I have developed some software with no database. I want to create an .exe of my .Net project so I can give only the .exe file to users to use the software.
Unfortunately I don't know how to create an .exe of my project in .Net.
I have this pretty simple application, it uses a webService to transfer data to my servers DataBase. Now it is very important for me to keep this application as one single file, and not having some XML files needed for it to work, but this is the case. I think the XML file holds the information to this webService, so without it the application crashes. Is there a way to get the application to work without this XML file, or a way to put the XML inside the exe archive?
View 1 Replieswhat is the different writing code application vbnet 2005 application for single user and multiuser?
View 3 RepliesI'm writing vb.net code with MS Visual Studio 2005.When running my application I get "foo.exe is already running on this machine".(Even though I'm running faa.exe instead
View 14 RepliesI have outlook 2003, Now in my application til now i tried loading bulk of emails from folder to my application.But now i need to select a single email and load to application.How to achieve this?
View 1 Repliesin vb 2008 express this option is available under application properties. does anyone know what is its function? does it make it so that it's impossible to open two instances at the same time?
View 3 RepliesIs there any way of restarting a single instance application, which is deployed via clickonce?
View 1 Repliesi am using "Animated Window Effects with "Toast" popup demo" code from the code bank created for jmcilhinney. I put a NotifyIcon control on it and check Make single instance application on the project properties windows. the problem is that every time that i launch the app it creates one instance on the system tray of the app. i can not figure out how to over come this attached is a copy of my project.
View 10 RepliesI need to know how to run an application on client machines from a Central location for example from an application server?
View 3 RepliesMost of the apps I write have a base / home form and a few other forms (three of four typically) which pop up in response to controls clicked by the user. I'd like to be able to set some properties to be the same for all the forms in an app; particularly properties like BackColor and FormBorderStyle. Yes, I can manually set the individual properties for each form in the VB IDE, but I'd prefer to be able to have one line of code in the base / home form for each property along with one line for each dependent form which says something to the effect of "use the same property value as the base / home form has". Overall, my objective would be to have one single line of code in the app which, when changed, would apply the changed property to all the forms. For example, a single line which I can change to take the BackColor from Apple to Orange for all the forms ...
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I have a VB .NET application set as single instance. When I try to launch the application the second time its window is restored to its normal windowed state instead of being maximized (like it was before attempting the second launch). How can I make the application window to preserve its last state?
View 1 RepliesI want to perform two hashing operations concurrently on a single file, without reading the file twice. Is there some way to share the FileStream between two synchronized hashing threads? For example:
Dim Stream As New IO.FileStream("...", IO.FileMode.Open)
Dim HashA, HashB As Byte()
Dim A = New System.Threading.Thread(Sub()
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Maybe some way of caching a stream? Trouble is, I don't want the entire file in memory at once (it could be many gigabytes in size) and I don't want the file read more than once, due to speed issues. I want the file cached only sufficiently to ensure that both threads can work.For example, suppose at some point in time, thread A had read 100k of the file, but thread B had only read 20k of the file. The portion of the file between 20k and 100k should be cached; but then progressively forgotten as thread B catches up. Then again, if thread B is too slow, we might still end up with hundreds of megabytes being cached.Maybe thread A should be made to wait while thread B catches up. Maybe the ReadByte() function of the stream should block for a while if one of the threads is too far behind?
I'm trying to build a single-instance application, but not in the traditional sence. Instead of a simple silent prevention of launching a second application, I want it to send a message to said application so it launches a second mainform in my original process.
(I want some read-only cache (language, style,...) shared, and a few sources like local settings shared, but other then that all resources reside in the mainforms and act as seperate applications.)
(I'm not looking for specific code, more for hints/tips and/or general directions, more specificaly on what parameters do you check process equality, and what method do you use to pass the message? Windows Messages? Sockets? ...)
I am a fairly rookie programmer who is trying to learn the basics of n-layered architecture (DAL, BLL, UI). The application I am programming is a single tier, 3-layer application written in VB.NET (.Net 3.5). Layers as follows:
DAL
BLL
UI
COMMON - contains DTO's right now.
I am having trouble determining what to pass between my BLL and UI. My instinct tells me that I should only pass data to the UI, and not the full business object from the BLL. Consider two scenarios:
1) Pass the BO directly from BLL to UI. This exposes BO methods and allows the UI direct access to the BO, which seems bad.
2) Pass only the pertinent data from the BO to the UI. For instance, a customer has a Name and Address. This data is really what we want to show/edit in the UI, so we would only return that data to the UI instead of the full BO. The UI would then call to the BLL to update a specific BO.
I am inclined to use #2, but I don't know the best way to implement it. The way I have it programmed now, if I only return data from the BLL, all references to my BO's will be lost and the GC will claim them. Based on this, I have some questions:
1) Should I keep business objects alive between calls to the BLL? The alternative is to re-create them every time I pass data through the BLL, which seems wrong.
2) What is the best way to keep a BO alive in a single tier architecture (how to hold a reference if we dont pass it to the UI?)
3) How do n-tier applications do this? Do they keep the BO's alive in the BLL and wait for an update from the UI? Doesn't this require a lot of "book keeping" in the BLL to make sure BO's are released when they are no longer needed?
