ConfigurationConverterBase 类

定义

配置转换器类型的基类。The base class for the configuration converter types.

public ref class ConfigurationConverterBase abstract : System::ComponentModel::TypeConverter
public abstract class ConfigurationConverterBase : System.ComponentModel.TypeConverter
type ConfigurationConverterBase = class
    inherit TypeConverter
Public MustInherit Class ConfigurationConverterBase
Inherits TypeConverter
继承
ConfigurationConverterBase
派生

示例

下面的代码示例演示如何从 ConfigurationConverterBase 类派生,以创建自定义 TimeSpan 转换器类型。The following code examples show how to derive from the ConfigurationConverterBase class to create a custom TimeSpan converter type. 此外,这些示例演示如何在自定义节中使用此类型。Also, the examples show how to use this type in a custom section.

下面的代码示例演示如何从类创建自定义 TimeSpan 转换器类型 ConfigurationConverterBaseThe following code example shows how to create a custom TimeSpan converter type from the ConfigurationConverterBase class.

using System;
using System.Collections.Generic;
using System.Text;
using System.Configuration;
using System.Globalization;
using System.ComponentModel;

public sealed class CustomTimeSpanMinutesConverter :
    ConfigurationConverterBase
{
    internal bool ValidateType(object value, 
        Type expected)
    {
        bool result;

        if ((value != null) &&
            (value.GetType() != expected))
            result = false;
        else
            result = true;

        return result;
    }

    public override bool CanConvertTo(
        ITypeDescriptorContext ctx, Type type)
    {
        return (type == typeof(string));
    }

    public override bool CanConvertFrom(
        ITypeDescriptorContext ctx, Type type)
    {
        return (type == typeof(string));
    }

    public override object ConvertTo(
        ITypeDescriptorContext ctx, CultureInfo ci,
        object value, Type type)
    {
        ValidateType(value, typeof(TimeSpan));

        long data = (long)(((TimeSpan)value).TotalMinutes);

        return data.ToString(CultureInfo.InvariantCulture);
    }

    public override object ConvertFrom(
        ITypeDescriptorContext ctx, CultureInfo ci, object data)
    {

        long min = long.Parse((string)data,
            CultureInfo.InvariantCulture);

        return TimeSpan.FromMinutes((double)min);
    }
}
Imports System.Collections.Generic
Imports System.Text
Imports System.Configuration
Imports System.Globalization
Imports System.ComponentModel




NotInheritable Public Class CustomTimeSpanMinutesConverter
    Inherits ConfigurationConverterBase
    
    Friend Function ValidateType(ByVal value As Object, _
    ByVal expected As Type) As Boolean
        Dim result As Boolean

        If Not (value Is Nothing) _
        AndAlso value.ToString() <> expected.ToString() Then
            result = False
        Else
            result = True
        End If
        Return result

    End Function 'ValidateType
    
    
    Public Overrides Function CanConvertTo( _
    ByVal ctx As ITypeDescriptorContext, _
    ByVal type As Type) As Boolean
        Return (type.ToString() = GetType(String).ToString())

    End Function 'CanConvertTo
    
    Public Overrides Function CanConvertFrom( _
    ByVal ctx As ITypeDescriptorContext, _
    ByVal type As Type) As Boolean
        Return (type.ToString() = GetType(String).ToString())

    End Function 'CanConvertFrom
    
    Public Overrides Function ConvertTo( _
    ByVal ctx As ITypeDescriptorContext, _
    ByVal ci As CultureInfo, ByVal value As Object, _
    ByVal type As Type) As Object
        ValidateType(value, GetType(TimeSpan))

        Dim data As Long = _
        Fix(CType(value, TimeSpan).TotalMinutes)

        Return data.ToString(CultureInfo.InvariantCulture)

    End Function 'ConvertTo
    
    Public Overrides Function ConvertFrom( _
    ByVal ctx As ITypeDescriptorContext, _
    ByVal ci As CultureInfo, ByVal data As Object) As Object

        Dim min As Long = _
        Long.Parse(CStr(data), CultureInfo.InvariantCulture)

        Return TimeSpan.FromMinutes(System.Convert.ToDouble(min))

    End Function 'ConvertFrom

End Class

下面的代码示例演示如何定义使用上一个自定义转换器的自定义节 TimeSpanThe following code example shows how to define a custom section that uses the previous custom TimeSpan converter.


