sep 24, 2009
I'm looking for some advice for an application I currently developing. I'll try to keep this as brief as possible so if additional info is need just let me know.I'm developing an Winforms based event tracking system using VB.Net (VS 2008 Pro). The application collects data via serial bar code scanners and stores this data within a MS SQL Express db located on the same Windows XP Pro workstation that the application is installed on. When the application receives the formatted string of data it checks the db table and sends a reply back to the device indicating whether the data is a duplicate. I have written a PortManager class to handle the serial based devices and this functionality is working well.
I have now been asked to incorporate a new type of collection device into the system. The new device is running embedded Linux and uses TCPIP (POE) rather than serial communication. The device manufacture has assured me he can provide a string from the devices integrated scanner in the same format as my serial based devices.
If possible, I would like to utilize the current application and just add the ability to use the TCPIP devices to it. I was thinking it might be possible to just add a new class (similar to my Port Manager class) to handle the TCPIP based devices.I'm really at a loss as to the best way to approach this. I'm just not that familiar with collecting data from a Winforms application using a TCPIP based device.
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Nov 26, 2011
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
[code]...
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Feb 2, 2009
Username:
Password:
Login
Create Username
Exit
The login button
If TextBox1.Text = "Admin" And TextBox2.Text = "ABC123" Then
Police.Show()
Me.Hide()
[code].....
That it saves the Username and Pass so the next time I login, it can use this Username and Pass.
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Jul 15, 2009
I am looking to create a simple password box that will ask the user for a username and pass, if the user is validated against the usernames and passwords in an .ini file the login box will close and launch a program also stated in the .ini file. I would also like to be able to launch different programs for different users.
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Dec 7, 2009
[Code]...
I need some trick to make some good and safe "Login" to application system with username and password.
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Jul 13, 2011
Can anyone help me to break down the instructions for this assignment.Create an application that allows the user to type in a 32 bit number using the binary system, and convert that number into the decimal numbering system.For example, the user types 000000000000 0010 (where there are 30 leading 0's, 1 then 0 from left to right), and the output would be 2.The user will type a string that is 32 characters in length.A For loop 'reads' each character using the x.substring(i,1) where i is the current character we are reading and 1 means one character only,and x is the entry the user typed (use a Textbox to get the entry but Inputbox is also ok).When you start at the first character (from the right) then that value is to be * 2 ^ 0 then the second character is to be * 2 ^ 1, then the third character is * 2 ^ 2, hence:( x.substring(i,1) converted to Integer ) * 2 ^ j represents the decimal value of the current number (0 or 1) we are reading.A variable is needed to accumulate all those values.After the loop is done, display the accumulated value.To test this code on a simple version, enter a 4 digit binary number, where 0010 is decimal 2, 0110 is decimal 6, 0111 is 7, and 1000 is 8.
My understanding is the user must enter 32 digits into a textbox. The textbox should place limitations that only allow the digits "0" and "1". This error could be displayed to the user with a messagebox that then asks to reset the value orginally inputted into the textbox. My understanding is I should continue creating the formula of the position of each character where the third character is *2^2, fourth is *2^3, fifth is *2^4 and so on? I don't understand the formula and how it works.
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Oct 7, 2008
I try to create a form that managing the access level of user management system.The model I use is the following :I create a connection to database I create a DataAdapter to transfer the data from the database I create a Dataset to hold my data My form consists of the following :A ListBox that list all the access level namesThree text boxes: the first for the record ID The second for the access level name And the third for the discription of the access level Five check boxes:One for writing rights One for the deleting rights One for the Updating rights One for Printing rights And one for Special area access rightsSo what i do is the following :I create a connection string I create a new connection to my database server I create the DataAdapter I initializing the DataAdapter command such as SelectCommand, DeleteCommand, e.t.c.I fill my DataSet with the data DataAdapter get from DataBase I binding my controls to DataSet I setting the DataSource property of the ListBox to my DataSet I setting the DisplayMember to the ACCL_NAME column of the DataTable inside the DataSet I setting the ValueMember to ACCL_ID column of the DataTable inside the DataSetUntil this time all are fine ! ! !The question is :When i try to add a new row to dataset by using the following code i have a problem :
Dim newRow As DataRow = Dataset.Tables("TableName").NewRow newRow("COLUMN_NAME") = Binded Control Value DataSet.Tables("TableName").Rows.Add(newRow)
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Jul 4, 2010
I need to create a notification system for my application that will alert the user once new items have been sent to their queue, which is made of up database entries. The latter part of this question may need to be asked in the database forum, but I guess we'll figure that out First, since I haven't created anything like this before, I need some direction on what the best possible solution would be.The notification system should always be running and work independently of the main app. With this requirement, I thought a Windows Service would be best.
The notification itself will just be a quick form that alerts the user. I'm sure most of that will be fairly easy to create. The only issue I'm wondering about is how to constantly check the database and determine a new record has been inserted.Would a windows service have a timer or something that allows me to constantly check?If it does, how would I determine a new record has been inserted?
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Jan 23, 2010
[code]Close to no real programming skills (PhotoShop artist turning Visual Basic Beginner)This is a snippit of the code used in my browser. Basically the items that are in the list box are loaded from a text file hidden in the installation directory so a manager (or such) will be able to edit which websites are navigate-able.Here comes the problem though, I have not been able to get it to work correctly it will not block any of the listbox items. If I can remember it will only block the site which is selected.How can I re-code it to make the program block all the items in the listbox instead of just one.(Also if not too much trouble how can I make something that will enable and disable the code)BTW this isn't a commercial program or anything just a project I have been working for ever at home.
