Configuration Classe
Definição
Importante
Algumas informações se referem a produtos de pré-lançamento que podem ser substancialmente modificados antes do lançamento. A Microsoft não oferece garantias, expressas ou implícitas, das informações aqui fornecidas.
Representa um arquivo de configuração aplicável a um determinado computador, aplicativo ou recurso. Essa classe não pode ser herdada.
public ref class Configuration sealedpublic sealed class Configurationtype Configuration = classPublic NotInheritable Class Configuration- Herança
-
Configuration
Exemplos
O exemplo de código a seguir demonstra como usar a Configuration classe para acessar elementos de arquivo de configuração.
using System;
using System.Collections.Generic;
using System.Text;
using System.Configuration;
using System.Globalization;
using System.ComponentModel;
using System.Collections.Specialized;
// Before compiling this application,
// remember to reference the System.Configuration assembly in your project.
#region CustomSection class
// Define a custom section. This class is used to
// populate the configuration file.
// It creates the following custom section:
// <CustomSection name="Contoso" url="http://www.contoso.com" port="8080" />.
public sealed class CustomSection : ConfigurationSection
{
public CustomSection()
{
}
[ConfigurationProperty("name",
DefaultValue = "Contoso",
IsRequired = true,
IsKey = true)]
public string Name
{
get
{
return (string)this["name"];
}
set
{
this["name"] = value;
}
}
[ConfigurationProperty("url",
DefaultValue = "http://www.contoso.com",
IsRequired = true)]
[RegexStringValidator(@"\w+:\/\/[\w.]+\S*")]
public string Url
{
get
{
return (string)this["url"];
}
set
{
this["url"] = value;
}
}
[ConfigurationProperty("port",
DefaultValue = (int)8080,
IsRequired = false)]
[IntegerValidator(MinValue = 0,
MaxValue = 8080, ExcludeRange = false)]
public int Port
{
get
{
return (int)this["port"];
}
set
{
this["port"] = value;
}
}
}
#endregion
#region Using Configuration Class
class UsingConfigurationClass
{
// Show how to create an instance of the Configuration class
// that represents this application configuration file.
static void CreateConfigurationFile()
{
try
{
// Create a custom configuration section.
CustomSection customSection = new CustomSection();
// Get the current configuration file.
System.Configuration.Configuration config =
ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None);
// Create the custom section entry
// in <configSections> group and the
// related target section in <configuration>.
if (config.Sections["CustomSection"] == null)
{
config.Sections.Add("CustomSection", customSection);
}
// Create and add an entry to appSettings section.
string conStringname="LocalSqlServer";
string conString = @"data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true";
string providerName="System.Data.SqlClient";
ConnectionStringSettings connStrSettings = new ConnectionStringSettings();
connStrSettings.Name = conStringname;
connStrSettings.ConnectionString= conString;
connStrSettings.ProviderName = providerName;
config.ConnectionStrings.ConnectionStrings.Add(connStrSettings);
// Add an entry to appSettings section.
int appStgCnt =
ConfigurationManager.AppSettings.Count;
string newKey = "NewKey" + appStgCnt.ToString();
string newValue = DateTime.Now.ToLongDateString() +
" " + DateTime.Now.ToLongTimeString();
config.AppSettings.Settings.Add(newKey, newValue);
// Save the configuration file.
customSection.SectionInformation.ForceSave = true;
config.Save(ConfigurationSaveMode.Full);
Console.WriteLine("Created configuration file: {0}",
config.FilePath);
}
catch (ConfigurationErrorsException err)
{
Console.WriteLine("CreateConfigurationFile: {0}", err.ToString());
}
}
// Show how to use the GetSection(string) method.
static void GetCustomSection()
{
try
{
CustomSection customSection;
// Get the current configuration file.
System.Configuration.Configuration config =
ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None) as Configuration;
customSection =
config.GetSection("CustomSection") as CustomSection;
Console.WriteLine("Section name: {0}", customSection.Name);
Console.WriteLine("Url: {0}", customSection.Url);
Console.WriteLine("Port: {0}", customSection.Port);
}
catch (ConfigurationErrorsException err)
{
Console.WriteLine("Using GetSection(string): {0}", err.ToString());
}
}
// Show how to use different modalities to save
// a configuration file.
static void SaveConfigurationFile()
{
try
{
// Get the current configuration file.