    // Define a custom section.
    public sealed class CustomSection :
        ConfigurationSection
    {

        public CustomSection() 
        {
        }

        [ConfigurationProperty("fileName", DefaultValue="   default.txt  ")]
        [TypeConverter(typeof(WhiteSpaceTrimStringConverter))]
        public String FileName
        {
            get
            {
                return (String)this["fileName"];
            }
            set
            {
                this["fileName"] = value;
            }
        }

        [ConfigurationProperty("maxIdleTime")]
        [TypeConverter(typeof(CustomizedTimeSpanMinutesConverter))]
        public TimeSpan MaxIdleTime
        {
            get
            {
                return (TimeSpan)this["maxIdleTime"];
            }
            set
            {
                this["maxIdleTime"] = value;
            }
        }

        [ConfigurationProperty("timeDelay", 
            DefaultValue = "infinite")]
        [TypeConverter(typeof(InfiniteTimeSpanConverter))]
        public TimeSpan TimeDelay
        {
            get
            {
                return (TimeSpan)this["timeDelay"];
            }
            set
            {
                this["timeDelay"] = value;
            }
        }

        [ConfigurationProperty("cdStr", 
            DefaultValue = "str0, str1",
           IsRequired = true)]

        [TypeConverter(typeof(
            CommaDelimitedStringCollectionConverter))]
        public StringCollection CdStr
        {
            get
            {
                return (StringCollection)this["cdStr"];
            }

            set
            {
                this["cdStr"] = value;
            }
        }


        public enum Permissions
        {
            FullControl         = 0,
            Modify              = 1,
            ReadExecute         = 2,
            Read                = 3,
            Write               = 4,
            SpecialPermissions  = 5
        }

        [ConfigurationProperty("permission", DefaultValue = Permissions.Read)]
        public Permissions Permission
        {
            get
            {
                return (Permissions)this["permission"];
            }

            set
            {
                this["permission"] = value;
            }
        }

        [ConfigurationProperty("maxUsers", DefaultValue="infinite")]
        [TypeConverter(typeof(InfiniteIntConverter))]
        public int MaxUsers
        {
            get
            {
                return (int)this["maxUsers"];
            }
            set
            {
                this["maxUsers"] = value;
            }
        }
    }
}
' Define a custom section.
NotInheritable Public Class CustomSection
    Inherits ConfigurationSection
    
    
    Public Sub New() 
    
    End Sub
    
    
    
    <ConfigurationProperty("fileName", _
    DefaultValue:="   default.txt  "), _
    TypeConverter(GetType(WhiteSpaceTrimStringConverter))> _
    Public Property FileName() As String
        Get
            Return CStr(Me("fileName"))
        End Get
        Set(ByVal value As String)
            Me("fileName") = value
        End Set
    End Property

    
    <ConfigurationProperty("maxIdleTime"), _
    TypeConverter(GetType(CustomizedTimeSpanMinutesConverter))> _
    Public Property MaxIdleTime() As TimeSpan
        Get
            Return CType(Me("maxIdleTime"), TimeSpan)
        End Get
        Set(ByVal value As TimeSpan)
            Me("maxIdleTime") = value
        End Set
    End Property
    
    <ConfigurationProperty("timeDelay", _
    DefaultValue:="infinite"), _
    TypeConverter(GetType(InfiniteTimeSpanConverter))> _
    Public Property TimeDelay() As TimeSpan
        Get
            Return CType(Me("timeDelay"), TimeSpan)
        End Get
        Set(ByVal value As TimeSpan)
            Me("timeDelay") = Value
        End Set
    End Property
    
    <ConfigurationProperty("cdStr", _
    DefaultValue:="str0, str1", _
    IsRequired:=True), _
    TypeConverter(GetType(CommaDelimitedStringCollectionConverter))> _
    Public Property CdStr() As StringCollection
        Get
            Return CType(Me("cdStr"), StringCollection)
        End Get

