# OpcContext Class
- Namespace
- Opc.UaFx
- Assembly
- Opc.UaFx.Advanced.dll
- Package
- Opc.UaFx.Advanced v2.59.0
- Members
- OpcContext Members
- Also in
- Opc.UaFx.Client
Provides information and services about the system which belong to the current situation (process, thread, session, etc.).
## Syntax
```csharp
public class OpcContext
```
```vbnet
Public Class OpcContext
```
## Inheritance
[Object](https://learn.microsoft.com/dotnet/api/system.object) → **OpcContext**
## Implements
## Derived types
- [OpcContext.Local](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext.local/)
- [OpcNodeContext<T>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodecontext-1/)
- [OpcOperationContext](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.server.opcoperationcontext/)
## Properties
| Name | Description |
|---|---|
| [Current](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/members#current)static · since v2.50 | Gets or sets the OpcContext for the current thread. |
| [Empty](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/members#empty)static · since v2.9 | Gets an empty OpcContext which can be used in cases there a session nor system specific context is not necessarily required. |
| [Identity](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/members#identity) | Gets the [OpcUserIdentity](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcuseridentity/) which belongs to the situation represented. |
| [Namespaces](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/members#namespaces)since v2.12 | Gets a read-only collection of namespaces valid in the current OpcContext. |
| [NodeIdFactory](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/members#nodeidfactory) | Gets the [OpcNodeIdFactory](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeidfactory/) used to create new node identifiers using this context. |
| [Owner](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/members#owner)since v2.11 | Gets the owner of the current OpcContext. |
| [PreferredLocales](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/members#preferredlocales)virtual · since v2.11 | Gets a collection of preferred locales (see [Name](https://learn.microsoft.com/dotnet/api/system.globalization.cultureinfo.name)) to use to localize data and information. |
| [SessionId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/members#sessionid)virtual | Gets the session identifier which identifies the session within that the context has been created and is valid. |
## Methods
| Name | Description |
|---|---|
| [Enter](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/members#enter)static · 2 overloads · since v2.40 | Enters a new OpcContext using the `namespaces` specified. |
| [GetDataType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/members#getdatatype)6 overloads · since v2.22 | Retrieves the [OpcDataTypeInfo](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypeinfo/) object which is known under the `name` specified. |
| [GetNodeType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/members#getnodetype)4 overloads · since v2.50 | Retrieves the [OpcNodeTypeInfo](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodetypeinfo/) object which is known under the `name` specified. |
| [OfNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccontext/members#ofnode)since v2.50 | Creates a context for the `node` specified which uses the information of the current OpcContext. |
## Applies to
| Package | Versions |
|---|---|
| Opc.UaFx.Advanced | v2.5–v2.59 |