I am making a little program to copy pictures form one location to another. The information for the pictures are stored in a database so I need connections string and also I create a txt file with the final output from the operation and I want to store these two values in a App.Config.xml file.
The structure of my project is very simple :
And the XML files itself is :
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<connectionStrings>
<add name="MyDB" connectionString="Data Source=.\\DVSQLEXPRESS08;Initial Catalog=**;Persist Security Info=True;User ID=**;Password=**;MultipleActiveResultSets=True" />
</connectionStrings>
<createResultFile>
<add key="ResultFile" value="C:\Users\dv\Desktop\Leron\PictureStatus.txt"/>
</createResultFile>
</configuration>
I want to use the connectionString and <createResultFile> value in my PictureTransferTool.cs. This is my first time working with XML file and C# (.NET in general) so I want what is the way to retrieve those config values?
You config file must be like below...
Config File :
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="ResultFile" value="C:\Users\dv\Desktop\Leron\PictureStatus.txt"/>
</appSettings>
<connectionStrings>
<add name="MyDB" connectionString="Data Source=.\\DVSQLEXPRESS08;Initial Catalog=**;Persist Security Info=True;User ID=**;Password=**;MultipleActiveResultSets=True" />
</connectionStrings>
</configuration>
C# :
You can read Connection String like below
var connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["MyDB"].ConnectionString;
Console.WriteLine(connectionString);
You can read User Defined Settings like Below
var Resultfile = System.Configuration.ConfigurationManager.AppSettings["ResultFile"];
Console.WriteLine(Resultfile);
The Way I normally do user-defined parameters in my app.config is i put them in the appSettings tab.
<appSettings>
<add key="myStr" value="String Value" />
and then you can access it with
string myStr = System.Configuration.ConfigurationSettings.AppSettings["myStr"];
It works for me.
Linq;
using System.Xml.XPath;
...
var doc = XDocument.Load("test.xml");// You should put the way to your XML
var name = doc.XPathSelectElements("/configuration/connectionStrings/add").Value;
var name = doc.XPathSelectElements("/configuration/createResultFile/add").Value;
Related
I am trying to save some settings to the appSettings section of my configuration file so I may use the data to carry out the processes of the program. On the click of a button I want the data coming from the user to be saved in the config file. The code I am using is:
private void button1_Click(object sender, EventArgs e)
{
System.Configuration.Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
config.AppSettings.Settings["key1"].Value = "value1";
config.AppSettings.Settings["key2"].Value = "value2";
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection("appSettings");
}
Before the code is executed my app.config file looks like this:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
</configSections>
<appSettings>
<add key="roshane" value=""/>
<add key="email" value=""/>
<add key="super" value=""/>
<add key="phone" value=""/>
</appSettings>
<connectionStrings>
<add name="AutoReportEmailerConnectionString"
connectionString="Data Source=roshane\sqlexpress;Initial Catalog=ICR_v5.0;Integrated Security=True"
providerName="System.Data.SqlClient" />
</connectionStrings>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
</startup>
</configuration>
After the code is execute the programName.exe.config file is the same as the app.config. Is there something I am missing why the values are not being added to the programName.exe.config file?
config.Save(ConfigurationSaveMode.Modified) works only when you modify an exisint key in other words a key that was in the web config before if you need to actually add key values to the web config just call config.Save() with no parameters
If you want to add new Key to config file, need to add it first in Settings collection:
config.AppSettings.Settings.Add("Key", "Value");
Then call Save method.
I have a config file in a wpf project to store the connectionstring.
But when I try to get AppSettings and ConnectionStrings, I get null.
the WEB.config file is like this:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<connectionStrings>
<add name="Trackboard" connectionString="Data Source=(localdb)\v11.0;Initial Catalog=Trackboard;Integrated Security=True;AttachDbFileName=E:\Users\Sean\Workspace\DATABASE\Trackboard.mdf"/>
</connectionStrings>
<appSettings>
<add key="Trackboard" value="Data Source=(localdb)\v11.0;Initial Catalog=Trackboard;Integrated Security=True;AttachDbFileName=E:\Users\Sean\Workspace\DATABASE\Trackboard.mdf"/>
</appSettings>
</configuration>
I tried in several ways:
W1: ConnStr = ConfigurationManager.ConnectionStrings["Trackboard"].ConnectionString;
W2: ConnStr = ConfigurationManager.ConnectionStrings[0].ConnectionString;
W3: ConnStr = ConfigurationManager.AppSettings["Trackboard"];
W4: ConnStr = ConfigurationManager.AppSettings[0];
None of them worked.