        Set(ByVal value As StringCollection)
            Me("cdStr") = value
        End Set
    End Property
    
    
    Public Enum Permissions
        FullControl = 0
        Modify = 1
        ReadExecute = 2
        Read = 3
        Write = 4
        SpecialPermissions = 5
    End Enum 'Permissions
    
    
    <ConfigurationProperty("permission", _
    DefaultValue:=Permissions.Read)> _
    Public Property Permission() As Permissions
        Get
            Return CType(Me("permission"), Permissions)
        End Get

        Set(ByVal value As Permissions)
            Me("permission") = Value
        End Set
    End Property
    
    
    <ConfigurationProperty("maxUsers", _
    DefaultValue:="infinite"), _
    TypeConverter(GetType(InfiniteIntConverter))> _
    Public Property MaxUsers() As Integer
        Get
            Return Fix(Me("maxUsers"))
        End Get
        Set(ByVal value As Integer)
            Me("maxUsers") = Value
        End Set
    End Property
End Class

下面的代码示例演示如何使用上一个自定义节来创建和修改配置文件。The following code example shows how to create and modify a configuration file using the previous custom section.

using System;
using System.Collections.Generic;
using System.Text;
using System.Configuration;
using System.Globalization;
using System.ComponentModel;

namespace Samples.AspNet
{

    // Define a custom section.
    public sealed class CustomSection :
        ConfigurationSection
    {

        public CustomSection()
        { }

        [ConfigurationProperty("fileName", DefaultValue = "default.txt",
            IsRequired = true, IsKey = false)]
        [StringValidator(InvalidCharacters = " ~!@#$%^&*()[]{}/;'\"|\\",
            MinLength = 1, MaxLength = 60)]
        public string FileName
        {
            get
            {
                return (string)this["fileName"];
            }
            set
            {
                this["fileName"] = value;
            }
        }

        [ConfigurationProperty("maxIdleTime")]
        [TypeConverter(typeof(TsMinutesConverter))]
        public TimeSpan MaxIdleTime
        {
            get
            {
                return (TimeSpan)this["maxIdleTime"];
            }
            set
            {
                this["maxIdleTime"] = value;
            }
        }
    }

    public sealed class TsMinutesConverter :
        ConfigurationConverterBase
    {
        internal bool ValidateType(object value, Type expected)
        {
            bool result;

            if ((value != null) &&
                (value.GetType() != expected))
                result = false;
            else
                result = true;

            return result;
        }

        public override bool CanConvertTo(
            ITypeDescriptorContext ctx, Type type)
        {
            return (type == typeof(string));
        }

        public override bool CanConvertFrom(
            ITypeDescriptorContext ctx, Type type)
        {
            return (type == typeof(string));
        }

        public override object ConvertTo(
            ITypeDescriptorContext ctx, CultureInfo ci,
            object value, Type type)
        {
            ValidateType(value, typeof(TimeSpan));

            long data = (long)(((TimeSpan)value).TotalMinutes);

            return data.ToString(CultureInfo.InvariantCulture);
        }

        public override object ConvertFrom(
            ITypeDescriptorContext ctx, CultureInfo ci, object data)
        {

            long min = long.Parse((string)data,
                CultureInfo.InvariantCulture);

            return TimeSpan.FromMinutes((double)min);
        }
    }

    class UsingConfigutationConverterBase
    {

        // Create a custom section.
        static void CreateSection()
        {
            try
            {

                CustomSection customSection;

                // Get the current configuration file.
                System.Configuration.Configuration config =
                        ConfigurationManager.OpenExeConfiguration(
                        ConfigurationUserLevel.None);

                // Create the section entry  
                // in the <configSections> and the 
                // related target section in <configuration>.
                if (config.Sections["CustomSection"] == null)
                {
                    customSection = new CustomSection();
                    config.Sections.Add("CustomSection", customSection);
                    customSection.SectionInformation.ForceSave = true;
                    config.Save(ConfigurationSaveMode.Full);
                }
            }
            catch (ConfigurationErrorsException err)
            {
                Console.WriteLine(err.ToString());
            }
        }

