I'm currently working on WPF App which is calculating things for long string and storing this values in decent variables. By now im storing this values in my local SQL database and showing it by datagrid in WPF window. In the future i want to use this app on others computers, every user would be able to store their values from strings. In this way other users won't be able to use this, because there is my connection string and no database mine database. I need a solution for this. What is the best way to store this items, considering this app would be run on many machines? I need 2 options (FREE users - storing localy in theirs PCs, and Premium (online database, maybe Azure would be ok?)
XLS is only for Excel instaled user, i won't to use this way
Maybe a embeddable database like SQLite should do the trick
Related
I'm working with WPF application with local SQL database using Visual Studio.
I'm wondering about how can I install the database together with the application to make it work properly on another computer?
Sounds like you want to get your app working with SQLite, which is a database designed for a single application to store its data in.
There are many other types of embedded database, of course.
And if you need multiple people to use the database from separate applications, then you have to install the database separately, and you can't bundle the database with the application.
I'm totally new to Windows 8 programming and I am writing Diary application for Windows 8 on C# right now. It stores diary's notes which user writes. The question is following: how do I store this notes so that user (and program) can easily access any of them via dates? I've thought of storing each of them in a separate file or all of them in one, but this seems not a good idea for me. Using some sort of local database would be nice, but is there anything like this among inbuilt Metro development tools?
You can use SQLite as your database: http://timheuer.com/blog/archive/2012/08/07/updated-how-to-using-sqlite-from-windows-store-apps.aspx
I'am programming a Windows 8 Store App (Metro Design) with C# and XAML using Visual Studio 2012.
There is no need for a database server with multi user support etc.
I want to store my data in a local database and don't know which database is suitable for my needs.
Maybe SQLite? Or are there solutions that fits better for Windows Store Apps and integrates better in Visual Studio?
The app is kind of a calender and the database should store the user data that consists of the dates, tasks and so on.
SQLite is supported for WinRT.
http://visualstudiogallery.msdn.microsoft.com/23f6c55a-4909-4b1f-80b1-25792b11639e
SQLite is the recommended database to be used for Win 8 Apps.
Links for implementing the same
http://timheuer.com/blog/archive/2012/08/07/updated-how-to-using-sqlite-from-windows-store-apps.aspx
http://code.msdn.microsoft.com/windowsapps/Using-SQLite-Asynchronously-b8372137
https://visualstudiogallery.msdn.microsoft.com/23f6c55a-4909-4b1f-80b1-25792b11639e
Ok, this is a great question that I had to learn the hard way. By default WinRT applications do NOT have access to, directly at least, to any type of database structure. This means no Express, Compact, CE, SQLite etc.
There are three ways around this. Do not use a database and instead use a local file structure where you store and retrieve your data. XML works very nicely with this because you can maintain many of the same features a database would give you.
The second option is to use IndexedDB. It is similar to a cookie style local storage model where files are saved in your apps local apps folder.
The third and final option is to use web services. WinRT does have access to the internet which means you can write API and WebServices that can be called. This does mean that you need to have a server running which is connected to a master database. When your app needs data it calls your web service and obtains what it needs.
Overall, for the application you are describing the first option may best suite your needs. Keep a local XML file in your apps folder and read/write from it.
My question was marked as a duplicate of this question (although it was about C++ not C#). I thought I should still post my findings here. C++ apps have another alternative:
Extensible Storage Engine (ESE)
The list of all such API available for Store apps can be found on this link under the section Jet.
As one of variant:
Devart LinqConnect for Metro – a fully-functional high-performance ORM solution for developing Windows Store applications using either of LINQ or ADO.NET to access data.
http://code.msdn.microsoft.com/windowsapps/A-Simple-Windows-Store-85f29843#content
or next link can be usefull to
http://social.technet.microsoft.com/wiki/contents/articles/18417.windows-store-app-with-a-sqlite-database.aspx
I am working on a windows app. The user has to register first to use this application. So in order to store user information, I am using MS-Access as a database. There is not much information to be stored as this application will be on individuals machine. There are few settings and some user information to be stored.
What I am feeling is that with the use of MS-Access, my application will be dependent on other application as MS-Access. It is not necessary to have the MS-office on the end user's machine.
So can you suggest me the best way to store the data safely without any dependence.
One thing I want to clear is that, the information will be of different types like it will consists of user information, some folder/files paths and some other information. I would like to keep these information separate from each other.
Thanks
Abhie
I think I found the solution.
Best practice to save application settings in a Windows Forms Application
I hope this will help others facing same problem.
Stackoverflow Team You are doing fabulous job. One suggestion; can you put some chat option for developers to discuss their problems. I think this would make it more easy to find answers to complex problems...:)
Regards
you need to include Access Database Engine drivers in the client PC, in order to connect it .
MS Access Database Engine
If you're using .NET, the best bet for getting the recommended folder locations for application data (e.g. your mdb file) is probably best retrieved using Environment.GetFolderPath
See:
http://msdn.microsoft.com/en-us/library/system.environment.getfolderpath.aspx
You're likely interested in ApplicationData or LocalApplicationData for user specific data or CommonApplicationData for data shared by all users as your storage location (and then the proper company / product subdirectories appended to it).
I would like to have a lot of data (quotes of famous people, arround 100 k quotes). And I want that users are able to search, sort on category and sort on authors.
Got a big big xml file at the moment, but what is smart to do? How can i get all the quotes in the app? maybe a sql lite database? or just loop the xml when app starts?
Any tips are most welcome!
Kevin
UPDATE: Thanks for all the replies and tips, I really appreciate it and I am looking forward to program my App, did make a runkeeper-like app yesterday, now starting the quotes app.
I would recommend storing this data on a webserver somewhere and using some SOAP interface of something like this, to access it. I wouldn't be positively surprised when a downloaded application all of a sudden decides to download a big file of quotes.
I would recommend a SQL CE database (.sdf file)
Great overview here: http://windowsphonegeek.com/tips/Windows-Phone-Mango-Local-Database%28SQL-CE%29-Introduction
And here: http://msdn.microsoft.com/en-us/library/hh202860%28v=VS.92%29.aspx
There's no SQLite on WP7. There's SQL Server Compact though. Read up on the latter, and also on LINQ. WP7.5 only.
Alternatively, store data on the Web server, and use a service to pull it on demand. In that case, read up on services and SOAP.
With the fact that you are looking at a 500mb file I think you have a couple of options.
1) Put all of this data in a database on a webserver, then have your phone application use whatever method you like to contact the database to get specific data that is needed. Obviously your UI would have to be optimised to allow a user to sort by the type of quote and / or the person to whom the quote is attributed.
2) If you want this to be done without the use of the webserver you could have a stripped down basic database of quotes in the application itself, to extend this connect to the database and download more data.
This method may be best as it lets you use the database data to say populate a website if you wanted to (make a bit of money from ad revenue / promote your app) and also it means if your users dont have an internet connection they can still get some use from your app.
Without more knowledge of the platform I couldnt say what would happen if you try load a 500mb application but I doubt it would be good, though having such a large file locally is a bad idea for a mobile device. I can see this going two ways.
1) Im out and see your application, I set it downloading, pay it no attention and then later check to find it has downloaded 500mb over my mobile phone data package. This could mean a big bill.
2) I start to download your application, it hasnt finished downloading after 10mins, I delete it and dont bother trying again.
You can do something like let the user to enter three character minimum before search from webservice ans user the service result to bind the data.
Check the following links
How to connect to a Webservice from a Windows Mobile Device 6.0
http://msdn.microsoft.com/en-us/library/aa446547.aspx
Let me know if this helps.