As to the rows, you can either set all the rows height to a desired value:
radGridView1.TableElement.RowHeight = 30;
or you can allow the grid to automatically set the needed row size:
radGridView1.AutoSizeRows = true;
I hope that you find this information useful. Should you have any other questions, do not hesitate to contact us.
Check out Telerik Analytics, the service which allows developers to discover app usage patterns, analyze user data, log exceptions, solve problems and profile application performance at run time. Watch the videos and start improving your app based on facts, not hunches.