private _sortDataSource2(argument = "submissionDate"): void {
		this.dataSourceFilteredSorted.sort((firstItem, secondItem) => {
			let sortByTime = argument == "submissionDate";

			let firstItemRepresentation = sortByTime ? DateUtils.dateTimeFromText(firstItem["submissionDate"]).valueOf() : firstItem[argument];
			let secondItemRepresentation = sortByTime ? DateUtils.dateTimeFromText(firstItem["submissionDate"]).valueOf() : secondItem[argument];

			return firstItemRepresentation - secondItemRepresentation;
		})
	}