Challenges Creating A Correlative Update System
Apr 8, 2010
I have a program that I have gotten as far as programming it to inform the user of updates, have them push a button to download it. The updated version of the exe will be downloaded into a subfolder called "Updates", where there is a program called "Updater.exe"This program is one form, with a progress bar and informs the user the program is being updated. Every time I run through it step by step it appears to work, but in a real environment the program stalls out. It doesn't crash, but the bar continues to move with no action being taken. I can not help but wonder what on earth must be going on in the code, which you can see is quite sloppy and rather unweildy:[code]And there is of course the issue of not being able to change data on the hard drive without administrator privileges as is being discussed here: url... When I finally get a manifest working for this program to require administrator access....how could that screw up this updating process...How can I better perform this, what seems to me, simple process of deleting the old file and replacing it with the update?
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Jul 12, 2009
In my project properties I go to publish, options, and file associations and enter ".cms", "Contact manager File" "pqcms" and "1icon.ico", but when I publish and install it does not appear to associate the files...I want to be able to double click on the file and have it open the program but it does not appear to do so.I believe there are ways to edit the registry if you run your program as an administrator, but I really need clickonce to be happy with me because I am maximizing
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Mar 22, 2010
Hello All,
Can anybody help me, i am having challenges getting collections value into the database
Here is my sample code. but is not working at all rather is crashing the applications
Dim collections As New System.Enrolment.CustomerBiometricsCollection()
collections = Me.PrintCaptureWizard1.ShowDialog()
Dim dbs As New DBClass
Dim mee As String
mee = dbs.ConnectionString
Dim conn As New SqlClient.SqlConnection(mee)
conn.Open()
Dim ds As New SqlCommand("Custoon", conn)
ds.CommandType = CommandType.StoredProcedure
ds.CommandText = "CustBiometrics"
For k As Integer = 0 To collections.Count - 1
ds.Parameters.Add("@TemplateID", SqlDbType.UniqueIdentifier).Value = New Guid(TextBox1.Text)
ds.Parameters.Add("@TemplateIdentifierID", SqlDbType.UniqueIdentifier).Value = (collections(0).TemplateId)
ds.Parameters.Add("@CustomerID", SqlDbType.UniqueIdentifier).Value = New Guid(id)
ds.Parameters.Add("@Template", SqlDbType.Image).Value = collections(0).PrintTemplate
ds.Parameters.Add("@TemplateSize", SqlDbType.Int).Value = collections(0).Size
Dim dr As SqlDataReader = ds.ExecuteReader()
dr.Close()
Next k
conn.Close()
MessageBox.Show("Record Inserted")
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Nov 16, 2011
i would like to auto check for new version system update when the system is closing. When there is the new version system update, will automatically rename the active exe to FileName.old then copy new version of exe into the folder.
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Feb 15, 2012
I'm creating a form application using vb. I'm still new to this and I'm teaching myself via the internet so please don't be too mean. I wrote my code using queries that I created in visual studio. I don't quite remember how to create an update query and write the code to update different datagrids. I tried searching the forums, and I can't find anything that fits into the way I wrote my code. I have an update button that I want to use to save all the edited data in the form. Here's my code so far:
Public Class Form1
Private Sub Blsys_systemsBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Me.Validate()
Me.Blsys_systemsBindingSource.EndEdit()
[code]....
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Jun 10, 2011
WINDOWS PLATFORM: WINDOWS 7APPLICATION LANGUAGE: VISUAL BASIC 2010 EXPRESSWINDOWS FORMS DESIGN.CONTROLS: CHECKBOXES, RADIO BUTTONSDear VB Programmers,The function of the checkbox is to: check whether the application will display a particular page @ start up or not.
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Dec 15, 2011
I have just finished college and I am awaiting my exam date. I have created some desktop applications for my portfolio, but now I want to create a Point of Sales (POS) system to add to the list.I notice in supermarkets and various shops that POS systems use touch screen monitors to interact with the program.My first question is, do I need to use different code or controls in my applications so they can be used with touch screen monitors.I have created an application for hotels for booking rooms (not for a client, just as a demo project), but if there is anyone out there who could give me some pointers on how to create the POS system.I will be doing some research and I will start designing some controls over the next few days. I am looking forward to getting this project started.
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Jan 15, 2007
my project is about creating stock control system to a bookstore which you can get details of books available,slow moving books..etc i just want to know about creating forms for my project what kind of forms you needed for ex: add,edit,delete btns.
