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OpacityConverter.ConvertTo Method

  • Reference

Definition

Namespace:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll

Converts from the converter's native type to a value of the 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

A ITypeDescriptorContext that provides information about the context of a type converter.

culture
CultureInfo

The locale information for the conversion.

value
Object

The value 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.

NotSupportedException

value cannot be converted to the destinationType.

Remarks

The ConvertTo method is specialized to convert integral values to their String percentage representations. Other types are passed to the base class implementation of this method.

Notes to Inheritors

Override this method to provide your own conversion requirements.

You can use the context parameter to extract additional information about the environment this converter is being invoked from. The parameter may be null, so you should always verify the contents. Also, properties on the ITypeDescriptorContext may also return null.

The resultant object is a String representing the percentage of opacity.

Applies to

See also