Connectivity Software User's Guide and Reference
LoadFrom Method (IFilePersistor)



OpcLabs.BaseLibPrimitives Assembly > OpcLabs.BaseLib.Persistence Namespace > IFilePersistor Interface : LoadFrom Method
The name of the file to load from.

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

Loads data from the specified file.
Syntax
'Declaration
 
<JetBrains.Annotations.CanBeNullAttribute()>
Function LoadFrom( _
   ByVal fileName As String _
) As Exception
'Usage
 
Dim instance As IFilePersistor
Dim fileName As String
Dim value As Exception
 
value = instance.LoadFrom(fileName)
[JetBrains.Annotations.CanBeNull()]
Exception LoadFrom( 
   string fileName
)
[JetBrains.Annotations.CanBeNull()]
Exception^ LoadFrom( 
   String^ fileName
) 

Parameters

fileName
The name of the file to load from.

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

Return Value

This method can return null (Nothing in Visual Basic).

Exceptions
ExceptionDescription

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.

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