Connectivity Software User's Guide and Reference
GetRequiredServiceNonNull(IServiceProvider,Type) Method



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.Extensions Namespace > IServiceProviderExtension2 Class > GetRequiredServiceNonNull Method : GetRequiredServiceNonNull(IServiceProvider,Type) Method
The service provider.

The value of this parameter cannot be null (Nothing in Visual Basic).

An object that specifies the type of service object to get.

The value of this parameter cannot be null (Nothing in Visual Basic).

Gets the required service object of the specified type.
Syntax
'Declaration
 
<ExtensionAttribute()>
<JetBrains.Annotations.NotNullAttribute()>
Public Overloads Shared Function GetRequiredServiceNonNull( _
   ByVal serviceProvider As IServiceProvider, _
   ByVal serviceType As Type _
) As Object
'Usage
 
Dim serviceProvider As IServiceProvider
Dim serviceType As Type
Dim value As Object
 
value = IServiceProviderExtension2.GetRequiredServiceNonNull(serviceProvider, serviceType)
[Extension()]
[JetBrains.Annotations.NotNull()]
public static object GetRequiredServiceNonNull( 
   IServiceProvider serviceProvider,
   Type serviceType
)
[Extension()]
[JetBrains.Annotations.NotNull()]
public:
static Object^ GetRequiredServiceNonNull( 
   IServiceProvider^ serviceProvider,
   Type^ serviceType
) 

Parameters

serviceProvider
The service provider.

The value of this parameter cannot be null (Nothing in Visual Basic).

serviceType
An object that specifies the type of service object to get.

The value of this parameter cannot be null (Nothing in Visual Basic).

Return Value

A service object of type serviceType.

This method never returns null (Nothing in Visual Basic).

Exceptions
ExceptionDescription

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

A method call was invalid for the object's current state.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

An operation was performed on a disposed object.
Remarks

This is an extension method (info: C#, VB.NET). In languages that have support for extensions methods (such as C# and VB.NET), you can use the extension method as if it were a regular method on the object that is its first parameter. In other languages (such as with Python.NET), you will call the extension as a static method, and pass it the object on which it acts as its first parameter.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

See Also