Added code for treemap

Author: Sushma-SF4796

Charts/Create-treemap-chart/.NET/Create-treemap-chart/Program.cs

@@ -12,7 +12,56 @@ static void Main(string[] args)
             //Create a new Word document.
             using (WordDocument document = new WordDocument())
             {
-                
+                // Add a section & a paragraph to the document.
+                IWSection section = document.AddSection();
+                IWParagraph paragraph = section.AddParagraph();
+
+                // Create and append TreeMap chart to the paragraph.
+                WChart chart = paragraph.AppendChart(446, 270);
+                chart.ChartType = OfficeChartType.TreeMap;
+
+                // Set chart title.
+                chart.ChartTitle = "Food Sales - Treemap Chart";
+
+                // Set headers.
+                chart.ChartData.SetValue(1, 1, "Meal");
+                chart.ChartData.SetValue(1, 2, "Category");
+                chart.ChartData.SetValue(1, 3, "Item");
+                chart.ChartData.SetValue(1, 4, "Sales");
+
+                // Add data rows.
+                string[,] data = {
+                {"Breakfast", "Beverage", "coffee", "20"},
+                {"Breakfast", "Beverage", "tea", "9"},
+                {"Breakfast", "Food", "waffles", "12"},
+                {"Breakfast", "Food", "pancakes", "35"},
+                {"Breakfast", "Food", "eggs", "24"},
+                {"Lunch", "Beverage", "coffee", "10"},
+                {"Lunch", "Beverage", "iced tea", "45"},
+                {"Lunch", "Food", "soup", "16"},
+                {"Lunch", "Food", "sandwich", "36"},
+                {"Lunch", "Food", "salad", "70"},
+                {"Lunch", "Food", "pie", "45"},
+                {"Lunch", "Food", "cookie", "25"}
+            };
+
+                for (int i = 0; i < data.GetLength(0); i++)
+                {
+                    chart.ChartData.SetValue(i + 2, 1, data[i, 0]);
+                    chart.ChartData.SetValue(i + 2, 2, data[i, 1]);
+                    chart.ChartData.SetValue(i + 2, 3, data[i, 2]);
+                    chart.ChartData.SetValue(i + 2, 4, int.Parse(data[i, 3]));
+                }
+
+                chart.DataRange = chart.ChartData[2, 1, 13, 4];
+                // Set DataLabels.
+                IOfficeChartSerie serie = chart.Series[0];
+                serie.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;
+
+                // Set legend.
+                chart.HasLegend = true;
+                chart.Legend.Position = OfficeLegendPosition.Bottom;
+
                 using (FileStream outputFileStream = new FileStream(Path.GetFullPath(@"Output/Output.docx"), FileMode.Create, FileAccess.ReadWrite))
                 {
                     //Save the Word document to the file stream.