windowsforms-devexpress-dot-xtrapdfviewer-dot-pdfviewer-dot-loaddocument-x28-system-dot-io-dot-stream-x29.md
Loads a PDF document from the specified stream.
Namespace : DevExpress.XtraPdfViewer
Assembly : DevExpress.XtraPdfViewer.v25.2.dll
NuGet Package : DevExpress.Win.PdfViewer
public void LoadDocument(
Stream stream
)
Public Sub LoadDocument(
stream As Stream
)
| Name | Type | Description |
|---|---|---|
| stream | Stream |
A Stream class descendant.
|
The following example illustrates how to load a document into the PDF Viewer from a stream at runtime.
Create a FileStream object with the specified file path to open the existing file, and call one of the PdfViewer.LoadDocument overloaded method with this stream object passed as a parameter.
Note
The PDF Viewer expects that the input stream is not modified or closed before the component finishes using a document. Set true as the PdfViewer.DetachStreamAfterLoadComplete property value to force the PDF Viewer to complete all input operations after loading a document. Set this property to false to lock files by the input stream (i.e., make it impossible to edit or delete the document until it is opened in the PDF Viewer) and render large PDF files faster.
using System.IO;
using System.Windows.Forms;
namespace LoadDocumentFromStream {
public partial class Form1 : Form {
public Form1() {
InitializeComponent();
// Load a document from the stream.
FileStream stream = new FileStream("..\\..\\Demo.pdf", FileMode.Open);
pdfViewer1.LoadDocument(stream);
}
}
}
Imports System.IO
Imports System.Windows.Forms
Namespace LoadDocumentFromStream
Partial Public Class Form1
Inherits Form
Public Sub New()
InitializeComponent()
' Load a document from the stream.
Dim stream As New FileStream("..\..\Demo.pdf", FileMode.Open)
pdfViewer1.LoadDocument(stream)
End Sub
End Class
End Namespace
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the LoadDocument(Stream) method.
Note
The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.
how-to-show-a-pdf-file-in-the-pdfviewer-winforms/CS/PdfViewerSample/Form1.cs#L23
stream = new FileStream(@"..\..\Report2.pdf", FileMode.Open);
pdfViewer1.LoadDocument(stream);
}
how-to-show-a-pdf-file-in-the-pdfviewer-winforms/VB/PdfViewerSample/Form1.vb#L21
If stream Is Nothing Then stream = New FileStream("..\..\Report2.pdf", FileMode.Open)
pdfViewer1.LoadDocument(stream)
End Sub
See Also