is it possible to edit the leftside of propertygrid in c#...

Is was wondering like CHill60, maybe you can explain what you want to achive - because your requirement sounds quite odd... The PropertyGrid control reflects over the object it is displaying and uses the name of the properties as reflected for the "left side". What you can do is controlling the behaviour and look of the properties by attributes like (Browsable, DefaultValue, ...). What you need is maybe the System.ComponentModel.DisplayName attribute to set the name for a property independend from it's implementation name. If you realy want to allow user editing of this names - I think you have a BIG missunderstanding of the PropertyGrid's purpose... Anyway - please explain better what you want, it's quite likely I can help (PropertyGrid veteran ;-))