Read/Write App. Config File with . NET 2. 0. Introduction. This is my first Code. Project article. I would like to show you the most important changes in the System. Configuration namespace with . Download your favorite videos. Download your web videos with RealPlayer. RealTimes Movies made from your mobile photos and videos. Send a download link to your phone: ### ###. Download Repair Corrupted Registry File Vista free software; Sccm Site Control File Serial Number free download programs; Free download Roses Outkast Midi File programs; Save Files Crusader Kings 2 download free; Coldfusion. The C# Language Specification provides a complete description of the C# language 5.0. File Name: CSharp Language Specification.docx. The document download requires 1 MB of disk space to download and. Read From a Text File (C# Programming Guide). How To Read a Linux File Line by Line. One of the most common errors when using scripts bash on GNU/Linux is to read a file line by line by using a for loop. Download this article for free (PDF). How to download and extract.zip file in. 0669bece0941/how-to-download-and-extract-zip-file-in-windows-8-store-apps?forum=winappswithcsharp Question 7 12/20/2012 10. NET 2. 0. I have looked at my blog referrer statistics and saw about 2. Google. Most of them were searching information on how to configure the new Enterprise Library but there are also a significant number of people that seem to seek answers to the following questions: How to read/write to App. Config? How to store a list of objects in a config file via the System. Configuration mechanism? Reason enough for me to shed more light on the System. Configuration namespace. The main changes from . NET 1. 0/1. 1 in the System. Configuration namespace are: Write to your App. Config file through the Configuration class. New configuration model for Windows Forms applications Store complex objects including object collections in your App. Config File It is possible to store Connection Strings in the App. Config file. See Connection. Settings which enables you to store your settings on an SQL Server. File handling with Windows.Storage APIs. Use these methods to read the contents of a text file in the local folder. The sample method returns the contents of the text file as a string.The Enterprise Library for Sample Sql. Configuration exercises this by implementing a Sql. Configuration. Source which can store and retrieve a Configuration. Section. So where to start? I think first I will show you the config file and explain how you can create it programmatically in your application. The easiest way to read/write App. Settings. If you want to store only key/value pairs in your App. Simply add an < appsettings> section and add your data as key/value pairs of the form < add key=. That's all to create a new app. App. Config =. Apart from the naming change you can now also write your application settings. For read only access you can look at the Show. Config function defined below. Writing the last modification time is demonstrated in the Main function. System. using System. Collections. Generic. System. Text. using System. Configuration. namespace App. Settings. . The following examples show the other features like the new Windows forms configuration mechanism, create your own configuration section and how you can easily store lists of objects in the App. Enterprise Library helper classes. Using the My. Settings Feature. When developing Windows Forms with VS2. The Windows Forms designers were so nice to create an access class automatically from your config values and came up with a consistent model to store application global config files in the app. Please note that the Forms configuration model is not available in class library projects since you have no App. DLL. When you add a settings file to your class library project you can merge the settings with the App. This can be useful if you want to enforce that every application that uses your library can have its own settings inside the App. You have the freedom to store your settings wherever you would like to. Any provider can be plugged into your config data access class by decorating your configuration class with the Settings. Provider. Attribute. If none is specified, the Local. File. Settings. Provider is used which relies on System. Configuration. This is the reason why you do not need to reference the System. Configuration assembly in a Windows form, but you see the System. Configuration assembly loaded in your Windows forms application. You can check it with the debugger in the loaded modules list. Below is a new Windows Forms project shown which was generated via New- > Project- > Windows Application. The new configuration features are visible in the Properties folder of your project. There go your resources and the automatically generated strongly typed resource access class with static properties to allow easy and type safe access to your resources. This is similar to the old C programming model with Windows resources. You had an header file with resource ids generated by the resource compiler which spits out a header file which is compiled (compile time checking of the existence of resources) and an object file which is linked into your target. Now you have also compile time checking in . NET if you access your resources via the static properties. The configuration features surface in the auto generated Settings. Settings. Designer. To create new configuration values you have full Designer integration within Visual Studio (see picture below). In your code you can read/modify these settings via the generated access class. Inside the visual editor you can choose between two scopes for each of your configuration settings: Application and User. The Application scope defines configuration values which cannot be changed by the user and are the same for all users of this application. User scoped settings on the other hand can be changed/created by, well the users and are stored within their local profile. Application scoped settings cannot be altered when you save your settings. Only the user settings are written to disk during a save operation! VS 2. 