Edytuj

Udostępnij za pośrednictwem

KeysConverter.ConvertTo Method

  • Reference

Definition

Namespace:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll
Source:
KeysConverter.cs
Source:
KeysConverter.cs
Source:
KeysConverter.cs

Converts the specified object to the specified destination type.

public:
 override System::Object ^ ConvertTo(System::ComponentModel::ITypeDescriptorContext ^ context, System::Globalization::CultureInfo ^ culture, System::Object ^ value, Type ^ destinationType);
public override object ConvertTo (System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType);
public override object? ConvertTo (System.ComponentModel.ITypeDescriptorContext? context, System.Globalization.CultureInfo? culture, object? value, Type destinationType);
override this.ConvertTo : System.ComponentModel.ITypeDescriptorContext * System.Globalization.CultureInfo * obj * Type -> obj
Public Overrides Function ConvertTo (context As ITypeDescriptorContext, culture As CultureInfo, value As Object, destinationType As Type) As Object

Parameters

context
ITypeDescriptorContext

An ITypeDescriptorContext that provides a format context, which can be used to extract additional information about the environment this converter is being invoked from. This parameter or properties of this parameter can be null.

culture
CultureInfo

A CultureInfo to provide locale information.

value
Object

The Object to convert.

destinationType
Type

The Type to convert the object to.

Returns

Object

An Object that represents the converted value.

Exceptions

ArgumentNullException

destinationType is null.

Remarks

The ConvertTo method is specialized to convert objects of type Keys or Int32. In this case, it will return an object of type String. Otherwise, it defers evaluation to the base implementation of this method.

Notes to Inheritors

Override this method to provide your own conversion requirements.

The context parameter can be used to extract additional information about the environment this converter is being invoked from. This may be null, so you should always check for this return value. Also, properties on the context object may also return null.

Applies to

See also