Hi,
Thanks for using Syncfusion products,
GridConditionalFormatDescriptor is used to fromat the Grid Grouping Controll,but it does not support any predifined formula for finding the Max value in a particular column. Using sorting techniques we can find out the Maximum value and then we can apply the FormatDescriptor to the Max value.
Please refer the below code snippet which illustrates this,
gridConditionalFormatDescriptor1.Expression = "[ID]=" + no[0].ToString();
In the above code no[0] is a Maximum value.
Please refer the sample from the below link which illustrates the above,
http://websamples.syncfusion.com/samples/Grid.Windows/F68248/main.htmRegards,
S.Rajarajeswari