# OpcStatus Members > Reference: Provides information about the outcome of an operation.

Type: OpcStatus
Namespace: Opc.UaFx
Assembly: Opc.UaFx.Advanced.dll
Package: Opc.UaFx.Advanced v2.59.0
Also in: Opc.UaFx.Client

## Constructors ### OpcStatus 2 overloads | Overload | Description | |---|---| | [OpcStatus()](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#opcstatus-noparams) | Initializes a new instance of the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) class which represents a 'neutral good' status. | | [OpcStatus(OpcStatusCode)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#opcstatus-opc-uafx-opcstatuscode) | Initializes a new instance of the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) class which represents the information associated with the `code` specified. | #### OpcStatus() Initializes a new instance of the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) class which represents a 'neutral good' status.

```csharp public OpcStatus() ```

```vbnet Public Sub New() ```

#### OpcStatus(OpcStatusCode) Initializes a new instance of the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) class which represents the information associated with the `code` specified.

```csharp public OpcStatus(OpcStatusCode code) ```

```vbnet Public Sub New(code As OpcStatusCode) ```

```csharp public OpcStatusAggregateBits AggregateBits { get; } ```

```vbnet Public ReadOnly Property AggregateBits As OpcStatusAggregateBits ```

**Property value** [OpcStatusAggregateBits](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatusaggregatebits/) A combination of the members defined by the [OpcStatusAggregateBits](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatusaggregatebits/) enumeration. ### Code Gets the underlying status code its information is represented by the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/).

```csharp public OpcStatusCode Code { get; } ```

```vbnet Public ReadOnly Property Code As OpcStatusCode ```

**Property value** [OpcStatusCode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuscode/) One of the members defined by the [OpcStatusCode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuscode/) enumeration. ### CodeBits Gets the bits (16:31) of the [Code](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#code) used to provide status data without any extra information.

```csharp public uint CodeBits { get; } ```

```vbnet Public ReadOnly Property CodeBits As UInteger ```

**Property value** [UInt32](https://learn.microsoft.com/dotnet/api/system.uint32) The 16 bits used to provide status data without any extra information. ### Description Gets a value which describes the status in detail.

```csharp public string Description { get; } ```

```vbnet Public ReadOnly Property Description As String ```

**Property value** [String](https://learn.microsoft.com/dotnet/api/system.string) A [string](https://learn.microsoft.com/dotnet/api/system.string) which describes the [OpcStatusCode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuscode/) represented in detail. ### FlagBits Gets the bits (0:15) of the [Code](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#code) used to provide additional information about the status.

```csharp public uint FlagBits { get; } ```

```vbnet Public ReadOnly Property FlagBits As UInteger ```

**Property value** [UInt32](https://learn.microsoft.com/dotnet/api/system.uint32) The 16 bits used to provide additional information about the status. ### HasSemanticsChanged Gets a value indicating that the semantics of the associated data value have changed. Clients should not process the data value until they re-read the metadata associated with the variable. Servers should set this property to true if the metadata has changed in way that could cause application errors if the Client does not re-read the metadata. This is for example a change to the engineering units.

```csharp public bool HasSemanticsChanged { get; } ```

```vbnet Public ReadOnly Property HasSemanticsChanged As Boolean ```

**Property value** [Boolean](https://learn.microsoft.com/dotnet/api/system.boolean) The value true if the semantic information of a value have changed and a Client needs to re-read the metadata before processing the data value; otherwise the value false. **Remarks** Other specifications may define additional conditions. A Server may define other conditions that cause this property to be equals true. This property is only used as part of data change notifications or historical read operations. In other contexts this property shall be equals false. ### HasStructureChanged Gets a value indicating that the structure of the associated data value has changed since the last notification. Clients should not process the data value unless they re-read the metadata. Servers shall set this property to true if the data type encoding used for a variable or the enumeration information (via EnumStrings) of the data type of a variable changes.

```csharp public bool HasStructureChanged { get; } ```

