group.cs

private GroupBox GenerateGroupFromQuestion(JToken question)
		{
			GroupBox      box = new GroupBox {Text = (string) question["text"], Dock = DockStyle.Fill, Tag = question};
			questionGroups.Add(box);
			List<Control> controls;
			Enum.TryParse((string) question["questiontype"], out QuestionType qType);
			switch (qType)
			{
				case QuestionType.MultipleChoiceExclusive:
				{
					controls = GenerateControlArray<RadioButton>((int) question["optionsnum"],
																 question["controltext"]
																	.Select(t => (string) t).ToArray());
					break;
				}
				case QuestionType.MultipleChoiceNotExclusive:
				{
					controls = GenerateControlArray<CheckBox>((int) question["optionsnum"],
															  question["controltext"]
																 .Select(t => (string) t).ToArray());
					break;
				}
				case QuestionType.YesNo:
				{
					controls = new List<Control>
							   {
								   new RadioButton
								   {
									   Text = "Yes",
									   Dock = DockStyle.Fill
								   },
								   new RadioButton
								   {
									   Text = "No",
									   Dock = DockStyle.Fill
								   }
							   };

					break;
				}
				case QuestionType.FreeComment:
				{
					controls = new List<Control>
							   {
								   new RichTextBox
								   {
									   Dock = DockStyle.Fill
								   }
							   };
					break;
				}
				default:
				{
					throw new ArgumentOutOfRangeException();
				}
			}

			TableLayoutPanel layout = new TableLayoutPanel
									  {
										  Dock         = DockStyle.Fill,
										  RowCount     = Controls.Count / 5,
										  ColumnCount  = Controls.Count <= 5 ? Controls.Count : 5,
										  MinimumSize  = new Size(MinWidth, Controls.Count / 5 * RowHeight),
										  AutoSizeMode = AutoSizeMode.GrowAndShrink,
										  AutoSize     = true
									  };
			box.Controls.Add(layout);
			for (int i = 0; i < controls.Count; i++)
			{
				int column = i % 5;
				int row    = i / 5;
				layout.Controls.Add(controls[i], column, row);
				layout.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 50));
			}

			box.MinimumSize = new Size(layout.MinimumSize.Width  + WidthOffset,
									   layout.MinimumSize.Height + GroupBoxOffset);
			return box;
		}