Hello.
Here is scenario:
Data source consists of n columns.
GGC consists of n-2 visible columns(subset). The two remaining columns represent condition by which all text in the row is bold by forming logical and (conjunction) expression.
It seem as example at https://help.syncfusion.com/aspnet-classic/grid/look-and-feel Conditional Formatting with logical operators.
GridConditionalFormatDescriptor gcfd1 = new GridConditionalFormatDescriptor();
gcfd1.Name = "Criteria1";
gcfd1.Expression = "[n]=2 && [n-1]=0"; // This is expression too and it does not work.
gcfd1.Expression = "[n]=2"
// This works.
OR
gcfd1.Expression = "[n-1]=0"
// This works.
GridGroupingControl1.TableDescriptor.ConditionalFormats.Add(gcfd1); // DOES THIS BY ADDING EXPRESSIONS SIMULATES LOGICAL AND?
All in all I find documentation very very lacking and I have to rely on debugger (btw. VS debugger is nothing to write home about) and trial-and-error to get things done.