System.Configuration.Configuration config =
ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None) as Configuration;
// Save the full configuration file and force save even if the file was not modified.
config.SaveAs("MyConfigFull.config", ConfigurationSaveMode.Full, true);
Console.WriteLine("Saved config file as MyConfigFull.config using the mode: {0}",
ConfigurationSaveMode.Full.ToString());
config =
ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None) as Configuration;
// Save only the part of the configuration file that was modified.
config.SaveAs("MyConfigModified.config", ConfigurationSaveMode.Modified, true);
Console.WriteLine("Saved config file as MyConfigModified.config using the mode: {0}",
ConfigurationSaveMode.Modified.ToString());
config =
ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None) as Configuration;
// Save the full configuration file.
config.SaveAs("MyConfigMinimal.config");
Console.WriteLine("Saved config file as MyConfigMinimal.config using the mode: {0}",
ConfigurationSaveMode.Minimal.ToString());
}
catch (ConfigurationErrorsException err)
{
Console.WriteLine("SaveConfigurationFile: {0}", err.ToString());
}
}
// Show how use the AppSettings and ConnectionStrings
// properties.
static void GetSections(string section)
{
try
{
// Get the current configuration file.
System.Configuration.Configuration config =
ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None) as Configuration;
// Get the selected section.
switch (section)
{
case "appSettings":
try
{
AppSettingsSection appSettings =
config.AppSettings as AppSettingsSection;
Console.WriteLine("Section name: {0}",
appSettings.SectionInformation.SectionName);
// Get the AppSettings section elements.
Console.WriteLine();
Console.WriteLine("Using AppSettings property.");
Console.WriteLine("Application settings:");
// Get the KeyValueConfigurationCollection
// from the configuration.
KeyValueConfigurationCollection settings =
config.AppSettings.Settings;
// Display each KeyValueConfigurationElement.
foreach (KeyValueConfigurationElement keyValueElement in settings)
{
Console.WriteLine("Key: {0}", keyValueElement.Key);
Console.WriteLine("Value: {0}", keyValueElement.Value);
Console.WriteLine();
}
}
catch (ConfigurationErrorsException e)
{
Console.WriteLine("Using AppSettings property: {0}",
e.ToString());
}
break;
case "connectionStrings":
ConnectionStringsSection
conStrSection =
config.ConnectionStrings as ConnectionStringsSection;
Console.WriteLine("Section name: {0}",
conStrSection.SectionInformation.SectionName);
try
{
if (conStrSection.ConnectionStrings.Count != 0)
{
Console.WriteLine();
Console.WriteLine("Using ConnectionStrings property.");
Console.WriteLine("Connection strings:");
// Get the collection elements.
foreach (ConnectionStringSettings connection in
conStrSection.ConnectionStrings)
{
string name = connection.Name;
string provider = connection.ProviderName;
string connectionString = connection.ConnectionString;
Console.WriteLine("Name: {0}",
name);
Console.WriteLine("Connection string: {0}",
connectionString);
Console.WriteLine("Provider: {0}",
provider);
}
}
}
catch (ConfigurationErrorsException e)
{
Console.WriteLine("Using ConnectionStrings property: {0}",
e.ToString());
}
break;
default:
Console.WriteLine(
"GetSections: Unknown section (0)", section);
break;
}
}
catch (ConfigurationErrorsException err)
{
Console.WriteLine("GetSections: (0)", err.ToString());
}
}
// Show how to use the Configuration object properties
// to obtain configuration file information.
static void GetConfigurationInformation()
{
try
{
// Get the current configuration file.
