/// <summary>
/// Pull training photos from a SharePoint list and add them as a dictionary to be used for training purposess.
/// </summary>
/// <returns>Dictionary organized by person key of each person with their photos attached.</returns>
public Dictionary<string, PhotoPerson> getTrainingPhotos()
{
Dictionary<string, PhotoPerson> trainingPhotos = new Dictionary<string, PhotoPerson>();
using (ClientContext context = Login(SharePointURL))
{
try
{
var list = context.Web.GetList(TrainingListURL);
var query = CamlQuery.CreateAllItemsQuery();
var result = list.GetItems(query);
ListItemCollection items = list.GetItems(query);
context.Load(items, includes => includes.Include(
i => i[TrainingPersonIdColumn],
i => i[TrainingFileColumn],
i => i[TrainingIdColumn]));
//now you get the data
context.ExecuteQuery();
//here you have list items, but not their content (files). To download file
//you'll have to do something like this:
foreach (ListItem item in items)
{
PhotoPerson person = null;
if (item[TrainingPersonIdColumn] != null)
{
string fullName = (string)item[TrainingPersonIdColumn];
// look for existing person
if (trainingPhotos.ContainsKey(fullName))
{
person = trainingPhotos[fullName];
}
else
{
person = new PhotoPerson();
person.Name = fullName;
person.ID = item.Id;
}
//get the URL of the file you want:
var fileRef = item[TrainingFileColumn];
//get the file contents:
FileInformation fileInfo = Microsoft.SharePoint.Client.File.OpenBinaryDirect(context, fileRef.ToString());
using (var memory = new MemoryStream())
{
byte[] buffer = new byte[1024 * 64];
int nread = 0;
while ((nread = fileInfo.Stream.Read(buffer, 0, buffer.Length)) > 0)
{
memory.Write(buffer, 0, nread);
}
memory.Seek(0, SeekOrigin.Begin);
Photo photo = new Photo();
photo.ID = item.Id.ToString();
photo.Image = memory.ToArray();
person.Photos.Add(photo);
}
trainingPhotos.Add(fullName, person);
}
}
}
catch (Exception e)
{
throw;
}
}
return trainingPhotos;
}
/// <summary>
/// Used for OCR tagger - pulls a generic list of photos with IDs.
/// </summary>
/// <returns>List of photos</returns>
public List<Photo> getPhotosToTag()
{
List<Photo> photos = new List<Photo>();
using (ClientContext context = Login(SharePointURL))
{
try
{
var list = context.Web.GetList(PhotosToTagURL);
var query = CamlQuery.CreateAllItemsQuery();
var result = list.GetItems(query);
ListItemCollection items = list.GetItems(query);
context.Load(items, includes => includes.Include(
i => i[PhotoFileColumn],
i => i[PhotoIdColumn]));
//now you get the data
context.ExecuteQuery();
//here you have list items, but not their content (files). To download file
//you'll have to do something like this:
foreach (ListItem item in items)
{
Photo photo = new Photo();
//get the URL of the file you want:
var fileRef = item[PhotoFileColumn];
//get the file contents:
FileInformation fileInfo = Microsoft.SharePoint.Client.File.OpenBinaryDirect(context, fileRef.ToString());
using (var memory = new MemoryStream())
{
byte[] buffer = new byte[1024 * 64];
int nread = 0;
while ((nread = fileInfo.Stream.Read(buffer, 0, buffer.Length)) > 0)
{
memory.Write(buffer, 0, nread);
}
memory.Seek(0, SeekOrigin.Begin);
photo.ID = item.Id.ToString();
photo.Image = memory.ToArray();
photos.Add(photo);
}
}
}
catch (Exception e)
{
throw;
}
}
return photos;
}
