TypeListConverter 类

定义

提供可用于在列表框中填充可用类型的类型转换器。Provides a type converter that can be used to populate a list box with available types.

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

注解

您必须将类型列表提供给此 abstract 类的构造函数。You must provide the list of types to the constructor of this abstract class.

有关类型转换器的详细信息,请参阅 TypeConverter 基类和如何:实现类型转换器For more information about type converters, see the TypeConverter base class and How to: Implement a Type Converter.

备注

永远不应创建 TypeListConverter的实例。You should never create an instance of a TypeListConverter. 请改为调用 TypeDescriptorGetConverter 方法。Instead, call the GetConverter method of TypeDescriptor. 有关详细信息,请参阅 TypeConverter 基类中的示例。For more information, see the examples in the TypeConverter base class.

实施者说明

TypeListConverter继承时,可以重写以下方法。When you inherit from TypeListConverter, you can override the following methods.

-若要支持自定义类型转换,请重写 CanConvertFrom(Type)CanConvertTo(Type)ConvertFrom(Object)ConvertTo(Object, Type) 方法。- To support custom type conversion, override the CanConvertFrom(Type), CanConvertTo(Type), ConvertFrom(Object), and ConvertTo(Object, Type) methods.

-若要转换必须重新创建对象以更改其值的类型,请重写 CreateInstance(IDictionary)GetCreateInstanceSupported() 方法。- To convert types that must re-create the object to change its value, override the CreateInstance(IDictionary) and GetCreateInstanceSupported() methods.

-若要转换支持属性的类型,请重写 GetProperties(Object)GetPropertiesSupported() 方法。- To convert types that support properties, override the GetProperties(Object) and GetPropertiesSupported() methods. 如果要转换的类不具有属性,并且您需要实现属性,则可以使用 TypeConverter.SimplePropertyDescriptor 类作为实现属性说明符的基础。If the class you are converting does not have properties, and you need to implement properties, you can use the TypeConverter.SimplePropertyDescriptor class as a base for implementing the property descriptors. TypeConverter.SimplePropertyDescriptor继承时,必须重写 GetValue(Object)SetValue(Object, Object) 方法。When you inherit from TypeConverter.SimplePropertyDescriptor, you must override the GetValue(Object) and SetValue(Object, Object) methods.

-若要转换支持标准值的类型,请重写 GetStandardValues()GetStandardValuesExclusive()GetStandardValuesSupported()IsValid(Object) 方法。- To convert types that support standard values, override the GetStandardValues(), GetStandardValuesExclusive(), GetStandardValuesSupported() and IsValid(Object) methods.

构造函数

TypeListConverter(Type[])

将类型数组用作可用的类型来初始化 TypeListConverter 类的新实例。Initializes a new instance of the TypeListConverter class using the type array as the available types.

方法

CanConvertFrom(ITypeDescriptorContext, Type)

获取一个值,该值指示此转换器是否可以使用给定上下文转换源对象的指定 TypeGets a value indicating whether this converter can convert the specified Type of the source object using the given context.

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)

获取一个值,该值指示此转换器能否使用上下文将对象转换为给定的目标类型。Gets a value indicating whether this converter can convert an object to the given destination type using the context.

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)

将指定对象转换为转换器的本机类型。Converts the specified object to the native type of the converter.

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)

将给定的值对象转换为指定的目标类型。Converts the given value object to the specified destination type.

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)

确定指定的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()

用作默认哈希函数。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)

获取此验证器设计用于的数据类型的标准值集合。Gets a collection of standard values for the data type this validator is designed for.

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)

获取一个值,该值指示从 GetStandardValues(ITypeDescriptorContext) 方法返回的标准值的列表是否为独占列表。Gets a value indicating whether the list of standard values returned from the GetStandardValues(ITypeDescriptorContext) method is an exclusive list.

GetStandardValuesSupported()

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

(继承自 TypeConverter)
GetStandardValuesSupported(ITypeDescriptorContext)

获取一个值,该值指示此对象是否支持可使用指定上下文从列表中选取的标准值集。Gets a value indicating whether this object supports a standard set of values that can be picked from a list using the specified context.

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()

返回一个表示当前对象的 string。Returns a string that represents the current object.

(继承自 Object)

适用于