System.Configuration.Configuration config =
ConfigurationManager.OpenExeConfiguration(
ConfigurationUserLevel.None) as Configuration;
Console.WriteLine("Reading configuration information:");
ContextInformation evalContext =
config.EvaluationContext as ContextInformation;
Console.WriteLine("Machine level: {0}",
evalContext.IsMachineLevel.ToString());
string filePath = config.FilePath;
Console.WriteLine("File path: {0}", filePath);
bool hasFile = config.HasFile;
Console.WriteLine("Has file: {0}", hasFile.ToString());
ConfigurationSectionGroupCollection
groups = config.SectionGroups;
Console.WriteLine("Groups: {0}", groups.Count.ToString());
foreach (ConfigurationSectionGroup group in groups)
{
Console.WriteLine("Group Name: {0}", group.Name);
// Console.WriteLine("Group Type: {0}", group.Type);
}
ConfigurationSectionCollection
sections = config.Sections;
Console.WriteLine("Sections: {0}", sections.Count.ToString());
}
catch (ConfigurationErrorsException err)
{
Console.WriteLine("GetConfigurationInformation: {0}",err.ToString());
}
}
#endregion
#region Application Main
//*** User Interaction Class ***//
// Obtain user's input and provide feedback.
// This class contains the application Main() function.
// It calls the ConfigurationManager methods based
// on the user's selection.
class ApplicationMain
{
// Display user's menu.
public static void UserMenu()
{
string applicationName =
Environment.GetCommandLineArgs()[0] + ".exe";
StringBuilder buffer = new StringBuilder();
buffer.AppendLine("Application: " + applicationName);
buffer.AppendLine("Make your selection.");
buffer.AppendLine("? -- Display help.");
buffer.AppendLine("Q,q -- Exit the application.");
buffer.Append("1 -- Instantiate the");
buffer.AppendLine(" Configuration class.");
buffer.Append("2 -- Use GetSection(string) to read ");
buffer.AppendLine(" a custom section.");
buffer.Append("3 -- Use SaveAs methods");
buffer.AppendLine(" to save the configuration file.");
buffer.Append("4 -- Use AppSettings property to read");
buffer.AppendLine(" the appSettings section.");
buffer.Append("5 -- Use ConnectionStrings property to read");
buffer.AppendLine(" the connectionStrings section.");
buffer.Append("6 -- Use Configuration class properties");
buffer.AppendLine(" to obtain configuration information.");
Console.Write(buffer.ToString());
}
// Obtain user's input and provide
// feedback.
static void Main(string[] args)
{
// Define user selection string.
string selection;
// Get the name of the application.
string appName =
Environment.GetCommandLineArgs()[0];
// Get user selection.
while (true)
{
UserMenu();
Console.Write("> ");
selection = Console.ReadLine();
if (!string.IsNullOrEmpty(selection))
break;
}
while (selection.ToLower() != "q")
{
// Process user's input.
switch (selection)
{
case "1":
// Show how to create an instance of the Configuration class.
CreateConfigurationFile();
break;
case "2":
// Show how to use GetSection(string) method.
GetCustomSection();
break;
case "3":
// Show how to use ConnectionStrings.
SaveConfigurationFile();
break;
case "4":
// Show how to use the AppSettings property.
GetSections("appSettings");
break;
case "5":
// Show how to use the ConnectionStrings property.
GetSections("connectionStrings");
break;
case "6":
// Show how to obtain configuration file information.
GetConfigurationInformation();
break;
default:
UserMenu();
break;
}
Console.Write("> ");
selection = Console.ReadLine();
}
}
}
#endregion
}
Imports System.Text
Imports System.Configuration
Imports System.Globalization
Imports System.ComponentModel
Imports System.Collections.Specialized
' Before compiling this application,
' remember to reference the System.Configuration assembly in your project.
#Region "CustomSection class"
' Define a custom section. This class is used to
' populate the configuration file.
' It creates the following custom section:
' <CustomSection name="Contoso" url="http://www.contoso.com" port="8080" />.
Public NotInheritable Class CustomSection
Inherits ConfigurationSection
Public Sub New()
End Sub
<ConfigurationProperty("name", DefaultValue:="Contoso", IsRequired:=True, IsKey:=True)> _
Public Property Name() As String
Get
Return CStr(Me("name"))
End Get
Set(ByVal value As String)
Me("name") = value
End Set
End Property
<ConfigurationProperty("url", DefaultValue:="http://www.contoso.com", IsRequired:=True), RegexStringValidator("\w+:\/\/[\w.]+\S*")> _
Public Property Url() As String
Get
Return CStr(Me("url"))
End Get
Set(ByVal value As String)
Me("url") = value
End Set
End Property
<ConfigurationProperty("port", DefaultValue:=CInt(8080), IsRequired:=False), IntegerValidator(MinValue:=0, MaxValue:=8080, ExcludeRange:=False)> _
Public Property Port() As Integer
Get
Return CInt(Fix(Me("port")))
End Get
Set(ByVal value As Integer)
Me("port") = value
End Set
End Property
End Class
#End Region
#Region "Using Configuration Class"
Friend Class UsingConfigurationClass
' Show how to create an instance of the Configuration class
' that represents this application configuration file.
