D3 data table query
问题 I want to create an expandable table. Suppose I have following records in table: Sr.No Type 1 Planets 1.1 Mercury 1.2 Earth 1.3 Venus 2 Colors 2.1 Yellow 2.2 Green Default view should be : Sr.No Type 1 Planets 2 Colors and when one clicks on Planet row, it should expand as: Sr.No Type 1 Planets 1.1 Mercury 1.2 Earth 1.3 Venus 2 Colors and on clicking once again it should rollback to original state. Kindly guide me or point me to some reference. Also,if this is not possible, is there anything