```vbnet Public ReadOnly Property HasStructureChanged As Boolean ```

**Property value** [Boolean](https://learn.microsoft.com/dotnet/api/system.boolean) The value true if the Server wants to warn Clients, that parse complex data values, that their parsing routines could fail because the serialized form of the data value changed; otherwise the value false. **Remarks** This property is only used as part of data change notifications or historical read operations. In other contexts this property shall be equals false. ### HasValueInfo Gets a value indicating that the status information is associated with a data value returned from the Server.

```csharp public bool HasValueInfo { get; } ```

```vbnet Public ReadOnly Property HasValueInfo As Boolean ```

**Property value** [Boolean](https://learn.microsoft.com/dotnet/api/system.boolean) The value true if the status information belongs to a data value returned from the Server; otherwise the value false. ### IsBad Gets a value indicating whether the status [Code](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#code) expresses a bad outcome of the operation associated with this [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/). In the most cases a Client has performed an invalid or (at the moment) unsupported operation. Another reason for a bad status could be that the Server may fail to complete the requested operation upon internal issues with the underlying data source. For more details about specific bad status information see the "bad" members of the [OpcStatusCode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuscode/) enumeration.

```csharp public bool IsBad { get; } ```

```vbnet Public ReadOnly Property IsBad As Boolean ```

**Property value** [Boolean](https://learn.microsoft.com/dotnet/api/system.boolean) The value true if the [Code](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#code) expresses a failure; otherwise the value false. ### IsGood Gets a value indicating whether the status [Code](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#code) expresses a good outcome of the operation associated with this [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/). The Client can be sure about that the Server successfully completed the operation requested and its result is totally reliable. Specific "good" status codes may inform the Client about the circumstances under which the operation completed. For more details about specific good status information see the "good" members of the [OpcStatusCode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuscode/) enumeration.

```csharp public bool IsGood { get; } ```

```vbnet Public ReadOnly Property IsGood As Boolean ```

```csharp public bool IsOverflow { get; } ```

```vbnet Public ReadOnly Property IsOverflow As Boolean ```

**Property value** [Boolean](https://learn.microsoft.com/dotnet/api/system.boolean) The value true if the queue buffer of a monitored item reached its limit and had to purge out data. **Remarks** This property is only equals true if the monitored item queue size is greater than one. ### IsUncertain Gets a value indicating whether the status [Code](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#code) expresses an uncertain outcome of the operation associated with this [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/). An operation with an uncertain outcome expresses in general that the Server can not guarantee a total reliable data value nor an entire complete and successful processing of an operation. The reasons to uncertains varying, for more details about specific uncertain status information see the "uncertain" members of the [OpcStatusCode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuscode/) enumeration.

```csharp public bool IsUncertain { get; } ```

```vbnet Public ReadOnly Property IsUncertain As Boolean ```

```csharp public OpcStatusLimitBits LimitBits { get; } ```

```vbnet Public ReadOnly Property LimitBits As OpcStatusLimitBits ```

**Property value** [OpcStatusLimitBits](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuslimitbits/) A combination of the members defined by the [OpcStatusLimitBits](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuslimitbits/) enumeration. ### SubCode Gets the code used to represent different conditions.

```csharp public uint SubCode { get; } ```

```vbnet Public ReadOnly Property SubCode As UInteger ```

**Property value** [UInt32](https://learn.microsoft.com/dotnet/api/system.uint32) A value representing the condition under that the status was produced. ## Methods ### CompareTo 2 overloads | Overload | Description | |---|---| | [CompareTo(object)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#compareto-system-object) | Compares the current [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) with the `other`. | | [CompareTo(OpcStatus)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#compareto-opc-uafx-opcstatus) | Compares the current [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) with another [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/). | #### CompareTo(object) Compares the current [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) with the `other`.

```csharp public int CompareTo(object other) ```