00. 5 generated Windows Forms application skeleton. Settings. settings (Generated by Visual Studio)='1. Settings. Filexmlns=. Now let's save our changed test setting: set. Setting = . To display some of your settings in your form you can use data binding and let your users configure the application font, color, .. User specific settings are stored in %APPDATA%\< App. Name> \< App. Name> < App. Config. Name. The path to the user config on my machine is e. This enables you to install a Windows Forms App as Administrator for all users with some global settings in the executable App. If your users are in a domain with a roaming profile they will get the same profile and thus the same user settings on every computer they work. Is this new mechanism compatible with the old one? Yes it is. Even more: these nice classes do rely heavily on the System. Configuration features. Each user/application section is put into its own Configuration. Section. Group. Collection which can be accessed programmatically. Every group does contain one or more configuration section/s of the type Client. Settings. Section which serves as a container for your strongly typed key/value pairs. The following code enumerates all your auto generated settings and prints them out to the Console. The purpose of this class is not that obvious but we can use it to open another file. Once you have learnt this little trick the rest is easy. Here is a little example that opens a file by specifying it's name, makes some changes to it and writes the changes to disk. Exe. Configuration. File. Map file. Map = new Exe. Configuration. File. Map(). file. Map. Exe. Config. Filename = @. It is the File. Configuration. Source which hides those strange things. Tom Hollander has a nice post explaining this already so I will not repeat the same here. How To Read/Write Serialized Objects. A more advanced way to store our settings is to create our own Configuration. Section. This makes our configuration values distinguishable from other configuration values inside the App. It is a little more complicated since you have to write your own class whose content is de/serialized to the App. I am going to show you at first the config file and then explain what code you need to write to read/save these settings to your application configuration file. App. Config (Taken from the Enterprise Library Configuration Migration Quick. Start Sample) < configuration> < config. Sections> < sectionname=. The name attribute of a section (in this example . The Editor. Font. Data class derives from the Configuration. Section class and uses the Configuration. Property attribute to create a mapping between the properties to de/serialize and the attribute names in names in the App. Config file. using System. Text. using System. Configuration. publicclass Editor. Font. Data : Configuration. Section. . Subsequent calls to Get. Section use the cached instance inside the Configuration. Manager. This constraint requires you to create every time a new instance for you e. Editor. Font. Data object if you want to write to the App. You even cannot add an object with the same name twice to the System. Configuration. Configuration object. Now comes the fun part: To edit an existing App. Configuration object. Only then the Save will succeed. Editor. Font. Data config. Data = new Editor. Font. Data(). config. Data. Name = . The . NET config mechanism supports setting inheritance from the Machine. Next comes the App. Config file which is selected by the Configuration. User. Level. None file. Points of Interest. There is much more to this topic which can be found at my blog. This includes an SQL Server Import tool to store your App. SQL server with the help of the (patched) Microsoft Enterprise Library. When you use the My. Settings Feature and add a settings collection with an auto generated settings class you will receive in the Appdomain. Current. Domain. Assembly. Resolve event handler the request for a not existing . This has something to do with the on the fly generated assemblies by Xml. Serializer but I do not understand why I should know about this. In the handler I had to alter my application logic to skip this not existing assembly. If you consider this a bug you can vote here. When you receive the error . You cannot alter a section since it is read only. To replace it you must first call remove and then add to set your new one. History. Released v. Code. Project which is based on my article at my blog which also dives into more details regarding the Enterprise Library Configuration system. Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.
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