ConfigurationManager.OpenMappedExeConfiguration Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Opens the specified client configuration file as a Configuration object.
Overloads
OpenMappedExeConfiguration(ExeConfigurationFileMap, ConfigurationUserLevel) |
Opens the specified client configuration file as a Configuration object that uses the specified file mapping and user level. |
OpenMappedExeConfiguration(ExeConfigurationFileMap, ConfigurationUserLevel, Boolean) |
Opens the specified client configuration file as a Configuration object that uses the specified file mapping, user level, and preload option. |
OpenMappedExeConfiguration(ExeConfigurationFileMap, ConfigurationUserLevel)
- Source:
- ConfigurationManager.cs
- Source:
- ConfigurationManager.cs
- Source:
- ConfigurationManager.cs
- Source:
- ConfigurationManager.cs
- Source:
- ConfigurationManager.cs
Opens the specified client configuration file as a Configuration object that uses the specified file mapping and user level.
public:
static System::Configuration::Configuration ^ OpenMappedExeConfiguration(System::Configuration::ExeConfigurationFileMap ^ fileMap, System::Configuration::ConfigurationUserLevel userLevel);
public static System.Configuration.Configuration OpenMappedExeConfiguration (System.Configuration.ExeConfigurationFileMap fileMap, System.Configuration.ConfigurationUserLevel userLevel);
static member OpenMappedExeConfiguration : System.Configuration.ExeConfigurationFileMap * System.Configuration.ConfigurationUserLevel -> System.Configuration.Configuration
Public Shared Function OpenMappedExeConfiguration (fileMap As ExeConfigurationFileMap, userLevel As ConfigurationUserLevel) As Configuration
Parameters
- fileMap
- ExeConfigurationFileMap
The configuration file to use instead of the application default configuration file.
- userLevel
- ConfigurationUserLevel
One of the enumeration values that specifies the user level for which you are opening the configuration.
Returns
The configuration object.
Exceptions
A configuration file could not be loaded.
Examples
The following code example shows how to use the OpenMappedExeConfiguration method to obtain all sections that are contained by the configuration file.
// Access a configuration file using mapping.
// This function uses the OpenMappedExeConfiguration
// method to access a new configuration file.
// It also gets the custom ConsoleSection and
// sets its ConsoleElement BackgroundColor and
// ForegroundColor properties to green and red
// respectively. Then it uses these properties to
// set the console colors.
public static void MapExeConfiguration()
{
// Get the application configuration file.
System.Configuration.Configuration config =
ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None);
Console.WriteLine(config.FilePath);
if (config == null)
{
Console.WriteLine(
"The configuration file does not exist.");
Console.WriteLine(
"Use OpenExeConfiguration to create the file.");
}
// Create a new configuration file by saving
// the application configuration to a new file.
string appName =
Environment.GetCommandLineArgs()[0];
string configFile = string.Concat(appName,
".2.config");
config.SaveAs(configFile, ConfigurationSaveMode.Full);
// Map the new configuration file.
ExeConfigurationFileMap configFileMap =
new ExeConfigurationFileMap();
configFileMap.ExeConfigFilename = configFile;
// Get the mapped configuration file
config =
ConfigurationManager.OpenMappedExeConfiguration(
configFileMap, ConfigurationUserLevel.None);
// Make changes to the new configuration file.
// This is to show that this file is the
// one that is used.
string sectionName = "consoleSection";
ConsoleSection customSection =
(ConsoleSection)config.GetSection(sectionName);
if (customSection == null)
{
customSection = new ConsoleSection();
config.Sections.Add(sectionName, customSection);
}
else
// Change the section configuration values.
customSection =
(ConsoleSection)config.GetSection(sectionName);
customSection.ConsoleElement.BackgroundColor =
ConsoleColor.Green;
customSection.ConsoleElement.ForegroundColor =
ConsoleColor.Red;
// Save the configuration file.
config.Save(ConfigurationSaveMode.Modified);
// Force a reload of the changed section. This
// makes the new values available for reading.
ConfigurationManager.RefreshSection(sectionName);
// Set console properties using the
// configuration values contained in the
// new configuration file.
Console.BackgroundColor =
customSection.ConsoleElement.BackgroundColor;
Console.ForegroundColor =
customSection.ConsoleElement.ForegroundColor;
Console.Clear();
Console.WriteLine();
Console.WriteLine("Using OpenMappedExeConfiguration.");
Console.WriteLine("Configuration file is: {0}",
config.FilePath);
}
' Access a configuration file using mapping.
' This function uses the OpenMappedExeConfiguration
' method to access a new configuration file.
' It also gets the custom ConsoleSection and
' sets its ConsoleElement BackgroundColor and
' ForegroundColor properties to green and red
' respectively. Then it uses these properties to
' set the console colors.
