/// <summary>
        /// Binds the grid for signature document templates.
        /// </summary>
        private void BindGrid()
        {
            var queryable = new SignatureDocumentTemplateService( new RockContext() ).Queryable();

            SortProperty sortProperty = gSignatureDocumentTemplate.SortProperty;
            if ( sortProperty != null )
            {
                if ( sortProperty.Property == "Documents" )
                {
                    if ( sortProperty.Direction == SortDirection.Ascending )
                    {
                        queryable = queryable.OrderBy( a => a.Documents.Count() );
                    }
                    else
                    {
                        queryable = queryable.OrderByDescending( a => a.Documents.Count() );
                    }
                }
                queryable = queryable.Sort( sortProperty );
            }
            else
            {
                queryable = queryable.OrderBy( a => a.Name );
            }

            var types = new List<SignatureDocumentTemplate>();
            foreach( var type in queryable )
            {
                if ( type.IsAuthorized( Authorization.VIEW, CurrentPerson))
                {
                    types.Add( type );
                }
            }

            gSignatureDocumentTemplate.DataSource = types
                .Select( a =>
                new
                {
                    a.Id,
                    a.Name,
                    a.Description,
                    BinaryFileType = a.BinaryFileType.Name,
                    a.ProviderTemplateKey,
                    Documents = a.Documents.Count()
                } )
                .ToList();
            gSignatureDocumentTemplate.DataBind();
        }