/// <summary>
        /// Delete selected record(s)
        /// </summary>
        /// <returns></returns>
        public async System.Threading.Tasks.Task DeleteRecords()
        {
            // Display confirm message with Yes/No option
            MessageDialog dialog = new MessageDialog(loader.GetString("ConfirmDelete"));

            dialog.Commands.Add(new UICommand(loader.GetString("Yes")));
            dialog.Commands.Add(new UICommand(loader.GetString("No")));
            dialog.DefaultCommandIndex = 1;
            dialog.CancelCommandIndex  = 1;
            var result = await dialog.ShowAsync();

            // If user clicks No, then do nothing.
            if (result.Label == loader.GetString("No"))
            {
                return;
            }

            // Otherwise delete recrod(s). Show progress ring first.
            progressRing.IsActive = true;

            // Then delete record(s)
            foreach (ViewData item in lvList.SelectedItems)
            {
                Entity record = new Entity();
                record.LogicalName = (string.IsNullOrEmpty(item.ActivityTypeName)) ? (cbLookFor.SelectedItem as EntityMetadataEx).EntityMetadata.LogicalName : item.ActivityTypeName;
                record.Id          = item.Id;
                await CRMHelper.DeleteRecord(record);
            }

            // Finally Refresh data
            await RefreshList();
        }
        /// <summary>
        /// This method deletes a note record
        /// </summary>
        /// <returns></returns>
        public async System.Threading.Tasks.Task DeleteRecords()
        {
            // Show download message.
            var result = await Util.ShowConfirmMessage(loader.GetString("ConfirmDeleteNote"), loader.GetString("Yes"), loader.GetString("No"), 1);

            if (!result)
            {
                return;
            }

            progressRing.IsActive = true;

            // Delete selected notes.
            foreach (Annotation note in lvList.SelectedItems)
            {
                await CRMHelper.DeleteRecord(note);
            }

            progressRing.IsActive = false;
        }
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        /// <summary>
        /// Delete current record
        /// </summary>
        /// <returns></returns>
        public async System.Threading.Tasks.Task <bool> DeleteRecord()
        {
            // Display confirm message with Yes/No option
            var result = await Util.ShowConfirmMessage(loader.GetString("ConfirmDelete"), loader.GetString("Yes"), loader.GetString("No"), 1);

            // If user click no, then do nothing.
            if (!result)
            {
                return(false);
            }

            // Otherwise delete recrod(s). Show progress ring first.
            progressRing.IsActive = true;

            // Then delete
            await CRMHelper.DeleteRecord(Record);

            progressRing.IsActive = false;

            // Let page handle navigation
            return(true);
        }