I want to have a save preference option in my WinForms application. The user chooses yes/no and has an option to save preference, upon which the yes/no will be remembered and a form for such a choice will not be popped upon further re running the application.
I read about going to setting and changing but how to do it for different users, since all of them would choose for diff options and I need to maintain that.
Simply using a boolean variable will not help since it will be single user specific. Any suggestions?
(1) At event close main form, you call method/action save result. See How to save data when closing event happen in WinForms?
You can save it to XML file (or text file, SQL lite, SQL Server, etc), popular way is XML file(s).
Read XML file to get saved result before processing business logic in your WinForms application at Load form event or another event type at early stage of application start-up period.
(2) You also save result at previous period in config file https://stackoverflow.com/a/453230/3728901
Properties.Settings.Default["SomeProperty"] = "Some Value";
Properties.Settings.Default.Save(); // Saves settings in application configuration file
So since i didn't want a database , I am creating a file at the client side and saving the preference there.
At run time , I will read from the file and upon that , will decide whether to send form or not .
you can use a Model and store use selected config into it then you should serilaize it and save on database for specific user when reRun the application you can get config and deserialize it to Model and use it
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I would like to save a few values from text boxes that should be loaded into the text boxes every time I restart my program.
However, since my customers all use different values and should not re-enter them with every restart, I thought I could save these values somehow.
But I have no idea how to do that.
my program is also tied to a database if there is a clean way, I would choose that too. my customers all have an account to log in to. but it can also be a simple .txt or XML file, but how does that work?
I working with visual Studio C# WinForms.
Windows Forms comes with Settings, which allow you to save variable values and load them back up the next time your program is run. The Designer allows you to create settings and set the data types for them. See the Microsoft documentation in the link above for more information.
I am building an application where a user can dynamically add buttons at runtime.
However, I am not sure how I should be storing information without having to access a database. I have tried to store it in Properties.Settings.Default, but it does not support Button. Thus, I am using an XML file to store data. Is there any way to save button information (and all the other Controls) when the program terminates, and retrieve when restarted? (instead of using XML)
Edit0: just to make this question easier to understand, here is an example of what I am trying to achieve.
The application allows the user to add a new button and locate them by dragging. Right now, user is able to add new button and relocate it as needed. However, I am unable to save the state so that user can use the same 'layout' when the program restarts. I know that it is possible to save all state in a separate XML file, but this way seems very inefficient.
I'm currently facing a following issue,
I use xml file to store information and once my application is started it pulls data from xml file and based on that dynamically constructs views. The problem is that users can update data in xml file within the application and save it. However as views are already loaded with all data, user now doesn't see new data until application is restarted (closed and started again).
I'm looking for a way to refresh data inside certain elements after xml file is updated, or make it so it constantly checks data in xml file every time.
I'm thinking some sort of method that does this on a "save" button click when users update xml.
It looks like you are going to want something like the FileSystemWatcher.Changed Event. You can hook up to the event when the application loads, and know when the file changes. This will allow you to catch changes made both internally (by your program) and externally (by a text editor or something like that).
When a file change is detected, simply load the new file and refresh the views with the new data. This part can be a little complicated depending on how the data is loaded into the views. This could also require detection of changes in the views when external changes have also been made. Probably best to prompt the user before reloading. This all depends on your use case and the expected use by the user.
Sauce: http://msdn.microsoft.com/en-us/library/system.io.filesystemwatcher.changed.aspx
I have an application with some textboxes. My user fills the textboxes and runs some methods, when they close the application data is lost (normally).
I want to keep the value of a couple of textboxes and some local variables. It's not worth it to use database, and simple .txt files are not clean enough, is there any other simple and brief way of storing little volumes of data between application runs?
I'm not sure but have heard some wisps about resource files, are they good for this case?
Simplest way is binding your textboxes to application settings:
select texbox you want to preserve
go to Properties > Data > (ApplicationSettings)
add application settings binding to Text property
on FormClosed event save application settings
Saving settings:
private void Form_FormClosed(object sender, FormClosedEventArgs e)
{
Settings.Default.Save();
}
Next time when user will start your application, settings will be loaded from user-specific file, and textboxes will be filled with same data as it was before user closed an application last time.
Also in application settings you can store local variables, but you will have to add settings for them manually, and manually read that setting on application start:
open Properties folder under project > Settings.settings
add settings you want to store (e.g. MyCounter)
set MyCounter type, scope, and default value (e.g. int, User, 0)
read setting to your local variable var x = Settings.Default.MyCounter
on form closed save setting Settings.Default.MyCounter = x just before calling Settings.Default.Save()
There are a couple of options, but with most of them, you're going to be putting a file somewhere, whether it's a text file, resources/config or binary.
Using settings is one option: http://www.codeproject.com/Articles/17659/How-To-Use-the-Settings-Class-in-C
You can also take the serialization route: http://msdn.microsoft.com/en-us/library/vstudio/et91as27.aspx
Or you could possibly look into noSQL databases like MongoDB: http://www.mongodb.org/
You have the following options
A local Microsoft Access database which can store small footprint.
Use a Dictionary, Serialize / Deserialize to filesystem.
The Windows registry.
Assuming you're on Windows (as the tags imply), have you considered the registry?
I was just wondering if anyone has any input on how to save a C# Winform setting?
Currently, I have a form that has various radio buttons, directory browsers, date pickers etc. I was wondering what is the best strategy to save these settings to an external file that can be loaded at a later date. So essentially each configuration can be loaded, executed, and then another configuration loaded. Also, the configuration can be passed across installations / users.
Application-scope settings are read only, and can only be changed at design time or by altering the .exe.config file in between application sessions. User-scope settings, however, can be written at run time, just as you would change any property value. The new value persists for the duration of the application session. You can persist changes to user settings between application sessions by calling the Settings.Save method. These settings are saved in the User.config file.
Write and Persist User Settings at Run Time
Access the user setting and assign it a new value, as shown in the following example:
Properties.Settings.Default.myColor = Color.UserGreen;
If you want to persist changes to user settings between application sessions, call the Save method, as shown in the following code:
Properties.Settings.Default.Save();
I solved this problem with a class or struct which contains all settings. My form-class had a constructor which accepted such a setting-instance.
This settings-class/-struct was implementing ISerializable. So you can save it easily into files and load it from.
This is by far not the best way to do it, but it is quiet easy to implement.