Hi Wen,
Thanks for the update.
You can able to achieve your requirement using ChartInterior and ChartArea BackInterior properties in Chartcontrol.
The following code snippet which illustrates how to set the chart interior color as white.
this.chartControl1.ChartInterior = new Syncfusion.Drawing.BrushInfo(Color.Transparent);
this.chartControl1.BackInterior = new Syncfusion.Drawing.BrushInfo(Color.White);
this.chartControl1.ChartArea.BackInterior = new Syncfusion.Drawing.BrushInfo(Color.White);
You can able to set the boundery of the ChartArea using BorderStyle property in ChartControl.
The following code snippet which illustrates how to set the boundery of the ChartArea in ChartControl.
this.chartControl1.ChartArea.BorderStyle = BorderStyle.FixedSingle;
Please refer the attached sample.
http://websamples.syncfusion.com/samples/Chart.Windows/F63599_1/main.htmPlease let me know if this helps.
Thanks and Regards,
Rashidha.