Редагувати

Поділитися через

TypeConverter.CanConvertFrom Method

  • Reference

Definition

Namespace:
System.ComponentModel
Assembly:
System.ComponentModel.TypeConverter.dll
Assembly:
System.dll
Assembly:
netstandard.dll

Returns whether this converter can convert an object of one type to the type of this converter.

Overloads

CanConvertFrom(Type)

Returns whether this converter can convert an object of the given type to the type of this converter.
CanConvertFrom(ITypeDescriptorContext, Type)

Returns whether this converter can convert an object of the given type to the type of this converter, using the specified context.

CanConvertFrom(Type)

Source:
TypeConverter.cs
Source:
TypeConverter.cs
Source:
TypeConverter.cs

Returns whether this converter can convert an object of the given type to the type of this converter.

public:
 bool CanConvertFrom(Type ^ sourceType);
public bool CanConvertFrom (Type sourceType);
member this.CanConvertFrom : Type -> bool
Public Function CanConvertFrom (sourceType As Type) As Boolean

Parameters

sourceType
Type

A Type that represents the type you want to convert from.

Returns

Boolean

true if this converter can perform the conversion; otherwise, false.

Remarks

As implemented in this class, this method always returns false. It never returns true.

Applies to

CanConvertFrom(ITypeDescriptorContext, Type)

Source:
TypeConverter.cs
Source:
TypeConverter.cs
Source:
TypeConverter.cs

Returns whether this converter can convert an object of the given type to the type of this converter, using the specified context.

public:
 virtual bool CanConvertFrom(System::ComponentModel::ITypeDescriptorContext ^ context, Type ^ sourceType);
public virtual bool CanConvertFrom (System.ComponentModel.ITypeDescriptorContext context, Type sourceType);
public virtual bool CanConvertFrom (System.ComponentModel.ITypeDescriptorContext? context, Type sourceType);
abstract member CanConvertFrom : System.ComponentModel.ITypeDescriptorContext * Type -> bool
override this.CanConvertFrom : System.ComponentModel.ITypeDescriptorContext * Type -> bool
Public Overridable Function CanConvertFrom (context As ITypeDescriptorContext, sourceType As Type) As Boolean

Parameters

context
ITypeDescriptorContext

An ITypeDescriptorContext that provides a format context.

sourceType
Type

A Type that represents the type you want to convert from.

Returns

Boolean

true if this converter can perform the conversion; otherwise, false.

Remarks

As implemented in this class, this method returns false, unless sourceType is an InstanceDescriptor.

Notes to Inheritors

Override this method to provide your own conversion requirements.

Use the context parameter to extract additional information about the environment from which this converter is invoked. This parameter can be null, so always check it. Also, properties on the context object can return null.

See also

Applies to