WebPartsSection Classe

Definição

public ref class WebPartsSection sealed : System::Configuration::ConfigurationSection

public sealed class WebPartsSection : System.Configuration.ConfigurationSection

type WebPartsSection = class
    inherit ConfigurationSection

Public NotInheritable Class WebPartsSection
Inherits ConfigurationSection

Herança

Object

ConfigurationElement

ConfigurationSection

WebPartsSection

Exemplos

Este exemplo demonstra como especificar valores declarativamente para vários atributos da webParts secção, que também podem ser acedidos como membros da WebPartsSection classe.

O exemplo seguinte do ficheiro de configuração mostra como especificar valores declarativamente para a webParts secção.

<system.web>
  <webParts>
    <personalization
      defaultProvider=" AspNetSqlPersonalizationProvider ">
        <!-- Providers may only be defined at the
            application level -->
      <providers>
        <add name="AspNetSqlPersonalizationProvider"
type="System.Web.UI.WebControls.WebParts.SqlPersonalizationProvider"
        connectionStringName="LocalSqlServer"
        applicationName="/" />
      </providers>
      <authorization>
        <deny users="*" verbs="enterSharedScope" />
        <allow users="Admin" verbs="modifyState" />
      </authorization>
    </personalization>
    <transformers>
      <add name="RowToFieldTransformer"
        type="System.Web.UI.WebControls.WebParts.RowToFieldTransformer" />
      <add name="RowToFilterTransformer"
        type="System.Web.UI.WebControls.WebParts.RowToFilterTransformer" />
      <add name="RowToParametersTransformer"
type="System.Web.UI.WebControls.WebParts.RowToParametersTransformer" />
    </transformers>
  </webParts>
</system.web>

O exemplo de código seguinte demonstra como usar a WebPartsSection classe.

using System;
using System.Collections;
using System.Collections.Specialized;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
using System.Configuration;
using System.Configuration.Provider;
using System.Web.Configuration;

namespace Samples.Aspnet.SystemWebConfiguration
{
    // Accesses the System.Web.Configuration.WebPartsSection
    // members selected by the user.
    class UsingWebPartsSection
    {
        public static void Main()
        {
            // Process the System.Web.Configuration.WebPartsSectionobject.
            try
            {
                // Get the Web application configuration.
                Configuration configuration = 
                    WebConfigurationManager.OpenWebConfiguration("/aspnet");

                // Get the section.
                WebPartsSection webPartsSection = (WebPartsSection) 
                    configuration.Sections["system.web/webParts"];
// Add a Transfomer Info Object to the collection using a constructor.
webPartsSection.Transformers.Add(new TransformerInfo(
    "RowToFilterTransformer",
    "MyCustomTransformers.RowToFilterTransformer"));

// Show all TransformerInfo objects in the collection.
for (int ti = 0;
    ti < webPartsSection.Personalization.Providers.Count; ti++)
{
    Console.WriteLine("  #{0} Name={1} Type={2}", ti,
        webPartsSection.Transformers[ti].Name,
        webPartsSection.Transformers[ti].Type);
}

// Remove a TransformerInfo object by name.
webPartsSection.Transformers.Remove("RowToFilterTransformer");

// Remove a TransformerInfo object by index.
webPartsSection.Transformers.RemoveAt(0);

// Clear all TransformerInfo objects from the collection.
webPartsSection.Transformers.Clear();

// Get the current DefaultProvider property value.
Console.WriteLine(
    "Current DefaultProvider value: '{0}'",
    webPartsSection.Personalization.DefaultProvider);

// Set the DefaultProvider property.
webPartsSection.Personalization.DefaultProvider = 
    "ASPNetSQLPersonalizationProvider";
// Add a provider.
webPartsSection.Personalization.Providers.Add(
    new ProviderSettings("CustomProvider", 
    "MyCustomProviders.Provider"));

// List current providers.
for (int pi = 0; 
    pi < webPartsSection.Personalization.Providers.Count; pi++)
{
    Console.WriteLine("  #{0} Name={1} Type={2}", pi,
        webPartsSection.Personalization.Providers[pi].Name,
        webPartsSection.Personalization.Providers[pi].Type);
}

// Add an authorization.
AuthorizationRule ar = 
    new AuthorizationRule(AuthorizationRuleAction.Allow);
ar.Verbs.Add("ModifyState");
ar.Users.Add("Admin");
webPartsSection.Personalization.Authorization.Rules.Add(ar);

// List current authorizations.
for (int ai = 0;
    ai < webPartsSection.Personalization.Authorization.Rules.Count; 
    ai++)
{
    Console.WriteLine("  #{0}:", ai);
    AuthorizationRule aRule = 
        webPartsSection.Personalization.Authorization.Rules[ai];
    Console.WriteLine("  Verbs=");
    foreach (string verb in aRule.Verbs)
        Console.WriteLine("    * {0}", verb);
    Console.WriteLine("  Roles=");
    foreach (string role in aRule.Roles)
        Console.WriteLine("    * {0}", role);
    Console.WriteLine("  Users=");
    foreach (string user in aRule.Users)
        Console.WriteLine("    * {0}", user);
}


                // Update if not locked.
                if (!webPartsSection.IsReadOnly())
                {
                    configuration.Save();
                    Console.WriteLine("** Configuration updated.");
                }
                else
                {
                    Console.WriteLine("** Could not update, section is locked.");
                }
            }
            catch (System.ArgumentException e)
            {
                // Unknown error.
                Console.WriteLine(
                    "A invalid argument exception detected in UsingWebPartsSection Main. Check your");
                Console.WriteLine("command line for errors.");
            }
        }
    } // UsingWebPartsSection class end.
} // Samples.Aspnet.SystemWebConfiguration namespace end.