        // Change custom section and write it to disk.
        static void SerializeCustomSection()
        {
            try
            {
                System.Configuration.Configuration config =
                    ConfigurationManager.OpenExeConfiguration(
                    ConfigurationUserLevel.None);

                CustomSection customSection =
                    config.Sections.Get("CustomSection")
                    as CustomSection;

                TimeSpan ts =
                    new TimeSpan(1, 30, 30);

                customSection.MaxIdleTime = ts;

                config.Save();

                string maxIdleTime =
                    customSection.MaxIdleTime.ToString();

                Console.WriteLine("New max idle time: {0}",
                    maxIdleTime);
            }
            catch (Exception e)
            {
                Console.WriteLine(e.ToString());
            }
        }

        // Read custom section from disk.
        static void DeserializeCustomSection()
        {

            try
            {
                System.Configuration.Configuration config =
                    ConfigurationManager.OpenExeConfiguration(
                    ConfigurationUserLevel.None);

                CustomSection customSection =
                    config.Sections.Get("CustomSection")
                    as CustomSection;

                TimeSpan maxIdleTime =
                    customSection.MaxIdleTime;

                Console.WriteLine("Max idle time: {0}",
                    maxIdleTime.ToString());
            }
            catch (Exception e)
            {
                Console.WriteLine(e.ToString());
            }
        }

        static void Main(string[] args)
        {
            CreateSection();
            SerializeCustomSection();
            DeserializeCustomSection();
        }
    }
}
Imports System.Collections.Generic
Imports System.Text
Imports System.Configuration
Imports System.Globalization
Imports System.ComponentModel



' Define a custom section.

NotInheritable Public Class CustomSection
   Inherits ConfigurationSection
   
   
   Public Sub New()
   End Sub
   
   
    <ConfigurationProperty("fileName", _
    DefaultValue:="default.txt", _
    IsRequired:=True, IsKey:=False), _
    StringValidator(InvalidCharacters:=" ~!@#$%^&*()[]{}/;'""|\", _
    MinLength:=1, MaxLength:=60)> _
    Public Property FileName() As String
        Get
            Return CStr(Me("fileName"))
        End Get
        Set(ByVal value As String)
            Me("fileName") = value
        End Set
    End Property
   
   
   
    <ConfigurationProperty("maxIdleTime"), _
    TypeConverter(GetType(TsMinutesConverter))> _
    Public Property MaxIdleTime() As TimeSpan
        Get
            Return CType(Me("maxIdleTime"), TimeSpan)
        End Get
        Set(ByVal value As TimeSpan)
            Me("maxIdleTime") = Value
        End Set
    End Property

End Class


NotInheritable Public Class TsMinutesConverter
   Inherits ConfigurationConverterBase
   
   Friend Function ValidateType(value As Object, expected As Type) As Boolean
      Dim result As Boolean
      
        If Not (value Is Nothing) _
        AndAlso (value.GetType().Equals(expected) <> True) Then
            result = False
        Else
            result = True
        End If
      Return result
   End Function 'ValidateType
   
   
    Public Overrides Function CanConvertTo( _
    ByVal ctx As ITypeDescriptorContext, _
    ByVal type As Type) As Boolean

        Return type.Equals(GetType(String))

    End Function 'CanConvertTo
   

    Public Overrides Function CanConvertFrom( _
    ByVal ctx As ITypeDescriptorContext, _
    ByVal type As Type) As Boolean

        Return type.Equals(GetType(String))

    End Function 'CanConvertFrom
   

    Public Overrides Function ConvertTo( _
    ByVal ctx As ITypeDescriptorContext, ByVal ci As CultureInfo, _
    ByVal value As Object, ByVal type As Type) As Object
        ValidateType(value, GetType(TimeSpan))

        Dim data As Long = _
        Fix(CType(value, TimeSpan).TotalMinutes)

        Return data.ToString(CultureInfo.InvariantCulture)