But this one worked:
ConnStr = #"Data Source=(localdb)\v11.0;Initial Catalog=Trackboard;Integrated Security=True;AttachDbFileName=E:\Users\Sean\Workspace\DATABASE\Trackboard.mdf";
(That means I cannot use a config file, which is against my will)
I need help.
Just add an app.config and not web.config because it is not a web application.
And after that it's too simple, just add a reference to to System.Configuration and then use this.
var ConnStr = ConfigurationManager.AppSettings["Trackboard"];
This one use System.Configuration namespace
using System.Configuration;
Or add System.Configuration in reference
System.ConfigurationManager.ConnectionStrings["Trackboard"].ConnectionString;
System.ConfigurationManager.ConnectionStrings[0].ConnectionString;
I've figured it out!
I shouldn't have created a new config file. There is a default app.config file in the project.
Now everything is fine.
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
</configSections>
<connectionStrings>
<add name="Trackboard.Properties.Settings.TrackboardConnectionString"
connectionString="Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\DATABASE\Trackboard.mdf;Integrated Security=True"
providerName="System.Data.SqlClient" />
</connectionStrings>
</configuration>
private static string ConnStr = ConfigurationManager.ConnectionStrings["Trackboard.Properties.Settings.TrackboardConnectionString"].ConnectionString;
My goal is to programatically update a .config file belonging to another application.
I start off with a simple config file that looks like this...
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<connectionStrings>
<add name="Test1" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true" providerName="System.Data.SqlClient"/>
</connectionStrings>
</configuration>
I then run my code to update the connection string named Test1 and rename it to Test2...
var configMap = new ExeConfigurationFileMap() { ExeConfigFilename = #"test\app.config" };
var externalConfiguration = ConfigurationManager.OpenMappedExeConfiguration(configMap, ConfigurationUserLevel.None);
externalConfiguration.ConnectionStrings.ConnectionStrings[1].Name = "Test2";
externalConfiguration.Save(ConfigurationSaveMode.Minimal, true);
This saves the configuration file, but now looking at the file you will see some other data has been added to it...
ConfigurationSaveMode.Minimal
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<connectionStrings>
<add name="Test2" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true"
providerName="System.Data.SqlClient" />
</connectionStrings>
<system.web>
<trust level="Full" />
<webControls clientScriptsLocation="/aspnet_client/{0}/{1}/" />
</system.web>
</configuration>
ConfigurationSaveMode.Modified
Using the Modified setting I get even more "stuff"...
<configuration>
<appSettings />
<configProtectedData />
<system.diagnostics />
<system.windows.forms />
<uri />
<connectionStrings>
<add name="Test2" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true"
providerName="System.Data.SqlClient" />
</connectionStrings>
<system.net>
<authenticationModules />
<connectionManagement />
<defaultProxy />
...snip...
What is this data and where has it come from? More importantly how can I stop it from being written into my file?
Try changing the ConfigurationSaveMode from
ConfigurationSaveMode.Minimal
to
ConfigurationSaveMode.Modified
Modified only saves the properties that you have changed.
From MSDN:
Full
Causes all properties to be written to the configuration file. This is useful mostly for creating information configuration files or moving configuration values from one machine to another.
Minimal
Causes only properties that differ from inherited values to be written to the configuration file.
Modified
Causes only modified properties to be written to the configuration file, even when the value is the same as the inherited value.
The way I have solved this was to set the Machine Configuration File to be the same as my EXE Configuration file, this way the .net Configuration object does not see that there is any difference between Machine and EXE when it is saving.
For example:
var fm = new ExeConfigurationFileMap();
fm.MachineConfigFilename = fm.ExeConfigFilename = #"C:\dude.config";
var c = ConfigurationManager.OpenMappedExeConfiguration(fm, ConfigurationUserLevel.None);
// Do Stuff
c.Save(ConfigurationSaveMode.Minimal, true);
This way you should not get the section in your config file upon save.
I have created a console application and an app.config file and Connections.config file.
The app.config file has a connectionstring property source pointing to the Connections.config
When I tried to read the connection string in the application, I get a ConfigurationErrorException
This is my main method.
static void Main(string[] args)
{
var settings = ConfigurationManager.ConnectionStrings;
if (settings != null)
{
foreach (ConnectionStringSettings setting in settings)
{
Console.WriteLine(setting.ConnectionString);
}
}
}
App.config file
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<connectionStrings configSource="Connections.config"></connectionStrings>
</configuration>
Connections.config file
<?xml version="1.0" encoding="utf-8" ?>
<connectionStrings>
<add name="SQLDBConnecion"
providerName="System.Data.ProviderName"
connectionString="" />
</connectionStrings>
Here I observed two things.