```vbnet Public Function CompareTo(other As Object) As Integer ```

**Parameters** | Name | Type | Description | |---|---|---| | `other` | [Object](https://learn.microsoft.com/dotnet/api/system.object) | The [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) to compare with this [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/). | **Returns** [Int32](https://learn.microsoft.com/dotnet/api/system.int32) A 32-bit signed integer that indicates the relative order of the objects being compared ([CompareTo(object)](https://learn.microsoft.com/dotnet/api/system.icomparable.compareto)). **Implements** [CompareTo(object)](https://learn.microsoft.com/dotnet/api/system.icomparable.compareto) #### CompareTo(OpcStatus) Compares the current [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) with another [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/).

```csharp public int CompareTo(OpcStatus other) ```

```vbnet Public Function CompareTo(other As OpcStatus) As Integer ```

**Parameters** | Name | Type | Description | |---|---|---| | `other` | [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) | The [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) to compare with this [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/). | **Returns** [Int32](https://learn.microsoft.com/dotnet/api/system.int32) A 32-bit signed integer that indicates the relative order of the objects being compared ([CompareTo(T)](https://learn.microsoft.com/dotnet/api/system.icomparable-1.compareto)). **Implements** [CompareTo(OpcStatus)](https://learn.microsoft.com/dotnet/api/system.icomparable-1.compareto) ### Equals 2 overloads | Overload | Description | |---|---| | [Equals(object)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#equals-system-object)override | Determines whether the specified `other` is equal to this [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/). | | [Equals(OpcStatus)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#equals-opc-uafx-opcstatus) | Determines whether the specified `other` is equal to this [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/). | #### Equals(object) override Determines whether the specified `other` is equal to this [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/).

```csharp public override bool Equals(object other) ```

```vbnet Public Overrides Function Equals(other As Object) As Boolean ```

**Parameters** | Name | Type | Description | |---|---|---| | `other` | [Object](https://learn.microsoft.com/dotnet/api/system.object) | The [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) to compare to the current [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/). | **Returns** [Boolean](https://learn.microsoft.com/dotnet/api/system.boolean) The value true if the specified [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) is equal to the current [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/); otherwise the value false. **Overrides** [Equals(object)](https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals%28system-object%29) #### Equals(OpcStatus) Determines whether the specified `other` is equal to this [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/).

```csharp public bool Equals(OpcStatus other) ```

```vbnet Public Function Equals(other As OpcStatus) As Boolean ```

```csharp public override int GetHashCode() ```

```vbnet Public Overrides Function GetHashCode() As Integer ```

**Returns** [Int32](https://learn.microsoft.com/dotnet/api/system.int32) An [int](https://learn.microsoft.com/dotnet/api/system.int32) that contains the hash code for the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/). **Overrides** [GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) ### OnChanged protected · virtual Raises the [Changed](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#changed) event of the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/).

```csharp protected virtual void OnChanged(EventArgs e) ```

```vbnet Protected Overridable Sub OnChanged(e As EventArgs) ```

**Parameters** | Name | Type | Description | |---|---|---| | `e` | [EventArgs](https://learn.microsoft.com/dotnet/api/system.eventargs) | The event data. | ### ToString override Returns a string that represents the current [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/).

```csharp public override string ToString() ```

```vbnet Public Overrides Function ToString() As String ```

**Returns** [String](https://learn.microsoft.com/dotnet/api/system.string) A string that represents the current [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) including the [Code](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#code) and [Description](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#description) of the status represented. **Overrides** [ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring) ### Update 2 overloads | Overload | Description | |---|---| | [Update(OpcStatusCode)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#update-opc-uafx-opcstatuscode) | Updates the [Code](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#code) represented by the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) using the `code` specified. | | [Update(OpcStatus)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#update-opc-uafx-opcstatus)since v2.8 | Updates the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) using the status data of the `other`[OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/). | #### Update(OpcStatusCode) Updates the [Code](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#code) represented by the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) using the `code` specified.

```csharp public void Update(OpcStatusCode code) ```

