'Declaration
 
Public Overridable Function OpenFileAsync( _
   Optional ByVal defaultFormat As TDocFormat, _
   Optional ByVal docFormatRegistry As TDocFormatRegistry, _
   Optional ByVal reportErrors As System.Boolean, _
   Optional ByVal askToSaveChanges As System.Boolean _
) As NPromise(Of Boolean)

'Usage
 
Dim instance As NDocumentView(Of TDoc,TDocContent,TDocFormat,TDocFormatRegistry,TDocLoadSettings,TDocSaveSettings)
Dim defaultFormat As TDocFormat
Dim docFormatRegistry As TDocFormatRegistry
Dim reportErrors As System.Boolean
Dim askToSaveChanges As System.Boolean
Dim value As NPromise(Of Boolean)
 
value = instance.OpenFileAsync(defaultFormat, docFormatRegistry, reportErrors, askToSaveChanges)

public virtual NPromise<bool> OpenFileAsync( 
   TDocFormat defaultFormat,
   TDocFormatRegistry docFormatRegistry,
   System.bool reportErrors,
   System.bool askToSaveChanges
)

Parameters

defaultFormat

the default selected format - if null the first available is chosen

docFormatRegistry

the format registry to use for available formats - if null - the view DocumentFormatRegistry is used.

reportErrors

whether errors should be reported to the user

askToSaveChanges

whether the user should be prompted to save changes to the document, if it is modified

Return Value

Target Platforms: Windows 11, Windows 10, Windows 7, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later)

Reference

NDocumentView<TDoc,TDocContent,TDocFormat,TDocFormatRegistry,TDocLoadSettings,TDocSaveSettings> Class
NDocumentView<TDoc,TDocContent,TDocFormat,TDocFormatRegistry,TDocLoadSettings,TDocSaveSettings> Members