DownloadFile Method

C#
Visual Basic
Objective-C
Java
C++

public void DownloadFile( 
   Uri sourceUri,
   string destinationFileName
)

'Declaration
 
Public Sub DownloadFile( _
   ByVal sourceUri As Uri, _
   ByVal destinationFileName As String _
)

'Usage
 
Dim instance As SharePointClient
Dim sourceUri As Uri
Dim destinationFileName As String
 
instance.DownloadFile(sourceUri, destinationFileName)

public:
void DownloadFile( 
   Uri^ sourceUri,
   String^ destinationFileName
)

Parameters

sourceUri: The full URI for the source item in the SharePoint server. This value cannot be null (Nothing in Visual Basic). It must be the URI to a valid SharePoint item, for example http://server/Shared Documents/File.ext.
destinationFileName: The destination file name to download the item to. If the file already exists, it will be overwritten. This value cannot be null (Nothing in Visual Basic).

This method will not return until the item is finished downloading to disk. If an error occurs, this method will throw an exception.

To download a file asynchronously, use the DownloadFileAsync method.

To download an item to a stream, use the GetDownloadStream or GetDownloadStreamAsync method.

To upload an item to SharePoint, use the UploadFile, UploadFileAsync, UploadStream or UploadStreamAsync method.

This example will download a document at the specified SharePoint URI into a disk file and then get the image information using Leadtools.Codecs.RasterCodecs.

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.ImageProcessing.Color
Imports Leadtools.SharePoint.Client

Private Shared Sub SharePointClientDownloadFileExample()
   ' Replace SHAREPOINT_SITE_URI with a valid URL to a SharePoint site, for example
   ' http://SiteCollection/MySite
   Dim siteUri As New Uri(SHAREPOINT_SITE_URI)
   ' Replace SHAREPOINT_FOLDER_NAME with a valid folder on the site above, for example
   ' "Documents" or "Documents\Sub Documents"
   Dim folderName As String = SHAREPOINT_FOLDER_NAME

   ' Replace SHAREPOINT_DOCUMENT_NAME with a valid document on the folder above, for example
   ' MyDocument.tif
   Dim documentName As String = SHAREPOINT_DOCUMENT_NAME

   ' Build the full URL to the document are we going to download
   Dim builder As New UriBuilder(siteUri)
   builder.Path = Path.Combine(builder.Path, folderName)
   builder.Path = Path.Combine(builder.Path, documentName)
   Dim sourceDocumentUri As Uri = builder.Uri

   Dim spClient As New SharePointClient()

   ' Optional: Set the credentials:
   spClient.Credentials = New NetworkCredential(USER_NAME, PASSWORD, DOMAIN)

   Dim tempFileName As String = Path.GetTempFileName()
   Try
      ' Download the SharePoint item to the temporary file
      spClient.DownloadFile(sourceDocumentUri, tempFileName)

      ' Use RasterCodecs to get its info
      Using codecs As New RasterCodecs()
         Using imageInfo As CodecsImageInfo = codecs.GetInformation(tempFileName, True)
            ' Show the image info
            Console.WriteLine("URL:        {0}", sourceDocumentUri)
            Console.WriteLine("Pages:      {0}", imageInfo.TotalPages)
            Console.WriteLine("Size:       {0} by {1} pixels", imageInfo.Width, imageInfo.Height)
            Console.WriteLine("Resolution: {0} by {1} dpi", imageInfo.XResolution, imageInfo.YResolution)
            Console.WriteLine("Bits/Pixel: {0}", imageInfo.BitsPerPixel)
         End Using
      End Using
   Finally
      ' Delete the temporary file
      File.Delete(tempFileName)
   End Try
End Sub

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Color;
using Leadtools.SharePoint.Client;

private static void SharePointClientDownloadFileExample()
{
   // Replace SHAREPOINT_SITE_URI with a valid URL to a SharePoint site, for example
   // http://SiteCollection/MySite
   Uri siteUri = new Uri(SHAREPOINT_SITE_URI);
   // Replace SHAREPOINT_FOLDER_NAME with a valid folder on the site above, for example
   // "Documents" or "Documents\Sub Documents"
   string folderName = SHAREPOINT_FOLDER_NAME;

   // Replace SHAREPOINT_DOCUMENT_NAME with a valid document on the folder above, for example
   // MyDocument.tif
   string documentName = SHAREPOINT_DOCUMENT_NAME;

   // Build the full URL to the document are we going to download
   UriBuilder builder = new UriBuilder(siteUri);
   builder.Path = Path.Combine(builder.Path, folderName);
   builder.Path = Path.Combine(builder.Path, documentName);
   Uri sourceDocumentUri = builder.Uri;

   SharePointClient spClient = new SharePointClient();

   // Optional: Set the credentials:
   spClient.Credentials = new NetworkCredential(USER_NAME, PASSWORD, DOMAIN);

   string tempFileName = Path.GetTempFileName();
   try
   {
      // Download the SharePoint item to the temporary file
      spClient.DownloadFile(sourceDocumentUri, tempFileName);

      // Use RasterCodecs to get its info
      using (RasterCodecs codecs = new RasterCodecs())
      {
         using (CodecsImageInfo imageInfo = codecs.GetInformation(tempFileName, true))
         {
            // Show the image info
            Console.WriteLine("URL:        {0}", sourceDocumentUri);
            Console.WriteLine("Pages:      {0}", imageInfo.TotalPages);
            Console.WriteLine("Size:       {0} by {1} pixels", imageInfo.Width, imageInfo.Height);
            Console.WriteLine("Resolution: {0} by {1} dpi", imageInfo.XResolution, imageInfo.YResolution);
            Console.WriteLine("Bits/Pixel: {0}", imageInfo.BitsPerPixel);
         }
      }
   }
   finally
   {
      // Delete the temporary file
      File.Delete(tempFileName);
   }
}

Target Platforms

Reference

SharePointClient Class
SharePointClient Members