NullableBoolConverter.ConvertFrom Method (ITypeDescriptorContext, CultureInfo, Object)
Microsoft Silverlight will reach end of support after October 2021. Learn more.
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)
Syntax
'Declaration
Public Overrides Function ConvertFrom ( _
context As ITypeDescriptorContext, _
culture As CultureInfo, _
value As Object _
) As Object
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.
Exceptions
| Exception | Condition |
|---|---|
| NotSupportedException | The conversion attempt failed. value is not a String, Boolean, or Nullable<T> (using the Boolean type constraint on the generic) type. |
Remarks
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.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.