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LengthConverter.ConvertFrom Method (ITypeDescriptorContext, CultureInfo, Object)

Converts instances of other data types into instances of Double that represent an object's length.

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

public override Object ConvertFrom(
	ITypeDescriptorContext typeDescriptorContext,
	CultureInfo cultureInfo,
	Object source


Type: System.ComponentModel.ITypeDescriptorContext

Provides contextual information about a component.

Type: System.Globalization.CultureInfo

Represents culture-specific information that is maintained during a conversion.

Type: System.Object

Identifies the object that is being converted to Double.

Return Value

Type: System.Object
An instance of Double that is the value of the conversion.


Occurs if the source is null.


Occurs if the source is not null and is not a valid type for conversion.

LengthConverter supports conversion of the following types: String, Decimal, Single, Double, Int16, Int32, Int64, UInt16, UInt32, UInt64.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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