InMemoryFeatureLayer inMemoryLayer = new InMemoryFeatureLayer();
                inMemoryLayer.Open();
                inMemoryLayer.Columns.Add(new FeatureSourceColumn("ColumnName"));

                Feature polygonFeature = new Feature(BaseShape.CreateShapeFromWellKnownData("POLYGON((10 60,40 70,30 85, 10 60))"));
                polygonFeature.ColumnValues.Add("ColumnName", "Polygon");

                inMemoryLayer.InternalFeatures.Add("Polygon", polygonFeature);

                Feature feature1 = new Feature(BaseShape.CreateShapeFromWellKnownData("POINT(12 20)"));
                feature1.ColumnValues.Add("ColumnName", "feature1");

                Feature feature2 = new Feature(BaseShape.CreateShapeFromWellKnownData("POINT(70 20)"));
                feature2.ColumnValues.Add("ColumnName", "Feature2");

                inMemoryLayer.InternalFeatures.Add(feature1);
                inMemoryLayer.InternalFeatures.Add(feature2);

                inMemoryLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle.FillSolidBrush.Color = GeoColor.FromArgb(100, GeoColor.StandardColors.RoyalBlue);
                inMemoryLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle.OutlinePen.Color = GeoColor.StandardColors.Blue;
                inMemoryLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.SymbolPen = new GeoPen(GeoColor.FromArgb(255, GeoColor.StandardColors.Green), 8);
                inMemoryLayer.ZoomLevelSet.ZoomLevel01.DefaultTextStyle = TextStyles.CreateSimpleTextStyle("ColumnName", "Arial", 8, DrawingFontStyles.Bold, GeoColor.FromArgb(255, 91, 91, 91));
                inMemoryLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;