/// <summary>
/// Load list with all documents
/// </summary>
/// <returns></returns>
public async Task LoadDocumentList()
{
IsLoading = true;
var loadedDocuments = await GetDocumentList();
//Remove existing items;
DocumentList.RemoveAll(x => loadedDocuments.Select(l => l.Id).Contains(x.Id));
DocumentList.AddRange(loadedDocuments);
DocumentList.Revision = loadedDocuments.Revision;
IsLoading = false;
}