SPFile.OpenBinary Method
Opens the file in binary format.
Namespace: Microsoft.SharePoint
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: Yes
Available in SharePoint Online
Syntax
'Declaration
Public Function OpenBinary As Byte()
'Usage
Dim instance As SPFile
Dim returnValue As Byte()
returnValue = instance.OpenBinary()
public byte[] OpenBinary()
Return Value
Type: []
A byte array that contains the file content.
Examples
The following code example iterates through the collection of files in the Shared Documents document library of the current site and opens each file in binary format so that it can be attached to a specified item in the Events list. The OpenBinary method fails if the size of the file is 0 (zero) bytes.
Dim web As SPWeb = SPContext.Current.Web
Dim attachFolder As SPFolder = web.Folders("Shared Documents")
Dim attachFiles As SPFileCollection = attachFolder.Files
Dim attachList As SPList = web.Lists("Events")
Dim attachItem As SPListItem = attachList.Items(10)
Dim attachments As SPAttachmentCollection = attachItem.Attachments
Dim attachFile As SPFile
For Each attachFile In attachFiles
Dim fileName As String = attachFile.Name
Dim binFile As Byte() = attachFile.OpenBinary()
attachments.Add(fileName, binFile)
Next attachFile
attachItem.Update()
SPWeb oWebsite = SPContext.Current.Web;
SPFolder oFolder = oWebsite.Folders["Shared Documents"];
SPFileCollection collFiles = oFolder.Files;
SPList oList = oWebsite.Lists["Events"];
SPListItem oListItem = oList.Items[10];
SPAttachmentCollection collAttachments = oListItem.Attachments;
foreach (SPFile oFile in collFiles)
{
string strFilename = oFile.Name;
byte[] binFile = oFile.OpenBinary();
collAttachments.Add(strFilename, binFile);
}
oListItem.Update();