Hi ,
Please refer to the attached sample that demonstrates to plot the chart with DateTime on X axis and aggregated value on te Y axis.
http://websamples.syncfusion.com/samples/Chart.Windows/F73944/main.htmIn this sample the first DataGridView shows the random data values and second DataGridView shows the DateTime and the aggregated values. We can plot the chart by using the data values of second DataGridView.
Please refer to the sample and let me know if this helps.
Regards,
Nagaraj