Public Shared Sub CreateConfigurationFile()
Try
' Create a custom configuration section.
Dim customSection As New CustomSection()
' Get the current configuration file.
Dim config As System.Configuration.Configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None)
' Create the section entry
' in <configSections> and the
' related target section in <configuration>.
If config.Sections("CustomSection") Is Nothing Then
config.Sections.Add("CustomSection", customSection)
End If
' Create and add an entry to appSettings section.
Dim conStringname As String = "LocalSqlServer"
Dim conString As String = "data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true"
Dim providerName As String = "System.Data.SqlClient"
Dim connStrSettings As New ConnectionStringSettings()
connStrSettings.Name = conStringname
connStrSettings.ConnectionString = conString
connStrSettings.ProviderName = providerName
config.ConnectionStrings.ConnectionStrings.Add(connStrSettings)
' Add an entry to appSettings section.
Dim appStgCnt As Integer = ConfigurationManager.AppSettings.Count
Dim newKey As String = "NewKey" & appStgCnt.ToString()
Dim newValue As String = Date.Now.ToLongDateString() & " " & Date.Now.ToLongTimeString()
config.AppSettings.Settings.Add(newKey, newValue)
' Save the configuration file.
customSection.SectionInformation.ForceSave = True
config.Save(ConfigurationSaveMode.Full)
Console.WriteLine("Created configuration file: {0}", config.FilePath)
Catch err As ConfigurationErrorsException
Console.WriteLine("CreateConfigurationFile: {0}", err.ToString())
End Try
End Sub
' Show how to use the GetSection(string) method.
Public Shared Sub GetCustomSection()
Try
Dim customSection As CustomSection
' Get the current configuration file.
Dim config As System.Configuration.Configuration = TryCast(ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None), Configuration)
customSection = TryCast(config.GetSection("CustomSection"), CustomSection)
Console.WriteLine("Section name: {0}", customSection.Name)
Console.WriteLine("Url: {0}", customSection.Url)
Console.WriteLine("Port: {0}", customSection.Port)
Catch err As ConfigurationErrorsException
Console.WriteLine("Using GetSection(string): {0}", err.ToString())
End Try
End Sub
' Show how to use different modalities to save
' a configuration file.
Public Shared Sub SaveConfigurationFile()
Try
' Get the current configuration file.
Dim config As System.Configuration.Configuration = TryCast(ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None), Configuration)
' Save the full configuration file and force save even if the file was not modified.
config.SaveAs("MyConfigFull.config", ConfigurationSaveMode.Full, True)
Console.WriteLine("Saved config file as MyConfigFull.config using the mode: {0}", ConfigurationSaveMode.Full.ToString())
config = TryCast(ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None), Configuration)
' Save only the part of the configuration file that was modified.
config.SaveAs("MyConfigModified.config", ConfigurationSaveMode.Modified, True)
Console.WriteLine("Saved config file as MyConfigModified.config using the mode: {0}", ConfigurationSaveMode.Modified.ToString())
config = TryCast(ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None), Configuration)
' Save the full configuration file.
config.SaveAs("MyConfigMinimal.config")
Console.WriteLine("Saved config file as MyConfigMinimal.config using the mode: {0}", ConfigurationSaveMode.Minimal.ToString())
Catch err As ConfigurationErrorsException
Console.WriteLine("SaveConfigurationFile: {0}", err.ToString())
End Try
End Sub
' Show how use the AppSettings and ConnectionStrings
' properties.
Public Shared Sub GetSections(ByVal section As String)
Try
' Get the current configuration file.
Dim config As System.Configuration.Configuration = TryCast(ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None), Configuration)
' Get the selected section.
