Determines whether the application's own certificate is present.
            
            
            Syntax
            
        
            Parameters
- application
 
- The OPC UA client/server application object that will perform the operation.
 
            
            Return Value
Returns true if the application's own certificate is present in the certificate store. Returns false otherwise.
 
            Exceptions
| Exception | Description | 
| System.ArgumentNullException | 
             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.  | 
| OpcLabs.EasyOpc.UA.OperationModel.UAException | 
            The OPC UA operation has failed. This operation exception in uniformly used to allow 
            common handling of various kinds of errors. The System.Exception.InnerException always contains
            information about the actual error cause. 
        
            This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately.  | 
 
            
            
            
            
            
            
            
            
            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