OPC Studio User's Guide and Reference
Quality Property (DAItemPointSubscribeArguments)



OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess.Connectivity Namespace > DAItemPointSubscribeArguments Class : Quality Property
Gets or sets the quality.
Syntax
'Declaration
 
<ArgumentDirectionsAttribute(ArgumentDirections.Output)>
<NotNullAttribute()>
Public Shadows Property Quality As DAQuality
'Usage
 
Dim instance As DAItemPointSubscribeArguments
Dim value As DAQuality
 
instance.Quality = value
 
value = instance.Quality
[ArgumentDirections(ArgumentDirections.Output)]
[NotNull()]
public new DAQuality Quality {get; set;}
[ArgumentDirections(ArgumentDirections.Output)]
[NotNull()]
public:
new property DAQuality^ Quality {
   DAQuality^ get();
   void set (    DAQuality^ value);
}

Property Value

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

Remarks

Because there are implicit conversions to OpcLabs.EasyOpc.DataAccess.DAQuality from System.Int32 or OpcLabs.EasyOpc.DataAccess.DAQualities, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use an integer (representing the internal value of the quality), or an element of the OpcLabs.EasyOpc.DataAccess.DAQualities enumeration in place of OpcLabs.EasyOpc.DataAccess.DAQuality value when setting this property, and the corresponding quality specification will be constructed automatically. Conversely, you can simply use the return value in place of a System.Int32 (representing the internal value of the quality), or in place a OpcLabs.EasyOpc.DataAccess.DAQualities enumeration value. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.EasyOpc.DataAccess.DAQuality.DAQuality Constructor(Int32) or OpcLabs.EasyOpc.DataAccess.DAQuality.DAQuality Constructor(DAQualities) constructor, or the OpcLabs.EasyOpc.DataAccess.DAQuality.ToInt32 or OpcLabs.EasyOpc.DataAccess.DAQuality.ToDAQualities static method instead.

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