Save Circle from Silverlight API to FeatureService edit

[YamunadeviRathinasamy]

I have a faturelayer type "esriGeometryPolygon". and I am using draw tool "DrawMode.Circle" to draw circle on Map from Silverlight API and If I try to save the circle to my featurelayer using FeatureLayer.SaveEdits() methods which is not working.

when I check the geometry passed from UI is Ring[0]={point[0]={x1,y1},point[1]={x1,y1}}.
If I draw circle from ArcMap and it saves n number of points creating a polygon in SQL Database.

[YamunadeviRathinasamy]

I resolved this by applying Simplify and save the resulted geometry to polygon featureLayer. works fine.