title: URL Encode - oauth_signature
body: <p>I have successfully setup the oauth authentication to access my dropbox using sharpbox.  Sharpbox is an open source "front end" that handles the nuts and bolts of the process.  Using it i can return file info in a particular folder in my account.</p>
  
  <p>I bind the filename and a generated URI to a gridview in a VS 2010 web app.  I have a hyperlink with the text set to name and the DataNavigateUrlFields to the unique URL.  It works great IF there is no "+" character in the oauth_signature part of the url string.  If the plus is there, it returns "{"error": "Invalid signature. Expected signature base string:"</p>
  
  <p>Thanks for your consideration.</p>
  
  <hr>
  
  <p>Thank you for your help, here is my code </p>
  
  <pre><code>Public Sub MakeURL()
      dbOpen()
      Dim myfolder As ICloudDirectoryEntry = dropBoxStorage.GetFolder("/DIR/SUBDIR/")
      Filename = Filename &amp; "_POID_" &amp; poid &amp; ".pdf"
      pdfurl = dropBoxStorage.GetFileSystemObjectUrl(Filename, myfolder).ToString
      dbClose()
      pdfurl = pdfurl.Replace("+", "%2B")
      Response.Redirect(pdfurl)
       End Sub
  </code></pre>