Select Case section
Case "appSettings"
Try
Dim appSettings As AppSettingsSection = TryCast(config.AppSettings, AppSettingsSection)
Console.WriteLine("Section name: {0}", appSettings.SectionInformation.SectionName)
' Get the AppSettings section elements.
Console.WriteLine()
Console.WriteLine("Using AppSettings property.")
Console.WriteLine("Application settings:")
' Get the KeyValueConfigurationCollection
' from the configuration.
Dim settings As KeyValueConfigurationCollection = config.AppSettings.Settings
' Display each KeyValueConfigurationElement.
For Each keyValueElement As KeyValueConfigurationElement In settings
Console.WriteLine("Key: {0}", keyValueElement.Key)
Console.WriteLine("Value: {0}", keyValueElement.Value)
Console.WriteLine()
Next keyValueElement
Catch e As ConfigurationErrorsException
Console.WriteLine("Using AppSettings property: {0}", e.ToString())
End Try
Case "connectionStrings"
Dim conStrSection As ConnectionStringsSection = TryCast(config.ConnectionStrings, ConnectionStringsSection)
Console.WriteLine("Section name: {0}", conStrSection.SectionInformation.SectionName)
Try
If conStrSection.ConnectionStrings.Count <> 0 Then
Console.WriteLine()
Console.WriteLine("Using ConnectionStrings property.")
Console.WriteLine("Connection strings:")
' Get the collection elements.
For Each connection As ConnectionStringSettings In conStrSection.ConnectionStrings
Dim name As String = connection.Name
Dim provider As String = connection.ProviderName
Dim connectionString As String = connection.ConnectionString
Console.WriteLine("Name: {0}", name)
Console.WriteLine("Connection string: {0}", connectionString)
Console.WriteLine("Provider: {0}", provider)
Next connection
End If
Catch e As ConfigurationErrorsException
Console.WriteLine("Using ConnectionStrings property: {0}", e.ToString())
End Try
Case Else
Console.WriteLine("GetSections: Unknown section (0)", section)
End Select
Catch err As ConfigurationErrorsException
Console.WriteLine("GetSections: (0)", err.ToString())
End Try
End Sub
' Show how to use the Configuration object properties
' to obtain configuration file information.
Public Shared Sub GetConfigurationInformation()
Try
' Get the current configuration file.
Dim config As System.Configuration.Configuration = TryCast(ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None), Configuration)
Console.WriteLine("Reading configuration information:")
Dim evalContext As ContextInformation = TryCast(config.EvaluationContext, ContextInformation)
Console.WriteLine("Machine level: {0}", evalContext.IsMachineLevel.ToString())
Dim filePath As String = config.FilePath
Console.WriteLine("File path: {0}", filePath)
Dim hasFile As Boolean = config.HasFile
Console.WriteLine("Has file: {0}", hasFile.ToString())
Dim groups As ConfigurationSectionGroupCollection = config.SectionGroups
Console.WriteLine("Groups: {0}", groups.Count.ToString())
For Each group As ConfigurationSectionGroup In groups
Console.WriteLine("Group Name: {0}", group.Name)
' Console.WriteLine("Group Type: {0}", group.Type);
Next group
Dim sections As ConfigurationSectionCollection = config.Sections
Console.WriteLine("Sections: {0}", sections.Count.ToString())
Catch err As ConfigurationErrorsException
Console.WriteLine("GetConfigurationInformation: {0}", err.ToString())
End Try
End Sub
End Class
#End Region
#Region "Application Main"
'*** User Interaction Class ***//
' Obtain user's input and provide feedback.
' This class contains the application Main() function.
' It calls the ConfigurationManager methods based
' on the user's selection.
Public Class ApplicationMain
' Display user's menu.
