Setting this property differs according to setting the TableTimeFormatType property:
If it is 10, then this is the time and the format formula is set to the TableTimeFormat in the form, for example "%d.%m.%Y %H:%M:%S.%T", where:
Any of the chars %d, %m, %Y, %M, ... can be omitted and so to omit the corresponding time item in the presentation.
Initial value is string "%d.%m.%Y %H:%M:%S".
The property is used only if the table mode is set.
var oTView = pMe.Items("../TrendView");
var nTableTimeFormat = oTView.TableTimeFormat; //reading
oTView.TableTimeFormat = "%d.%m.%Y %H:%M:%S"; //writing