Public Overloads Overrides Function ConvertFrom( _
   ByVal context As ITypeDescriptorContext, _
   ByVal culture As CultureInfo, _
   ByVal value As Object _
) As Object

Dim instance As DoubleNanValueConverter
Dim context As ITypeDescriptorContext
Dim culture As CultureInfo
Dim value As Object
Dim value As Object
 
value = instance.ConvertFrom(context, culture, value)

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