QuickOPC User's Guide and Reference
CheckApplicationDescription Property (_UADiscoveryParameters)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.Engine.ComTypes Namespace > _UADiscoveryParameters Interface : CheckApplicationDescription Property
Check the application description.
Syntax
'Declaration
 
Property CheckApplicationDescription As Boolean
'Usage
 
Dim instance As _UADiscoveryParameters
Dim value As Boolean
 
instance.CheckApplicationDescription = value
 
value = instance.CheckApplicationDescription
bool CheckApplicationDescription {get; set;}
property bool CheckApplicationDescription {
   bool get();
   void set (    bool value);
}
Remarks

In order to obtain or modify this parameter, in the default state (when OpcLabs.EasyOpc.UA.EasyUAClientCore.Isolated equals to false), access OpcLabs.EasyOpc.UA.Engine.UAClientAdaptableParameters.DiscoveryParameters property of static OpcLabs.EasyOpc.UA.EasyUAClientCore.AdaptableParameters. If you have set OpcLabs.EasyOpc.UA.EasyUAClientCore.Isolated to true, you need to access OpcLabs.EasyOpc.UA.Engine.UAClientAdaptableParameters.DiscoveryParameters property of OpcLabs.EasyOpc.UA.EasyUAClientCore.IsolatedParameters.

During server discovery, when enabled, checks each ApplicationDescription returned by the FindServers OPC-UA service. Problems found are logged, and invalid application descriptions are then ignored.

Following aspects of the application description are checked:

Where "must" is used, the condition must be fulfilled for the application description to be valid. Where "should" is used, the condition is only a recommendation (and a failure is just logged).

This method or property does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.

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