Public Shared Sub UserMenu()
Dim applicationName As String = Environment.GetCommandLineArgs()(0) & ".exe"
Dim buffer As New StringBuilder()
buffer.AppendLine("Application: " & applicationName)
buffer.AppendLine("Please, make your selection.")
buffer.AppendLine("? -- Display help.")
buffer.AppendLine("Q,q -- Exit the application.")
buffer.Append("1 -- Instantiate the")
buffer.AppendLine(" Configuration class.")
buffer.Append("2 -- Use GetSection(string) to read ")
buffer.AppendLine(" a custom section.")
buffer.Append("3 -- Use SaveAs methods")
buffer.AppendLine(" to save the configuration file.")
buffer.Append("4 -- Use AppSettings property to read")
buffer.AppendLine(" the appSettings section.")
buffer.Append("5 -- Use ConnectionStrings property to read")
buffer.AppendLine(" the connectionStrings section.")
buffer.Append("6 -- Use Configuration class properties")
buffer.AppendLine(" to obtain configuration information.")
Console.Write(buffer.ToString())
End Sub
' Obtain user's input and provide
' feedback.
Shared Sub Main(ByVal args() As String)
' Define user selection string.
Dim selection As String
' Get the name of the application.
Dim appName As String = Environment.GetCommandLineArgs()(0)
' Get user selection.
Do
UserMenu()
Console.Write("> ")
selection = Console.ReadLine()
If selection <> String.Empty Then
Exit Do
End If
Loop
Do While selection.ToLower() <> "q"
' Process user's input.
Select Case selection
Case "1"
' Show how to create an instance of the Configuration class.
UsingConfigurationClass.CreateConfigurationFile()
Case "2"
' Show how to use GetSection(string) method.
UsingConfigurationClass.GetCustomSection()
Case "3"
' Show how to use ConnectionStrings.
UsingConfigurationClass.SaveConfigurationFile()
Case "4"
' Show how to use the AppSettings property.
UsingConfigurationClass.GetSections("appSettings")
Case "5"
' Show how to use the ConnectionStrings property.
UsingConfigurationClass.GetSections("connectionStrings")
Case "6"
' Show how to obtain configuration file information.
UsingConfigurationClass.GetConfigurationInformation()
Case Else
UserMenu()
End Select
Console.Write("> ")
selection = Console.ReadLine()
Loop
End Sub
End Class
#End Region
Comentários
As configurações são armazenadas em uma hierarquia de arquivos de configuração. A Configuration instância de classe representa a exibição mesclada das configurações de todos os arquivos de configuração que se aplicam a uma entidade física específica, como um computador ou a uma entidade lógica, como um aplicativo ou um site da Web. A entidade lógica pode existir no computador local ou em um servidor remoto. Para obter informações sobre arquivos de configuração, consulte Configurando aplicativos e ASP.NET arquivos de configuração.
Quando nenhum arquivo de configuração existe para uma entidade especificada, o Configuration objeto representa as configurações padrão, conforme definido pelo arquivo Machine.config.
Você pode obter um Configuration objeto usando as seguintes classes:
A ConfigurationManager classe , se sua entidade for um aplicativo cliente.
A WebConfigurationManager classe , se sua entidade for um aplicativo Web.
Os nomes dos métodos que retornam um Configuration objeto começam com "Open".
Você também pode gerar um arquivo de configuração que representa as configurações em um Configuration objeto . Para tal, use um dos seguintes métodos:
Chame o Save método para criar um novo arquivo de configuração.
Chame o SaveAs método para gerar um novo arquivo de configuração em outro local.
Os nomes dos métodos que criam arquivos de configuração começam com "Salvar".
Observação
Para habilitar o acesso às configurações em um computador remoto, use a ferramenta de linha de comando Aspnet_regiis. Para obter mais informações sobre essa ferramenta, consulte ASP.NET Ferramenta de Registro do IIS (Aspnet_regiis.exe). Para obter informações sobre como criar e acessar configurações personalizadas diferentes das seções intrínsecas incluídas no .NET Framework, consulte ConfigurationSection.
Notas aos Herdeiros
A Configuration classe fornece acesso programático para editar arquivos de configuração. Você usa um dos métodos "Open" fornecidos pela WebConfigurationManager classe para aplicativos Web ou pela ConfigurationManager classe para aplicativos cliente. Esses métodos retornam um Configuration objeto , que, por sua vez, fornece os métodos e as propriedades que lidam com os arquivos de configuração subjacentes. Você pode acessar esses arquivos para ler ou gravar informações de configuração.
