Class NullableHelper

A framework independent utility class for the new Nullable type in .NET Framework 2.0

Inheritance
System.Object
NullableHelper
Namespace: Syncfusion.Windows.ComponentModel
Assembly: Syncfusion.GridCommon.WPF.dll
Syntax
public class NullableHelper : Object

Constructors

NullableHelper()

Declaration
public NullableHelper()

Methods

ChangeType(Object, Type)

Use this method instead of Convert.ChangeType. Makes Convert.ChangeType work with Nullable types.

Declaration
public static object ChangeType(object value, Type type)
Parameters
Type Name Description
System.Object value
System.Type type
Returns
Type
System.Object

ChangeType(Object, Type, IFormatProvider)

Use this method instead of Convert.ChangeType. Makes Convert.ChangeType work with Nullable types.

Declaration
public static object ChangeType(object value, Type type, IFormatProvider provider)
Parameters
Type Name Description
System.Object value
System.Type type
System.IFormatProvider provider
Returns
Type
System.Object

FixDbNUllasNull(Object, Type)

Returns null if value is DBNull and specified type is a Nullable type. Otherwise the value is returned unchanged.

Declaration
public static object FixDbNUllasNull(object value, Type type)
Parameters
Type Name Description
System.Object value
System.Type type
Returns
Type
System.Object

GetUnderlyingType(Type)

Returns the underlying type of a Nullable type. For .NET 1.0 and 1.1 this method will always return null.

Declaration
public static Type GetUnderlyingType(Type type)
Parameters
Type Name Description
System.Type type
Returns
Type
System.Type

IsNullableType(Type)

Declaration
public static bool IsNullableType(Type nullableType)
Parameters
Type Name Description
System.Type nullableType
Returns
Type
System.Boolean