    End Function 'ConvertTo
   
   
    Public Overrides Function ConvertFrom( _
    ByVal ctx As ITypeDescriptorContext, ByVal ci As CultureInfo, _
    ByVal data As Object) As Object

        Dim min As Long = _
        Long.Parse(CStr(data), _
        CultureInfo.InvariantCulture)

        Return TimeSpan.FromMinutes( _
        System.Convert.ToDouble(min))

    End Function 'ConvertFrom
End Class

Class UsingConfigutationConverterBase
   
   
   ' Create a custom section.
   Shared Sub CreateSection()
      Try
         
         Dim customSection As CustomSection
         
         ' Get the current configuration file.
            Dim config _
            As System.Configuration.Configuration = _
            ConfigurationManager.OpenExeConfiguration( _
            ConfigurationUserLevel.None)
         
         ' Create the section entry  
         ' in the <configSections> and the 
         ' related target section in <configuration>.
         If config.Sections("CustomSection") Is Nothing Then
            customSection = New CustomSection()
            config.Sections.Add("CustomSection", customSection)
            customSection.SectionInformation.ForceSave = True
            config.Save(ConfigurationSaveMode.Full)
         End If
      Catch err As ConfigurationErrorsException
         Console.WriteLine(err.ToString())
      End Try
   End Sub
    
   
   
   ' Change custom section and write it to disk.
   Shared Sub SerializeCustomSection()
      Try
            Dim config _
               As System.Configuration.Configuration = _
               ConfigurationManager.OpenExeConfiguration( _
               ConfigurationUserLevel.None)

            Dim customSection _
            As CustomSection = _
            config.Sections.Get("CustomSection")
         Dim ts As New TimeSpan(1, 30, 30)
         
         customSection.MaxIdleTime = ts
         
         config.Save()
         
            Dim maxIdleTime As String = _
            customSection.MaxIdleTime.ToString()
         
            Console.WriteLine( _
            "New max idle time: {0}", maxIdleTime)
      Catch e As Exception
         Console.WriteLine(e.ToString())
      End Try
   End Sub
    
   
   ' Read custom section from disk.
   Shared Sub DeserializeCustomSection()
      
      Try
            Dim config _
            As System.Configuration.Configuration = _
            ConfigurationManager.OpenExeConfiguration( _
            ConfigurationUserLevel.None)
         
            Dim customSection _
            As CustomSection = _
            config.Sections.Get("CustomSection")
         
            Dim maxIdleTime As TimeSpan = _
            customSection.MaxIdleTime
         
         
            Console.WriteLine( _
            "Max idle time: {0}", maxIdleTime.ToString())
      Catch e As Exception
         Console.WriteLine(e.ToString())
      End Try
   End Sub
   

    Public Overloads Shared Sub Main(ByVal args() As String)
        CreateSection()
        SerializeCustomSection()
        DeserializeCustomSection()
    End Sub
End Class

下面是前面的示例使用的配置摘录。The following is a configuration excerpt as used by the previous example.

<?xml version="1.0" encoding="utf-8"?>  
<configuration>  
  <configSections>  
    <section name="CustomSection"   
      type="Samples.AspNet.CustomSection,   
      ConfigurationConverters,   
      Version=1.0.0.0, Culture=neutral,   
      PublicKeyToken=null"   
      allowDefinition="Everywhere"   
      allowExeDefinition="MachineToApplication"   
      restartOnExternalChanges="true" />  
  </configSections>  
  <CustomSection fileName="default.txt" maxIdleTime="90" />  
</configuration>  

注解

ConfigurationConverterBase是转换器配置类型的基类。The ConfigurationConverterBase is the base class for the converter configuration types. 这些类型将在配置文件中找到的字符串转换为相关的强类型属性。These are types that convert strings, found in the configuration file, to and from the related strongly typed properties.

构造函数

ConfigurationConverterBase()

初始化 ConfigurationConverterBase 类的新实例。Initializes a new instance of the ConfigurationConverterBase class.