Você usa o GetSection(String) método ou o GetSectionGroup(String) método para ler informações de configuração. Observe que o usuário ou processo que lê deve ter as seguintes permissões:
Permissão de leitura no arquivo de configuração no nível da hierarquia de configuração atual.
Permissões de leitura em todos os arquivos de configuração pai.
Se o aplicativo precisar de acesso somente leitura à sua própria configuração, é recomendável que você use as GetSection sobrecargas de método para aplicativos Web. Para o aplicativo cliente, use o GetSection(String) método .
Esses métodos fornecem acesso aos valores de configuração armazenados em cache para o aplicativo atual, que tem melhor desempenho do que a Configuration classe .
Observação: se você usar um método estático GetSection que usa um parâmetro de caminho, o parâmetro path deverá se referir ao aplicativo no qual o código está em execução, caso contrário, o parâmetro será ignorado e as informações de configuração do aplicativo em execução no momento serão retornadas.
Você usa um dos Save métodos para gravar informações de configuração. Observe que o usuário ou processo que grava deve ter as seguintes permissões:
Permissão de gravação no arquivo de configuração e no diretório no nível da hierarquia de configuração atual.
Permissões de leitura em todos os arquivos de configuração.
Propriedades
| AppSettings |
Obtém a seção de configuração do objeto AppSettingsSection que se aplica a esse objeto Configuration. |
| AssemblyStringTransformer |
Especifica um delegado de função usado para transformar cadeias de caracteres de assembly em arquivos de configuração. |
| ConnectionStrings |
Obtém um objeto da seção de configuração ConnectionStringsSection que se aplica a esse objeto Configuration. |
| EvaluationContext |
Obtém o objeto ContextInformation para o objeto Configuration. |
| FilePath |
Obtém o caminho físico para o arquivo de configuração representado por este objeto Configuration. |
| HasFile |
Obtém um valor que indica se um arquivo existe para o recurso representado por esse objeto Configuration. |
| Locations |
Obtém os locais definidos dentro deste objeto Configuration. |
| NamespaceDeclared |
Obtém ou define um valor que indica se o arquivo de configuração tem um namespace de XML. |
| RootSectionGroup |
Obtém o ConfigurationSectionGroup raiz deste objeto Configuration. |
| SectionGroups |
Obtém uma coleção dos grupos de seção definidos por essa configuração. |
| Sections |
Obtém uma coleção das seções definidas por esse objeto Configuration. |
| TargetFramework |
Obtém ou define a versão de destino do .NET quando uma versão anterior à atual é o destino. |
| TypeStringTransformer |
Especifica um delegado de função usado para transformar cadeias de caracteres de tipo em arquivos de configuração. |
Métodos
| Equals(Object) |
Determina se o objeto especificado é igual ao objeto atual. (Herdado de Object) |
| GetHashCode() |
Serve como a função de hash padrão. (Herdado de Object) |
| GetSection(String) |
Retorna o objeto ConfigurationSection especificado. |
| GetSectionGroup(String) |
Obtém o objeto ConfigurationSectionGroup especificado. |
| GetType() |
Obtém o Type da instância atual. (Herdado de Object) |
| MemberwiseClone() |
Cria uma cópia superficial do Object atual. (Herdado de Object) |
| Save() |
Grava as definições de configuração contidas neste objeto Configuration no arquivo de configuração XML atual. |
| Save(ConfigurationSaveMode, Boolean) |
Grava as definições de configuração contidas neste objeto Configuration no arquivo de configuração XML atual. |
| Save(ConfigurationSaveMode) |
Grava as definições de configuração contidas neste objeto Configuration no arquivo de configuração XML atual. |
| SaveAs(String, ConfigurationSaveMode, Boolean) |
Grava as definições de configuração contidas neste objeto Configuration no arquivo de configuração XML especificado. |
| SaveAs(String, ConfigurationSaveMode) |
Grava as definições de configuração contidas neste objeto Configuration no arquivo de configuração XML especificado. |
| SaveAs(String) |
Grava as definições de configuração contidas neste objeto Configuration no arquivo de configuração XML especificado. |
| ToString() |
Retorna uma cadeia de caracteres que representa o objeto atual. (Herdado de Object) |
