Specify file type when loading a document Leave feedback
When loading a document by specifying a path to a file or using FileStream, GroupDocs.Viewer determines file type by extension. Otherwise, GroupDocs.Viewer tries to determine file type by its signature or content. It takes time and may affect performance.
You can specify the file type using LoadOptions. If you do this, GroupDocs.Viewer skips file type detection and use the specified type.
The following code snippet shows how to specify the file type when loading a document:
using System.IO;
using GroupDocs.Viewer;
using GroupDocs.Viewer.Options;
// ...
Stream stream = GetFileStream("sample.docx"); //TODO: implement your method
// Specify the file type.
LoadOptions loadOptions = new LoadOptions(FileType.DOCX);
//Render a file.
using (Viewer viewer = new Viewer(stream, loadOptions))
{
HtmlViewOptions viewOptions = HtmlViewOptions.ForEmbeddedResources();
viewer.View(viewOptions);
}
Imports System.IO
Imports GroupDocs.Viewer
Imports GroupDocs.Viewer.Options
' ...
Module Program
Sub Main(args As String())
Dim stream As Stream = GetFileStream("sample.docx") 'TODO: implement your method
' Specify the file type.
Dim loadOptions As LoadOptions = New LoadOptions(FileType.DOCX)
'Render a file.
Using viewer As Viewer = New Viewer(stream, loadOptions)
Dim viewOptions As HtmlViewOptions = HtmlViewOptions.ForEmbeddedResources()
viewer.View(viewOptions)
End Using
End Sub
End Module
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