Public Shared Sub MapExeConfiguration()
' Get the application configuration file.
Dim config As System.Configuration.Configuration = _
ConfigurationManager.OpenExeConfiguration( _
ConfigurationUserLevel.None)
Console.WriteLine(config.FilePath)
If config Is Nothing Then
Console.WriteLine( _
"The configuration file does not exist.")
Console.WriteLine( _
"Use OpenExeConfiguration to create file.")
End If
' Create a new configuration file by saving
' the application configuration to a new file.
Dim appName As String = _
Environment.GetCommandLineArgs()(0)
Dim configFile As String = _
String.Concat(appName, "2.config")
config.SaveAs(configFile, _
ConfigurationSaveMode.Full)
' Map the new configuration file.
Dim configFileMap As New ExeConfigurationFileMap()
configFileMap.ExeConfigFilename = configFile
' Get the mapped configuration file
config = _
ConfigurationManager.OpenMappedExeConfiguration( _
configFileMap, ConfigurationUserLevel.None)
' Make changes to the new configuration file.
' This is to show that this file is the
' one that is used.
Dim sectionName As String = "consoleSection"
Dim customSection As ConsoleSection = _
DirectCast(config.GetSection(sectionName), _
ConsoleSection)
If customSection Is Nothing Then
customSection = New ConsoleSection()
config.Sections.Add(sectionName, customSection)
End If
' Change the section configuration values.
customSection = _
DirectCast(config.GetSection(sectionName), _
ConsoleSection)
customSection.ConsoleElement.BackgroundColor = _
ConsoleColor.Green
customSection.ConsoleElement.ForegroundColor = _
ConsoleColor.Red
' Save the configuration file.
config.Save(ConfigurationSaveMode.Modified)
' Force a reload of the changed section. This
' makes the new values available for reading.
ConfigurationManager.RefreshSection(sectionName)
' Set console properties using the
' configuration values contained in the
' new configuration file.
Console.BackgroundColor = _
customSection.ConsoleElement.BackgroundColor
Console.ForegroundColor = _
customSection.ConsoleElement.ForegroundColor
Console.Clear()
Console.WriteLine()
Console.WriteLine( _
"Using OpenMappedExeConfiguration.")
Console.WriteLine( _
"Configuration file is: {0}", config.FilePath)
End Sub
Remarks
The ConfigurationUserLevel object determines the location of the configuration file being opened. It indicates whether the file has no user level (the configuration file is in the same directory as the application) or has a per-user level (the configuration file is in an application settings path determined by userLevel
).
Note
To obtain the Configuration object for a resource, your code must have read permissions on all the configuration files from which it inherits settings. To update a configuration file, your code must additionally have write permissions for both the configuration file and the directory in which it exists.
See also
Applies to
OpenMappedExeConfiguration(ExeConfigurationFileMap, ConfigurationUserLevel, Boolean)
- Source:
- ConfigurationManager.cs
- Source:
- ConfigurationManager.cs
- Source:
- ConfigurationManager.cs
- Source:
- ConfigurationManager.cs
- Source:
- ConfigurationManager.cs
Opens the specified client configuration file as a Configuration object that uses the specified file mapping, user level, and preload option.
public:
static System::Configuration::Configuration ^ OpenMappedExeConfiguration(System::Configuration::ExeConfigurationFileMap ^ fileMap, System::Configuration::ConfigurationUserLevel userLevel, bool preLoad);
public static System.Configuration.Configuration OpenMappedExeConfiguration (System.Configuration.ExeConfigurationFileMap fileMap, System.Configuration.ConfigurationUserLevel userLevel, bool preLoad);
static member OpenMappedExeConfiguration : System.Configuration.ExeConfigurationFileMap * System.Configuration.ConfigurationUserLevel * bool -> System.Configuration.Configuration
Public Shared Function OpenMappedExeConfiguration (fileMap As ExeConfigurationFileMap, userLevel As ConfigurationUserLevel, preLoad As Boolean) As Configuration
Parameters
- fileMap
- ExeConfigurationFileMap
The configuration file to use instead of the default application configuration file.
- userLevel
- ConfigurationUserLevel
One of the enumeration values that specifies the user level for which you are opening the configuration.
- preLoad
- Boolean
true
to preload all section groups and sections; otherwise, false
.
Returns
The configuration object.
Exceptions
A configuration file could not be loaded.
Remarks
The ConfigurationUserLevel object determines the location of the configuration file that is being opened. It indicates whether the file has no user level (the configuration file is in the same directory as the application) or has a per-user level (the configuration file is in an application settings path that is determined by userLevel
).
Note
To obtain the Configuration object for a resource, your code must have read permissions on all the configuration files from which it inherits settings. To update a configuration file, your code must additionally have write permissions for both the configuration file and the directory in which it exists.
For a code example, see the OpenMappedExeConfiguration overload.