ConvertFrom Method (ITypeDescriptorContext, CultureInfo, Object)
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NullableBoolConverter.ConvertFrom Method (ITypeDescriptorContext, CultureInfo, Object)

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Converts the specified object to a Nullable<T> type (using the Boolean type constraint on the generic).

Namespace:  System.Windows
Assembly:  System.Windows (in System.Windows.dll)

public override Object ConvertFrom(
	ITypeDescriptorContext context,
	CultureInfo culture,
	Object value
)

Parameters

context
Type: System.ComponentModel.ITypeDescriptorContext
An ITypeDescriptorContext that provides a format context.
culture
Type: System.Globalization.CultureInfo
The CultureInfo to use as the current culture.
value
Type: System.Object
The object to convert to a Nullable<T> type (using the Boolean type constraint on the generic).

Return Value

Type: System.Object
A Nullable<T> type (using the Boolean type constraint on the generic) that represents the converted object.

ExceptionCondition
NotSupportedException

The conversion attempt failed. value is not a String, Boolean, or Nullable<T> (using the Boolean type constraint on the generic) type.

The NullableBoolConverter performs conversions between strings and Boolean types or Nullable<T> types (using the Boolean type constraint on the generic). Any other conversion attempts will cause an exception.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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