First: If I specify configSource I am unable to read the connection string (throwing exception.)
Second: If I put same connection string in App.config file and tried to read then the code is working but getting two connection string (which supposed to be return only one which is empty string)
The first connection string is sqlexpress connection string like this
data source=.\SQLEXPRESS;Integrated Security=SSPI;
AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true
second connection string it returning is empty string (This is expected).
I want to read connection string from external file like in my scenario. How to do that? What am I missing here?
MSDN says:
Do not include any additional elements, sections, or attributes.
You need to remove the XML encoding.
Edit
Also, you need to set the properties of your config file to Copy to Output Directory = Copy if newer or Copy always.
Edit 2
To build on what Dave said, you add the clear element to your external file. Your final Connections.config file should look exactly like this:
<connectionStrings>
<clear/>
<add name="Name"
providerName="System.Data.ProviderName"
connectionString="Valid Connection String;" />
</connectionStrings>
Your Connections.config file should be as shown below without the xml header
<connectionStrings>
<add name="SQLDBConnecion"
providerName="System.Data.ProviderName"
connectionString="" />
</connectionStrings>
Also for it to correctly locate the file in your console application, please set the Copy to Output Directory to Copy Always or Copy If Newer.
That first connection string you are getting is inherited from the machine.config. This is described in the MSDN documentation. http://msdn.microsoft.com/en-us/library/bf7sd233(v=vs.90).aspx
You can use the Clear tag in your config file to remove inherited connection strings.
http://msdn.microsoft.com/en-us/library/ayb15wz8(v=vs.90).aspx
<connectionStrings>
<clear/>
<add name="SQLDBConnecion"
providerName="System.Data.ProviderName"
connectionString="" />
</connectionStrings>
There is a nice article on MSDN: https://msdn.microsoft.com/en-us/library/ms254494(v=vs.110).aspx.
Quote from the article:
To store connection strings in an external configuration file, create
a separate file that contains only the connectionStrings section. Do
not include any additional elements, sections, or attributes. This
example shows the syntax for an external configuration file.
<connectionStrings>
<add name="Name"
providerName="System.Data.ProviderName"
connectionString="Valid Connection String;" />
</connectionStrings>
Hope this helps people who run into this question later.
This is my first time using an XML config file. In the solution explorer I right click, add, new item, application config. file.
I then edited the file to read...
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="Key1" value="1000" />
</appSettings>
</configuration>
...and tried to access it with...
Int32.Parse(ConfigurationManager.AppSettings.Get("Key1"));
...but it says that the parameter is null. I looked at just ConfigurationManager.AppSettings and it's AllKeys property has dimension 0.
What am I doing wrong?
Thanks!
Right-click on your project, choose Properties>Settings tab and edit your settings there because the config file is not the only place these values are stored at.
In your code use Settings.Default.MySetting to access the settings.
You'll need to add using MyProjectName.Properties; to your using statements in order to access the settings this way or you'll have to fully qualify it as MyProjectName.Properties.Settings.Default.MySetting...
I know this is super old but I just encountered this opening an old project. A reference to System.Configuration was missing.
To ensure get information from App.config using ConfigurationManager.AppSettings["<Key name>"]; be sure to set your values inside <appSettings> section.
Example:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
</startup>
<appSettings>
<add key ="IntervalSeconds" value ="60000"/>
<add key ="OutputPathLog" value ="\\myserver\hackingtrack\Projects\Log\"/>
<!--Jorgesys si Elenasys sunt puisori-->
<add key="InputFeeds1" value="https://cld.blahbla.com//portadaKick.json" />
<add key="InputFeeds2" value="https://cld.blahbla.com//portadaKick.json" />
<add key="InputFeeds3" value="https://cld.blahbla.com//portadaKick.json" />
</appSettings>
</configuration>
Retrieving values:
string intervalSeconds = ConfigurationManager.AppSettings["IntervalSeconds"];
string inputFeeds1 = ConfigurationManager.AppSettings["InputFeeds1"]; ;
string inputFeeds2 = ConfigurationManager.AppSettings["InputFeeds2"];
string inputFeeds3 = ConfigurationManager.AppSettings["InputFeeds3"];