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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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Feb 24, 2012
Since i update my program a lot i want to implement a update system into it And im new to programming, so i would prefer it to be a very simple system.. What i want it to do is, when a user presses a update button it should check on a specific ftp server if the file version is newer than the one the user is having. If it is then it should just download it from the ftp server and then replace the original exe ..
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Mar 10, 2012
I have used this form to add new records on my database(ms access) in my database I have a column name 'ID' which is my primary key 'ID' is set as auto number. Now I am having a trouble on creating my update and delete button it's always saying "cannot be delete/update"
Here's my code on add, update and delete
Public Sub SaveRecord()
Try
Dim dbConn As OleDbConnection
Dim dbInsert As New OleDbCommand
Dim str1, str2, str3, str4, str5, str6, str7, str8, str9 As String
[Code] .....
Note my add is working perfectly fine. I just can find the error on my delete and update. Also I have used this to view it to my datagrid I don't know if its the right thing but it's working fine too.
'declared dbpath globally'
Dim dbPath As String = "Provider=Microsoft.Jet.Oledb.4.0; Data Source=../VG.mdb;Persist Security Info=False"
[Code] .....
Another thing is how to code each textbox and combobox to bind it to my records so that when I click on the datagridview each column will be distributed on each respective textbox.
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Jan 14, 2009
I haven't been doing a programming for awhile now. But, I was a VB programmer before. I will be creating a tool to log issues encountered by the users of our system. It will be a web based. I'm planning to create it in VB.Net. Any resources that you could share is greatly appreciated. I'm looking for a ready program that I could start with to speed up my programming.
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Mar 14, 2012
I am trying to create a windows forms login using vb.net and sql that has the option to create user accounts with such properties like administrator and more.
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Aug 5, 2010
i've been looking at something like this A Simple Beep - Reminiscing about ZX Spectrum audio - CodeProject But is not what i'm looking for. I want to know how to create a wav or a mp3 file using the system Beep!Simple i want to write a wav file with the specific Console.Beep(700, 220) Sound.
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Aug 26, 2009
Determining the max filename & path size of the OS.zip I whipped up a quick app to test the max filename & path length for a chosen folder. It works gr8 except when I choose the root of the C-drive. When I do, I get this error:
[Code]...
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Feb 16, 2010
How do one create System Level environmental variables manually. I just installed a GeoSupport Desktop Edition software and in the document it is mentioned that I need to create system-level environmental
variables for PATH and GEOFILES manually
Add the location of the GDE executables to the system-level environmental variable PATH.Normally this means adding C:Program FilesGeosupport Desktop Editionin to the PATH.
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Jan 11, 2010
I am trying to create a new folder in C:\Windows\System32\oobe but I cannot get sufficient privileges. Here is the bit of code that has the error
' I have "CreateDirectory("C:\Windows\System32\oobe\info\backgrounds") in the Form load sub
Sub CreateDirectory(ByVal Path As String)
Directory.CreateDirectory(Path)
End Sub
And then in Form Load I have:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
CreateDirectory("C:\Windows\System32\oobe\info\backgrounds")
End Sub
It keeps saying I don't have the privileges. Is there any way around this? I also need to put files in that folder later on.
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Apr 1, 2009
I am writing a program that and like to implement data verification system. It needs to return a unique string for any value entered. My question boils down to: is it possible for an AES function to return the same value for two different entries? The source values will becoming from data held on a magnetic stripe card.
more details
I posted this through my phone originally, and I am now just getting back to this post.
I've been looking around the web and while reading Wikipedia's article on SHA, I see that SHA-2 (SHA-256/224, SHA-512/384) have no detected collisions (assuming the article is accurate/up-to-date). This is desirable. Any recommendations on what version of SHA-2 I should use?
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Apr 5, 2012
I thought that creating a simple system service under VB .NET would be a piece of cake. Boy, was I wrong. First, I find general postings through Google that say you should use the Windows.Forms.Timer. Then, I found conflicting information that says you have to derive the timer from a timer class through code to make it work. Then, people are reporting all sorts of trouble using the various types of threads available. I can't debug threads using the VS 2010 Just-in-Time debugger for obvious reasons (although, I don't know if there is an alternate method to doing this).My project is an application launcher (similar to cron) that will fire off periodically within a certain amount of seconds. I am trying to use the Process.Start() method. I have a Beep() function as the first instruction, and the Process.Start, along with a Process.WaitForExit method to make it block as the last instruction. I had my code doing this through timers, but now I am starting to use threads. No difference in execution. The over-ridden OnStart method does kick off (as I am certain through debugging), but nothing ever happens when starting the service in production, as if it were ignoring all my code. Putting loops and logic in the OnStart method yields a process that won't start. I know it is a threading issue, but I also know it must be mandatory to use threads. I am now dumbfounded as to how to make this work. I am curious to know the solution.