Imports System.Collections
Imports System.Collections.Specialized
Imports System.IO
Imports System.Text
Imports System.Text.RegularExpressions
Imports System.Configuration
Imports System.Web.Configuration

Namespace Samples.Aspnet.SystemWebConfiguration
  ' Accesses the System.Web.Configuration.WebPartsSection
  ' members selected by the user.
  Class UsingWebPartsSection
    Public Shared Sub Main()
      ' Process the System.Web.Configuration.WebPartsSectionobject.
      Try
        ' Get the Web application configuration.
                Dim configuration As System.Configuration.Configuration = _
        WebConfigurationManager.OpenWebConfiguration("/aspnet")

        ' Get the section.
        Dim webPartsSection As WebPartsSection = _
         CType(configuration.Sections("system.web/webParts"), _
         WebPartsSection)

' Add a Transfomer Info Object to the collection using a constructor.
webPartsSection.Transformers.Add(New TransformerInfo( _
  "RowToFilterTransformer", _
  "MyCustomTransformers.RowToFilterTransformer"))

' Show all TransformerInfo objects in the collection.
Dim ti As Integer
For ti = 0 To webPartsSection.Personalization.Providers.Count - 1
  Console.WriteLine("  #{0} Name={1} Type={2}", ti, _
    webPartsSection.Transformers(ti).Name, _
    webPartsSection.Transformers(ti).Type)
Next

' Remove a TransformerInfo object by name.
webPartsSection.Transformers.Remove("RowToFilterTransformer")

' Remove a TransformerInfo object by index.
webPartsSection.Transformers.RemoveAt(0)

' Clear all TransformerInfo objects from the collection.
webPartsSection.Transformers.Clear()

' Get the current DefaultProvider property value.
Console.WriteLine( _
  "Current DefaultProvider value: '{0}'", _
  webPartsSection.Personalization.DefaultProvider)

' Set the DefaultProvider property.
webPartsSection.Personalization.DefaultProvider = _
  "ASPNetSQLPersonalizationProvider"
' Add a provider.
webPartsSection.Personalization.Providers.Add( _
  New ProviderSettings("CustomProvider", _
  "MyCustomProviders.Provider"))

' List current providers.
Dim pi As Integer
For pi = 0 To webPartsSection.Personalization.Providers.Count - 1
  Console.WriteLine("  #{0} Name={1} Type={2}", pi, _
    webPartsSection.Personalization.Providers(pi).Name, _
    webPartsSection.Personalization.Providers(pi).Type)
Next

' Add an authorization.
Dim ar As AuthorizationRule = _
  New AuthorizationRule(AuthorizationRuleAction.Allow)
ar.Verbs.Add("ModifyState")
ar.Users.Add("Admin")
webPartsSection.Personalization.Authorization.Rules.Add(ar)

' List current authorizations.
Dim ai As Integer
For ai = 0 To _
  webPartsSection.Personalization.Authorization.Rules.Count
    Console.WriteLine("  #{0}:", ai)
    Dim aRule As AuthorizationRule = _
      webPartsSection.Personalization.Authorization.Rules(ai)
    Console.WriteLine("  Verbs=")
    Dim verb As String
    For Each verb In aRule.Verbs
      Console.WriteLine("    * {0}", verb)
      Console.WriteLine("  Roles=")
    Next
    Dim role As String
    For Each role In aRule.Roles
      Console.WriteLine("    * {0}", role)
      Console.WriteLine("  Users=")
    Next
    Dim user As String
    For Each user In aRule.Users
      Console.WriteLine("    * {0}", user)
    Next
Next

                ' Update if not locked.
                If Not webPartsSection.IsReadOnly() Then
                    configuration.Save()
                    Console.WriteLine("** Configuration updated.")
                Else
                    Console.WriteLine("** Could not update, section is locked.")
                End If
            Catch e As System.ArgumentException
        ' Unknown error.
        Console.WriteLine( _
          "A invalid argument exception detected in UsingWebPartsSection Main. Check your")
        Console.WriteLine("command line for errors.")
      End Try
    End Sub
  End Class
End Namespace ' Samples.Aspnet.SystemWebConfiguration

Observações

A webParts secção do ficheiro de configuração permite-lhe especificar um fornecedor de personalização de Web Parts, definir autorizações de personalização e adicionar classes personalizadas que estendam a WebPartTransformer classe para uso por ligações Web Parts.

Ver também

• WebPartTransformer
• ConfigurationSection
• ASP.NET Controlos de Web Parts
• Visão Geral das Conexões de Web Parts
• Visão Geral da Personalização de Web Parts