I've a winforms application that is using SQLite database. There is no encryption on the database (data has to be shared with other user). It is a stand alone application with a stand alone local database.
The difficulty I'm encountering is when people go to bring all the data together.The databases are attached, data imported, but records are differentiated by a database GUID.At any rate I am desiring to have a database selection screen that is protected by a password to prevent users mistakenly switching databases (and some level of protection against malicious use).
Thinking it's probably not a particularly good idea to store the password in an unecrypted database.Security is not a large issue as this is only distributed to users that need the software.
What would be the best method to have the user type a password when they attempt to access the database selection screen? ShowDialog? Pop open a new child form with a password TextBox, then on validation (via button?) close the password form and open the protected form?I see a fair bit about protecting a whole application, but not so much about a specific form.
I have a windows forms application with one exe and several dlls(Class libraries) in a single solution. The application uses common data that is used across all the dlls. I would like to load the data when the application is starting up and use the loaded data at various points in the dlls so that I do not have to load the common data again and again. How can I share the data loaded in main EXE across the DLLs?
View 2 RepliesI have set the "Make single instance application" check box.And when my application version is 1.0.0.0 for example, it is OK and won't load multiple instances.But when I create a new version, for example 1.0.0.1, then I can run 2 instances of my application, when the 1st instance is 1.0.0.0 and the second instance is 1.0.0.1.What should I do to prevent this?
View 2 RepliesHas anyone using VB.NET 2010 been able to create a single instance application? I've followed the MSDN sample but it does not have an Application.xaml file. Converting any C# samples to VB doesn't work as I cannot override the Main sub in Application.xaml (C# calls it App.xaml).
View 2 RepliesI am writing an calculator application and i dont know what datatype to use. i mean should the variables be single, double, decimal...?
View 1 RepliesI am wanting to expand my programming knowledge base and the only way I know to do that is to actually do stuff. I am wanting to write an application that performs common systems tasks from a single location. Just simple things like deleting text files, maybe displaying drive space, etc. In order to even begin to do this I have to understand more about the my.computer class in VB. Does anyone have some good info that breaks this class (and possibly related classes) down hierarchically? MSDN offers a lot of info but doesn't really give a lot in the way of explaining how certain classes are interrelated.
View 5 RepliesI have an .exe file which is using a .dll file.I want to make an .exe file which will do the work. The reason I want to do this is to hide that dll file from the user.
View 3 Repliesextract a single file (WantedFile.xml) from a .ZIP file (THEBIGZipFile.zip) using native VB.NET Code?I think .NET FW 3.5 or 4.0 has "System.IO.Packaging.Package " which can be used? Not sure. Please advice.
Note: I will not be able to install or distribute any other DLLs like (ICSharp or VJ# or cant use process command to invoke winzip etc).
I wish to turn on the Single Instance Application choice in Visual Studio 2008 properties. To do so, I must choose "Enable Application Framework". When I do that, my ONLY choice is to choose a Startup Form, not a Startup object. This makes no sense to me. I have a tray application, and I check to see which form I should load, a logon form, or the main form. But since I am forced to choose a startup form, I MUST load the logon or main form to begin with. But I don't want to. I want startup code to determine which one to load first. So then I am playing with making the OTHER form invisible, even if the startup form, but that is a mess.
View 4 RepliesSay I have a code with 3 methods that do some pretty intensive work. Would executing these methods on 3 seperate threads be faster then executing them one after the other on a single core cpu? And what if it's a dual core or HT?
View 8 RepliesI am trying to make a list, separated by a comma, of entries from a single column in a SQL database. I have been spending the last several days searching for a way to do this, but every thing I found either didn't work, or wasn't exactly what I was looking for.
The query will pull all the email address that are not null. What I need to know is how to take the result of that query and make it look like this:
email0@address.com, email1@address.com, email2@address.com, etc, etc, ...
I feel like I should know this, but for the life of me, I can't remember nor can I find it in any of the textbooks I have.
I am using Visual Basic 2010 and SQL Server 2005. I also have access to Visual Basic 2005 if needed.
I use SqlParameters when executing database statements. I know that I can replace a single quote with two single quotes... but in the past SqlParameters took care of this for me. I have two projects.. in one, the SqlParameter does this and it handles single quotes fine, in another, it does not and I'm at a loss why (I even copied and pasted the code):
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I am trying to use the DGV to view various properties from a variety of different class instances. Is it possible to bind each cell individually?
View 9 Replieshow can i make my VB 2008 project just one single .EXE
View 8 Repliesi got 3 text files with me. one has the emails another one has the hash.. i want to merge them both into a single file.[quote]first file contains : [URL]..second file contains hash which corrsponds to the password of the users in the text file 1 :which i have to merge like: [URL]..There is a trailing space at the beginning and end of each line in both the files. just a single space i got to remove that too..
View 10 RepliesI am trying to update a row or a single cell in ms access through vb.net. But when i update the text box named NRIC, say for example i want to update "s4522147B" to "tr4521856C" and mean while leaving the other fields the same.
But the thing is when i make the changes in nric.text (textbox), the dataset actually updates the whole column in the table instead of the selected textbox.
Below is my code for the update part
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