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Jun 21, 2010
i want to create a simple POS system, can you tell me how can i hide group of buttons/ controls on the first load of a form and then group of controls will just show after a button is clicked or selected. Also i want to have a display (on same form) of what is selected by the user.
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Mar 13, 2009
I am trying to develop a simple inventory system. I now have all the database set up and would like to know if there is any code that I can refer to that alert users when the stock is low (e.g pop out window informing users that stock is low or change the number of stock in the database table into different colors).
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Mar 30, 2012
I am creating a game which has a simple score system which I don't understand why it isn't working the way I want it to. When loading the game the User starts with 10 credits and for every time they run the game it costs 2 credits
This is my code for this below
Dim intCredits As Integer = 10
Dim intGamesPlayed As Integer = 0
intGamesPlayed += 1
intCredits = intCredits - 2
It has no errors but it doesn't take away the credits each time the game is played besides the first time. So when I run the game it will go to 8 credits, and it will stay on 8 credits even if I run the game again.
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Jan 10, 2010
after searching for around a half hour or so, I found that the regularexpression API could do what I need.Basically, I needed to only allow letters, numbers, and symbols in my textbox. The problem was, I could stick alt codes in there, even with a keycode case check
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Feb 2, 2009
i know how to make a simple login system but im not sure how to script it. I make a txt stored at a website. And i will open it with a invisible textbox (to login, only username requed). Then when i have a logon screen. And if i write like:"ABCUSER""SUSER"And make a if like: If 'text in login screen' equals line 1 or 2 in invisible textbox, then ...etc
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Nov 3, 2011
Im still a bit newb to coding in Vb but Im trying to figure out how to make a simple inventory system for my video game. I need it to do a few simple things and Ive never made a inventory system before so im a bit lost on how to approach it.
Functions Needed:
Player has 40 pb that act as the visual inventory or display the item in that slot.
[URL]
I set up my armor menu to allow drag an drop of the item but again not sure how to even get the inventory system created to finish the armor menu to allow the object to be dragged into its box and remove its self from the player inventory.I think I need to make a array for 39 or 40 in my adventurestorage class. That part Im pretty certain of but how do I set that part up? I have over 200 images that need to act as a item that can be dropped into the inventory.
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Mar 7, 2012
can you teach or give me a code for a simple grading system using VB '10..?
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Aug 14, 2009
I'm trying to run a simple database and im getting a "System.NullReferenceException" error ) & "Additional Information:Object reference not set to an instance of a object" .
txtItemName.Text = rowCurrent.Item("ItemName") <-- highlighted in yellow
Code is as follows:
vb.net
Imports System.Data.OleDB
----------------------------------------------------
Public Class Form1
[code]....
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Jul 4, 2010
Im trying to make a simple send key system on my project but it dosent send to the window in in why ?
SendKeys.Send(X)
My.Computer.Keyboard.SendKeys(X)
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Feb 11, 2010
I want to listen to events in my windows forms .NET application for the following system wide events :
[Code]...
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Apr 1, 2009
I'm writing an application which has user authentication system, basically, when the user open the software, he has to enter his/hers username and password which are retrieved form a access data base, and if the user is set as admin then it enable some features, I couldn't figure out how to read the column lets say, IsAdmin table, which will store an value of 1 or 0 for example. I need a concept of how build a login system with levels or whatever you guys call it...
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Apr 11, 2011
I am currently working on some software for a taxi company, and we have been asked to create a webbrowser (only simple) for the users which we allow to use it, to view traffic updates from a website that we already know about.
But...
We dont want them to be able to navigate away from this site via links to google adverts Etc...
Basically we don't want them to be able to surf the net at all, only be able to work!
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Feb 12, 2011
I just finished making a Tetris game in VB.NET, and I wanted to add a high score system to the application. So, when a user completes their game, they have the option of submitting it as a high score, which will compare their score against the previous high scores, then place it accordingly. I was thinking of an XML approach of doing this, where the user's name, rank, score, level, and number of lines cleared will be stored in tags. Here is what I thought the XML might resemble:
[Code]...
So the program will have an array to store all the previous scores. It will read through the XML, and copy the the score data into this array. Then, when the time comes to submit a score, it will compare this score against those previous scores, and find the proper position for that score, and then save it into the array. At the end, it will then copy all the score data from this array to the XML, replacing the <Level>, <Lines>, and <User> tags in the process.I am however having trouble implementing this, as I have no experience with XML files and everything I've read has been very confusing.
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Apr 10, 2010
I've created an application, And now need to add the chat feature. It just needs to be basic, But im un sure on how to code one since i am still a beginner at Visual Basic. I know there is a way via TCP Listener using Net.Sockets, But im stuck there. I am totally out of my mind when i think ill know how to code. But here is how the chat will work[code]...
Server side, Is just to host it. I will host it on a windows vps with ports opened, and Anyone who downloads the program can connect to the chat. The username or Nickname of the user will come from 'My.Settings.username'. At this point I am willing to pay someone to code this project.
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Jun 7, 2009
i need to take user input and make a very simple bar graph from it in vb.net.
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