方法

CanConvertFrom(ITypeDescriptorContext, Type)

确定是否允许此转换。Determines whether the conversion is allowed.

CanConvertFrom(Type)

返回该转换器是否可以将给定类型的对象转换为此转换器的类型。Returns whether this converter can convert an object of the given type to the type of this converter.

(继承自 TypeConverter)
CanConvertTo(ITypeDescriptorContext, Type)

确定是否允许此转换。Determines whether the conversion is allowed.

CanConvertTo(Type)

返回此转换器是否可将该对象转换为指定的类型。Returns whether this converter can convert the object to the specified type.

(继承自 TypeConverter)
ConvertFrom(ITypeDescriptorContext, CultureInfo, Object)

使用指定的上下文和区域性信息将给定对象转换为此转换器的类型。Converts the given object to the type of this converter, using the specified context and culture information.

(继承自 TypeConverter)
ConvertFrom(Object)

将给定值转换为此转换器的类型。Converts the given value to the type of this converter.

(继承自 TypeConverter)
ConvertFromInvariantString(ITypeDescriptorContext, String)

使用不变区域性和指定上下文将给定字符串转换为此转换器的类型。Converts the given string to the type of this converter, using the invariant culture and the specified context.

(继承自 TypeConverter)
ConvertFromInvariantString(String)

使用不变区域性将给定字符串转换为此转换器的类型。Converts the given string to the type of this converter, using the invariant culture.

(继承自 TypeConverter)
ConvertFromString(ITypeDescriptorContext, CultureInfo, String)

使用指定的上下文和区域性信息将给定的文本转换为对象。Converts the given text to an object, using the specified context and culture information.

(继承自 TypeConverter)
ConvertFromString(ITypeDescriptorContext, String)

使用指定的上下文将给定的文本转换为对象。Converts the given text to an object, using the specified context.

(继承自 TypeConverter)
ConvertFromString(String)

将指定文本转换为对象。Converts the specified text to an object.

(继承自 TypeConverter)
ConvertTo(ITypeDescriptorContext, CultureInfo, Object, Type)

使用指定的上下文和区域性信息将给定值对象转换为指定的类型。Converts the given value object to the specified type, using the specified context and culture information.

(继承自 TypeConverter)
ConvertTo(Object, Type)

使用参数将给定的值对象转换为指定的类型。Converts the given value object to the specified type, using the arguments.

(继承自 TypeConverter)
ConvertToInvariantString(ITypeDescriptorContext, Object)

使用指定的上下文将指定的值转换为区域性不变的字符串表示形式。Converts the specified value to a culture-invariant string representation, using the specified context.

(继承自 TypeConverter)
ConvertToInvariantString(Object)

将指定值转换为区域性不变的字符串表示形式。Converts the specified value to a culture-invariant string representation.

(继承自 TypeConverter)
ConvertToString(ITypeDescriptorContext, CultureInfo, Object)

使用指定的上下文和区域性信息将给定的值转换为字符串表示形式。Converts the given value to a string representation, using the specified context and culture information.

(继承自 TypeConverter)
ConvertToString(ITypeDescriptorContext, Object)

使用给定的上下文将给定的值转换为字符串表示形式。Converts the given value to a string representation, using the given context.

(继承自 TypeConverter)
ConvertToString(Object)

将指定值转换为字符串表示形式。Converts the specified value to a string representation.

(继承自 TypeConverter)
CreateInstance(IDictionary)

在给定 Object 的一组属性值的情况下重新创建该对象。Re-creates an Object given a set of property values for the object.

(继承自 TypeConverter)
CreateInstance(ITypeDescriptorContext, IDictionary)

给定该对象的一组属性值,使用指定上下文创建与此 TypeConverter 相关联的类型的实例。Creates an instance of the type that this TypeConverter is associated with, using the specified context, given a set of property values for the object.

(继承自 TypeConverter)
Equals(Object)

确定指定对象是否等于当前对象。Determines whether the specified object is equal to the current object.

(继承自 Object)
GetConvertFromException(Object)

返回当转换无法执行时所引发的异常。Returns an exception to throw when a conversion cannot be performed.