```vbnet Public Sub Update(code As OpcStatusCode) ```

**Parameters** | Name | Type | Description | |---|---|---| | `code` | [OpcStatusCode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuscode/) | The [OpcStatusCode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuscode/) to represent. | **Remarks** Updating the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) results into [Changed](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#changed) events. #### Update(OpcStatus) since v2.8 Updates the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) using the status data of the `other`[OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/).

```csharp public void Update(OpcStatus other) ```

```vbnet Public Sub Update(other As OpcStatus) ```

```csharp public event EventHandler Changed ```

```vbnet Public Event Changed As EventHandler ```

**Event type** [EventHandler](https://learn.microsoft.com/dotnet/api/system.eventhandler) ## Operators ### Equality static Returns a value indicating whether two instance of [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) are equal.

```csharp public static bool operator ==(OpcStatus left, OpcStatus right) ```

```vbnet Public Shared Operator =(left As OpcStatus, right As OpcStatus) As Boolean ```

```csharp public static bool operator >(OpcStatus left, OpcStatus right) ```

```vbnet Public Shared Operator >(left As OpcStatus, right As OpcStatus) As Boolean ```

```csharp public static bool operator >=(OpcStatus left, OpcStatus right) ```

```vbnet Public Shared Operator >=(left As OpcStatus, right As OpcStatus) As Boolean ```

**Parameters** | Name | Type | Description | |---|---|---| | `left` | [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) | The first [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) object. | | `right` | [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) | The second [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) object. | **Returns** [Boolean](https://learn.microsoft.com/dotnet/api/system.boolean) The value true if `left` is greater than or equal to `right`; otherwise, false. ### Implicit static · 2 overloads | Overload | Description | |---|---| | [implicit operator OpcStatus(OpcStatusCode)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#op-implicit-opc-uafx-opcstatuscode-opc-uafx-opcstatus)static | Converts a [OpcStatusCode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuscode/) to an [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) object. | | [implicit operator OpcStatus(StatusCode)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#op-implicit-opc-ua-statuscode-opc-uafx-opcstatus)static | Converts a StatusCode to an [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) object. | #### implicit operator OpcStatus(OpcStatusCode) static Converts a [OpcStatusCode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuscode/) to an [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) object.

```csharp public static implicit operator OpcStatus(OpcStatusCode value) ```

```vbnet Public Shared Widening Operator CType(value As OpcStatusCode) As OpcStatus ```

**Parameters** | Name | Type | Description | |---|---|---| | `value` | [OpcStatusCode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuscode/) | A [OpcStatusCode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuscode/) that represents the status. | **Returns** [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) An instance of the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) class initialized from the `value`. #### implicit operator OpcStatus(StatusCode) static Converts a StatusCode to an [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) object.

```csharp public static implicit operator OpcStatus(StatusCode value) ```

```vbnet Public Shared Widening Operator CType(value As StatusCode) As OpcStatus ```

**Parameters** | Name | Type | Description | |---|---|---| | `value` | StatusCode | A StatusCode that represents the status. | **Returns** [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) An instance of the [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) class initialized from the `value`. ### Inequality static Returns a value indicating whether two instances of [OpcStatus](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/) are not equal.

```csharp public static bool operator !=(OpcStatus left, OpcStatus right) ```

```vbnet Public Shared Operator <>(left As OpcStatus, right As OpcStatus) As Boolean ```

```csharp public static bool operator <(OpcStatus left, OpcStatus right) ```

```vbnet Public Shared Operator <(left As OpcStatus, right As OpcStatus) As Boolean ```

```csharp public static bool operator <=(OpcStatus left, OpcStatus right) ```

```vbnet Public Shared Operator <=(left As OpcStatus, right As OpcStatus) As Boolean ```