Display document from sharepoint

#1 Posted : Thursday, September 27, 2018 5:25:02 AM(UTC)

Vicki2018

Groups: Registered
Posts: 29

Thanks: 3 times

How can I get document with specific URL path from sharepoint for display directly?

#2 Posted : Thursday, September 27, 2018 3:12:17 PM(UTC)

Hadi

Groups: Manager, Tech Support, Administrators
Posts: 218

Was thanked: 12 time(s) in 12 post(s)

Once you have the ClientContext, you just need to get the filename you are looking for and get the URL for that file like so:

On-prem SharePoint:

Code:

Microsoft.SharePoint.Client.List root = context.Web.Lists.GetByTitle("Shared Documents");
string downloadUri = GetCombinedPath(context, root, request.FileUri.ToString());

byte[] data = null;
using (Microsoft.SharePoint.Client.FileInformation fileInfo = Microsoft.SharePoint.Client.File.OpenBinaryDirect(context, downloadUri))
{
   using (var ms = new MemoryStream())
   {
      fileInfo.Stream.CopyTo(ms);
      ms.Position = 0;
      using (RasterCodecs codecs = new RasterCodecs())
      using (RasterImage img = codecs.Load(ms))
         viewer.Image = img;
   }
}

Code:

      private static string GetCombinedPath(ClientContext context, Microsoft.SharePoint.Client.List root, string uri)
      {
         context.Load(root, a => a.ParentWebUrl);
         context.ExecuteQuery();

         string combined = "/" + SharedDocumentsList + "/" + uri;
         string parentWebUrl = root.ParentWebUrl;
         if (!string.IsNullOrEmpty(parentWebUrl) && parentWebUrl != "/")
            combined = parentWebUrl + combined;
         return combined;
      }

With SharePoint Online:

Code:

List root = clientContext.Web.Lists.GetByTitle("Documents");
string downloadUri = GetCombinedPath(clientContext, root, fileUri);
var camlQuery = new CamlQuery();
Microsoft.SharePoint.Client.File file = clientContext.Web.GetFileByServerRelativeUrl(downloadUri);
ClientResult<Stream> data = file.OpenBinaryStream();
clientContext.Load(file);
clientContext.ExecuteQuery();
using (System.IO.MemoryStream mStream = new System.IO.MemoryStream())
{
if (data != null)
{
  data.Value.CopyTo(mStream);
  mStream.Position = 0;
  using (RasterCodecs codecs = new RasterCodecs())
  using (RasterImage img = codecs.Load(mStream))
    viewer.Image = img;
}

Hadi Chami
Developer Support Manager
LEAD Technologies, Inc.


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Display document from sharepoint