(继承自 TypeConverter)
GetConvertToException(Object, Type)

返回当转换无法执行时所引发的异常。Returns an exception to throw when a conversion cannot be performed.

(继承自 TypeConverter)
GetCreateInstanceSupported()

返回更改此对象的值是否求调用 CreateInstance(IDictionary) 方法来创建新值。Returns whether changing a value on this object requires a call to the CreateInstance(IDictionary) method to create a new value.

(继承自 TypeConverter)
GetCreateInstanceSupported(ITypeDescriptorContext)

返回一个结果,即更改此对象上的某个值是否需要调用 CreateInstance(IDictionary) 以使用指定的上下文创建新值。Returns whether changing a value on this object requires a call to CreateInstance(IDictionary) to create a new value, using the specified context.

(继承自 TypeConverter)
GetHashCode()

作为默认哈希函数。Serves as the default hash function.

(继承自 Object)
GetProperties(ITypeDescriptorContext, Object)

使用指定的上下文返回值参数指定的数组类型的属性的集合。Returns a collection of properties for the type of array specified by the value parameter, using the specified context.

(继承自 TypeConverter)
GetProperties(ITypeDescriptorContext, Object, Attribute[])

使用指定的上下文和特性返回由该值参数指定的数组类型的属性集合。Returns a collection of properties for the type of array specified by the value parameter, using the specified context and attributes.

(继承自 TypeConverter)
GetProperties(Object)

返回由值参数指定的数组类型的属性集合。Returns a collection of properties for the type of array specified by the value parameter.

(继承自 TypeConverter)
GetPropertiesSupported()

返回此对象是否支持属性。Returns whether this object supports properties.

(继承自 TypeConverter)
GetPropertiesSupported(ITypeDescriptorContext)

通过使用指定的上下文,返回此对象是否支持属性。Returns whether this object supports properties, using the specified context.

(继承自 TypeConverter)
GetStandardValues()

从默认的上下文返回此类型转换器设计用于的数据类型的标准值集合。Returns a collection of standard values from the default context for the data type this type converter is designed for.

(继承自 TypeConverter)
GetStandardValues(ITypeDescriptorContext)

当与格式上下文一起提供时,返回此类型转换器设计用于的数据类型的标准值集合。Returns a collection of standard values for the data type this type converter is designed for when provided with a format context.

(继承自 TypeConverter)
GetStandardValuesExclusive()

返回从 GetStandardValues() 返回的标准值的集合是否为独占列表。Returns whether the collection of standard values returned from GetStandardValues() is an exclusive list.

(继承自 TypeConverter)
GetStandardValuesExclusive(ITypeDescriptorContext)

使用指定的上下文返回从 GetStandardValues() 返回的标准值的集合是否为可能值的独占列表。Returns whether the collection of standard values returned from GetStandardValues() is an exclusive list of possible values, using the specified context.

(继承自 TypeConverter)
GetStandardValuesSupported()

返回此对象是否支持可以从列表中选取的标准值集。Returns whether this object supports a standard set of values that can be picked from a list.

(继承自 TypeConverter)
GetStandardValuesSupported(ITypeDescriptorContext)

使用指定的上下文返回此对象是否支持可以从列表中选取的标准值集。Returns whether this object supports a standard set of values that can be picked from a list, using the specified context.

(继承自 TypeConverter)
GetType()

获取当前实例的 TypeGets the Type of the current instance.

(继承自 Object)
IsValid(ITypeDescriptorContext, Object)

返回给定的值对象是否对此类型和对指定的上下文有效。Returns whether the given value object is valid for this type and for the specified context.

(继承自 TypeConverter)
IsValid(Object)

返回给定值对象对于此类型是否有效。Returns whether the given value object is valid for this type.

(继承自 TypeConverter)
MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(继承自 Object)
SortProperties(PropertyDescriptorCollection, String[])

对属性的集合进行排序。Sorts a collection of properties.

(继承自 TypeConverter)
ToString()

返回表示当前对象的字符串。Returns a string that represents the current object.

(继承自 Object)

适用于

另请参阅