North American Sales: 1-800-231-8588
Global Contacts
My Account
Menu
North American Sales: 1-800-321-8588
My Account
Sign In/Register
Design & Development
Design & Develop
Best Value Bundles
Infragistics Ultimate
$1,495
The only complete UX/UI toolkit for building high performance, modern web, mobile and desktop applications.
Infragistics Professional
$1,295
The comprehensive UI components library for web, mobile and desktop developers.
Ignite UI
$1,295
A complete library of UI components for building modern, data-rich and responsive web apps.
Web
App Builder
(New)
Ignite UI
Angular
ASP.NET Core
ASP.NET MVC
Blazor
jQuery
React
Web Components
Ultimate UI for ASP.NET Web Forms
Desktop
Ultimate UI for Windows Forms
Ultimate UI for WPF
Cross Platform
Ultimate UI for Uno
Ultimate UI for UWP
Ultimate UI for WinUI
Ultimate UI for Xamarin
Design to Code
Indigo.Design
App Builder
(New)
Automated Testing Tools
Test automation for Micro Focus UFT: Windows Forms
Test automation for Micro Focus UFT: WPF
Test automation for IBM RFT: Windows Forms
UX
Indigo.Design
A Unified Platform for Visual Design, UX Prototyping, Code Generation, and App Development
App Builder
Cloud-based WYSIWYG Drag & Drop Tool, Endless Theming options and Standards-Based Code Output
Business Intelligence
Reveal
Easily embed beautiful data visualizations into your apps
Slingshot
Empower everyone in your organization to use data to make smarter business decisions
Team Productivity
Slingshot
Connect everyone you work with to data, project management, content and chats for better results.
SharePlus
Secure, instant access to content and data on the go – with or without connectivity.
Learn & Support
Support
Help & Support Documents
Blogs
Forums
Product Ideas
Reference Applications
Customer Stories
Webinars
eBook & Whitepapers
Events
Free Trials
Pricing
Product Pricing / Buy Online
Renew Existing License
Contact Us
Ignite UI for Web Components
menu
Components
Get Started
search
Preparing search index...
The search index is not available
All
Public
Public/Protected
All
Inherited
Externals
Only exported
Modules
Nullable$1
constructor
$type
is
Nullable
$t
next
Hash
Code
has
Value
value
equals
get
Default
Value
get
Hash
Code
get
Value
Or
Default
get
Value
Or
Default1
memberwise
Clone
post
Decrement
post
Increment
pre
Decrement
pre
Increment
to
String
compare
compare
Simple
equals
Simple
equals
Static
get
Array
Of
Properties
get
Array
Of
Values
get
Hash
Code
Static
nullable
Equals
reference
Equals
Globals
igniteui-webcomponents-core
Nullable$1
Class Nullable$1<T>
Type Parameters
T
Hierarchy
Hierarchy (
view full
)
Base
Nullable$1
Constructors
constructor
Properties
$type
is
Nullable
$t
next
Hash
Code
Accessors
has
Value
value
Methods
equals
get
Default
Value
get
Hash
Code
get
Value
Or
Default
get
Value
Or
Default1
memberwise
Clone
post
Decrement
post
Increment
pre
Decrement
pre
Increment
to
String
compare
compare
Simple
equals
Simple
equals
Static
get
Array
Of
Properties
get
Array
Of
Values
get
Hash
Code
Static
nullable
Equals
reference
Equals
Constructors
constructor
new
Nullable$1
<
T
>
(
$t
,
value
)
:
Nullable$1
<
T
>
Type parameters
Type Parameters
T
Parameters
$t:
Type
value:
T
Returns
Nullable$1
<
T
>
Properties
$type
$type
:
Type
Readonly
is
Nullable
is
Nullable
:
true
= true
Static
$t
$t
:
Type
Static
next
Hash
Code
next
Hash
Code
:
number
Accessors
has
Value
get
hasValue
(
)
:
boolean
Returns
boolean
value
get
value
(
)
:
T
Returns
T
set
value
(
value
)
:
void
Parameters
value:
T
Returns
void
Methods
equals
equals
(
value
)
:
boolean
Parameters
value:
Nullable$1
<
T
>
Returns
boolean
get
Default
Value
get
Default
Value
(
)
:
T
Returns
T
get
Hash
Code
get
Hash
Code
(
)
:
number
Returns
number
get
Value
Or
Default
get
Value
Or
Default
(
)
:
T
Returns
T
get
Value
Or
Default1
get
Value
Or
Default1
(
defaultValue
)
:
T
Parameters
defaultValue:
T
Returns
T
memberwise
Clone
memberwise
Clone
(
)
:
Base
Returns
Base
post
Decrement
post
Decrement
(
)
:
Nullable$1
<
T
>
Returns
Nullable$1
<
T
>
post
Increment
post
Increment
(
)
:
Nullable$1
<
T
>
Returns
Nullable$1
<
T
>
pre
Decrement
pre
Decrement
(
)
:
Nullable$1
<
T
>
Returns
Nullable$1
<
T
>
pre
Increment
pre
Increment
(
)
:
Nullable$1
<
T
>
Returns
Nullable$1
<
T
>
to
String
to
String
(
)
:
string
Returns
string
Static
compare
compare
(
item1
,
item2
)
:
number
Parameters
item1:
any
item2:
any
Returns
number
Static
compare
Simple
compare
Simple
(
item1
,
item2
)
:
number
Parameters
item1:
any
item2:
any
Returns
number
Static
equals
Simple
equals
Simple
(
item1
,
item2
)
:
boolean
Parameters
item1:
any
item2:
any
Returns
boolean
Static
equals
Static
equals
Static
(
a
,
b
)
:
boolean
Parameters
a:
any
b:
any
Returns
boolean
Static
get
Array
Of
Properties
get
Array
Of
Properties
(
obj
)
:
any
[]
Parameters
obj:
any
Returns
any
[]
Static
get
Array
Of
Values
get
Array
Of
Values
(
obj
)
:
any
[]
Parameters
obj:
any
Returns
any
[]
Static
get
Hash
Code
Static
get
Hash
Code
Static
(
obj
)
:
number
Parameters
obj:
any
Returns
number
Static
nullable
Equals
nullable
Equals
(
v1
,
v2
)
:
boolean
Parameters
v1:
any
v2:
any
Returns
boolean
Static
reference
Equals
reference
Equals
(
a
,
b
)
:
boolean
Parameters
a:
any
b:
any
Returns
boolean