.net - Application Updates Ignored By Users Are Never Reshown?
Feb 23, 2012
I'm using the Application Updates option in Visual Studio with 'Before the Application Starts' checked.Users are complaining of canceling the update and then finding out they really want the update. When they decide they want to update there is no way for them to update the application until I publish a new version, because once they cancel the dialog box it never shows up again.
Is there a way to create a menu option to force a check for updates?
Kind of off-topic... Are there any open source Application Update programs for .NET?
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Jul 9, 2009
I have a program that uses sql for the database. The issue im having is when two users attempt to update the same record then the update from second user overwrites the record from the first user. I believe this problem comes from the the way i attempt to preserve existing text in the fields.
My thought on whats going on is: If the form has fields A and B. Both users start with a blank form. User 1 adds a record with an entry in field A. When user 2 goes to update the record with an entry in form B, the program overwrites user 1s field A entry with the blank field A from user 2.
Is there a way to force it to grab the most recent data before it tries to add/update? I thought about resetting the digit combo box to the same digit which would trigger the change event for that field. but the issue with that is it would also wipe out the current entries on the form.
Below is the change event for the digit combobox, the main submit procedure, and the subprocedure for one of the days.
[code]
Private Sub cboDigit_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboDigit.SelectedIndexChanged, cboOffice.SelectedIndexChanged, dtEndDate.ValueChanged, dtStartDate.ValueChanged
[Code].....
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Dec 29, 2010
I am creating a form that creates new users and then updates them to a dataset, I have done this ok, but I am getting a runtime error when I delete a record. Please see below the exception being thrown
"Update requires a valid DeleteCommand when passed DataRow collection with deleted rows"
My code below
CODE:
So I know I need to add a delete command, but how do I write this in code and do I write it in the saveitem click event? I guess I would because the app crashes when I click save to update the dataset.
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Apr 3, 2012
1.I�d like to publish a free vb.net desktop application for the users to download and use meanwhile I�d like to collect usage information ex: user ip address, user�s registration information, used features, time spent� if the user allows the report to be sent back.
2.Also , in order for the user to be able to use the application, he�ll have to register it then, everytime, before the application loads, it gets verified online that it was registered, maybe validate the registration information or a valid user name and password, no critical personal information. The target of this step is for the application to be used exclusively by the registered user and maybe on his computer only.
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Apr 4, 2012
1. I�d like to publish a free vb.net desktop application for the users to download and use meanwhile I�d like to collect usage information ex: user ip address, user�s registration information, used features, time spent� if the user allows the report to be sent back. 2. Also , in order for the user to be able to use the application, he�ll have to register it then, everytime, before the application loads, it gets verified online that it was registered, maybe validate the registration information or a valid user name and password, no critical personal information. The target of this step is for the application to be used exclusively by the registered user and maybe on his computer only. Any alternative way to achive the target is just fine.
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Jun 11, 2009
What should I do to trigger an application (wpf in vb.net) to look for updates?
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Apr 5, 2009
This application should ask the user for a percentage amount by which each price should be increased then increase each price by that amount and then display the increased amounts. I can't seem to get it to calculate the amounts. Everything else seems fine. Any suggestions, ideas or recommendations? [Code]
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Jun 25, 2010
Whats the best way to go about having the user update the product? Im using VS 2010 and the publish wizard does give me an option to first uninstall the previous version which is ideal.
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May 29, 2010
I'm trying to update a row via c# winform application. The update query generated from the application is formatted correctly. I tested it in the sql server environment, it worked well. When i run it from the application i get 0 rows updated.Here is the snippet that generates the update statement using reflection - don't try to figure it out. Carry on reading after the code portion:
public void Update(int cusID)
{
SqlCommand objSqlCommand = new SqlCommand();
Customer cust = new Customer();
[code]....
The above final update statement works on the sql environment, but when running via the application, the execute non query runs ok and gets 0 rows updated!
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May 2, 2009
I remember seeing a tutorial a while ago about making your application check online for updates..I did this a year or two ago but have since lost my example. Can someone explain how you do this or supply me with a link if you know a good tutorial?
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Feb 23, 2010
Okay so i made a small code that my application can check for updates onstart time. The problem is that it freeze up the application. How can i make it work faster.
Try
My.Computer.FileSystem.DeleteFile(My.Application.Info.DirectoryPath.ToString & "" &
"v.txt")
[code].....
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Nov 10, 2009
I have written an application to perform a simple CRUD operation i've used MVC design pattern... DAL was designed using the wizard. I was able preserve the olds value of teh fields of EMployee class using a seperatemethod
PreserveOldValues(){ //code}
in the SearchByIndex() i call the fill method and i used the data to initialize the current Employee object also i preserve those values using PreserveOldValues() the i call update() and internall i pass the preserved values......However it doesnt do concurrencies and updates..
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Oct 18, 2010
i am wondering if there are any case studies / white papers available comparing web applications to remote desktop applications on running on comparable hardware? What I am trying to get at is if a web application can support more users, as far as hardware resources go, than the same windows based application running on terminal services?
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Nov 24, 2010
I have a rather popular application, and I was wandering if I could allow users to create add-ons for this software. I was unable to think of a method of doing this, and I do not know where to start. If you have any questions in order to provide a better response, feel free to ask.
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Jun 8, 2010
I recently finished an application which I spent a long time making, but when I sent it to my friends so they could beta test, everyone single one of them said it stopped responding on start up. I took the .exe out of the project>bin>debug>application.exe and thats what I gave them, and it doesn't crash for me, so i was wondering what might be causing it to crash, or if they would need extra files for it to work properly?
Also, when my friend opened it, he says he got an error that says:
Name: Microsoft .NET Error
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May 10, 2010
I use a fontdialog box in my application allowing users to change the font details within my application. This works fine but unfortunatly I don't seem to be able to set the values in the dialogbox as they are read only.