In addition to the service class, I have a ServiceInstaller and ProcessInstaller implemented that I copied verbatim from MSDN.Here is some of the code I am trying to work with. Note that this simply reflects the current state of my code in trying to implement the logic within a thread instead of a timer (which to me would be optimal):[code]
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Aug 27, 2011
I want to check for a system update every .25 seconds. It's very important that it is always .25 seconds apart. I was trying to use do until/while...loop, but it wouldn't let me insert a delay. Does anybody know how to do this/where I could learn to do this?
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Dec 23, 2010
am i just stupid or do they have a ____ up system?the "publishing folder" is set to my ftp server.. and the upload works.. so thats Done.the installation folder is set to "Whata ____ is this?!" and i dont know if it works or not..it is supposed to update when the application starts.. it does not. and that does problobly have something to do whit the installation url to do..so how do i make it update automatically?
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Sep 19, 2011
i have been looking for a code to change date time in kernel32, which is I will get a date time from server and update current PC date and time based on server date and time.
[Code]...
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Oct 22, 2010
i want to create a system update..When the user clicks on this button will check if a newer version If so, it will ask if it OK to download and approve it will download the file and open it right when the download is complete?
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Jun 28, 2009
Is anyone creating a loan operting system similar to calyx point? If so contact me to hear proposal.[URL]..
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Jun 21, 2010
I am currently creating an application to track timekeeping (a clock in/out system) and I am trying to work out the best way to do this.
I have a Main Form which contains buttons to ;
- Log in
- Out for Break
- In from Break
- Log out
When a user presses the "log in" button the logon form appears, the user then enters their username and password. What happens next is where I would like the help.
Process is as follows:Click Logon Enter Username/Password Check Logon Form for errors (eg no password etc) Check User is in Database (using SQL query) If user is in DB and username and pass are ok then refer back to the main form to perform Stored Procedure for what the user wants to do (eg logon or or out for break etc). Set label on main form to show user as logged on My question is should I be using a public variable and calling the main form again or in the user logon form having 4 options and using an IF ELSE to select the appropriate Stored Procedure?
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Sep 13, 2011
Im in the process of creating a task loggin system for my work, and im in the final stage now of tidying the design etc, and i have a text area where a scroll bar is visible but disabled, is there a way to remove the scroll bars completly and when the user goes passed a certain line make them appear? i no i could say scroll bar = false but i wont it to appear when it hits a certain line.
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Aug 17, 2009
I am working with a old windows app (vb.net), this was working fine before with the old out look (owa) now we moved to 2010 outlookweb acess, after movingis application is unable to sync the exchange applications to web.
Dim
req As
Net.HttpWebRequest
[code].....
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May 14, 2011
I am trying to create a data entry system for a local community group. I am working with VB.NET 2010 and MSAcess 2000. I am completely new to using a DB in VB.Net. I have created a form with the membership table bound as details on the form and the classes they are attending as a DataGridView. I used all the Visual Studio GUI tools for this. It was reasonably straightforward once I got the hang of things. My problems arise when I try to ensure that a user cannot move to a new record or create a new member without first saving any changes they have made.
I am using ColumnChanging events in the ...DataSet.vb class to set flags to indicate whether any data values have been changed on the form. My problem is that the ColumnChanging events for the classes DGV fire immediately on changing the data whereas the ones for the member details don't fire until I start to move to a new record. I don't know if it is important but my member navigation is achieved by means of a combobox on the form that lists the member names from the table. I have absolutely no idea why this works - it just did; the form updates as soon as the user selects a new member in the combo box.
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Aug 5, 2010
IDE :: error creating the web proxy specified in the 'system.net/defaultproxy' configuration section.
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Jun 18, 2012
I'm working on a sales system. I have a form which consist of all the following information (item code, item name, item price, quantity of item) which is display using a data grid. Data input by user using text box and all this information will be stored in a database (sales database) I'm using ms access 2007. the grand total will be displayed in a text box. And amount paid will be input in a text box too, my major problem now is how to I create a receipt that will have all this information of the purchase. I have a receipt button. How to get the reciept done.
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