Basically if the user has Bold Wingdings set and wishes to change it to something else then when they open up the fontdialog box I would like to be able to set the font to wingdings and bold so the user can see what they previously selected. Word seems to do this so why cant I?
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Aug 26, 2009
I am designing a fairly small application to manage a waiting area for a clinical department. There will be a receptionist who books appointments and updates exisiting appointments to say that a patient has "Arrived". In seperate rooms will be nurses who call patients who have "Arrived" and update the appointment as "In Session" and finally as "Discharged". The appointments are viewed in a flexgrid with nurses across the top and time down the left, patient names are displayed at the relevant times and the cells are shaded a colour to represent the current appointment status ("Booked", "Arrived", "In Session" and "Discharged").
I am using SQL Server as the back-end and Visual Basic 6 (I know) as my front-end.I have been told that there will be 2 or 3 nurses plus the receptionist logged in to the system but I would like to cater for growth.My question is what is the best mechanism to use in order to reflect the status change made by one user on the screens of the other users currently logged in?
I have been thinking about using a timer to refresh the data at a set interval but I do not want to keep hitting the server excessively (although what is considered excessive? we would be talking about a call for data every 60 secs per user). Plus the server could be serving data for many other applications so this is another consideration.Alternatively I have been thinking about sending some kind of message via Winsock to the other users notifying them of data changes as they happen. I don't have a lot of experience with this and am concerned about clients not receiving messages and users seeing old data. It also seems strange to me that once the days appointments have been retrieved from the database that "in theory" a client could go the whole day without having to query the database again to pick up changes - kind of scary.Some information on the data:We would probably be looking at around 100 appointments per day We capture patient name, date of birth, date and time of appointment and appointment status.What is the standard approach / best practice for this kind of scenario?
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Jan 7, 2011
count the number of users used an application?
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Jan 7, 2011
Is it possible to create a VB.Net application which users can just run without installing it first.If not, is it possible in another .Net language.The application only has to run under Windows (>= XP).
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Mar 19, 2012
I am writing an App that automates file uploads from users desktops to a specified file server. On the first run of the app, I need the user to select a file server and save it for all other users of that PC. I thought I could do this
with application settings but it appears it is not suitable for this purpose. I need suggestions on how I can make this work.
I thought about a registry setting but the user may not have permission to edit the registry based on group policy/security settings.
I also thought about creating an XML file with the file server name that I can read from the installed project directory, but I was hoping there was a more streamlined way.
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Jun 21, 2010
i'm developing an application with vb.net and mysql. I want to add additional users to the application but with different access levels. this is my original code [code]If i add a third parameter named level to the sql statement, how do i determine which form shows???
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Jul 15, 2010
I want to build an application that checks every second for certain windows and then react according to that.
My Goal:I'm building the application for a pc in a Students Home with about 10 users. To create 10 different user accounts for windows will be annoying and crowded, because new people come in every year(or couple of months) and then old accounts have to be deleted and new ones created.
I want to build an application that accepts folderPaths or window names.Lets say user1 creates a folder with the name "Susan" that she wants to protect (her personal files/picture/work will be stored there. She opens the application, selects the folder. The application saves the folder path and her password that she enters.
If the application detects that a user is trying to open/move/delete/copy/whatever that folder, the app must pop up a password box. Correct password gives her the freedom she wants, wrong password just ignores the open/move/delete/copy/whatever command.
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Jul 9, 2009
Is there a way that we can use that Add data source wizard that is in vs to our own apps?
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Jun 7, 2011
What would be the best way to show how many users are using your Application. For instance, Having a label show how many users have used it/are using it.
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May 30, 2009
I created a simple application that when a user logons onto their Windows account, the application pops up to display the computer usage agreement.آ The user at this time has the option of accepting it or declining it. If declined they are logged out of windows, and if they accept they can continue using windows. When I installed the application logged on as the administrator, it only installed in the administrator profile, thus not allowing the application to be run from startup under any other account except admin.آ My first question is, how can I install this application that is it accessible to all user accounts? The second question is how can I program the application to freeze windows until the user clicks the accept button, without puting a timer event that if the accept button is not clicked in a certain amount of time to log off the user.
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May 14, 2010
how can I overwrite the excel file without prompting the users in VB.Net..I have try this code but It doesn't work..
Dim xlsApp As New Excel.Application
Dim xlsBook As Excel.Workbook
Dim xlsSheet As Excel.Worksheet[code].......
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Feb 7, 2010
how do I prevent my users for more than one simultaneous login per account. I am using Vb.Net SQL.
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Jul 14, 2010
When it is installed on a machine, it will run for all users. But for some users, it is unable to get some data from the database. I have found out that if it is run-as either administrator,or in winxp compatibility mode, it works. But if not, then some users have the problem.The database is in the same C: drive location as the exe, and it doesn't change from user to user.The computer is using windows 7 professional 32-bit.
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Oct 28, 2009
I have a simple application with a main form and an options dialogue. The options dialogue has various TextBox's and drop downs where the user can make changes and OK/Cancel buttons for when they're done.On the FormClosing event of the main form, I save these settings to an XML file. When the program is first run, the settings are loaded back into the options dialogue. The application reads settings directly from the controls in the options dialogue during run time.
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Jan 26, 2009
Do users of windows applications have to have the database application installed if your program uses databases to store information? For example, when making VB2008 programs, if I use the visual studio express database (.sdf), or maybe a MSAccess database, to store information within my visual basic program...when I deploy the application to the users, can they run the program okay even if they don't have MSAccess installed on their computer?Also, do I need to have MSAccess installed in order to write programs that use MSAccess databases?
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