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Update CreatePieChartWithLeaderLines.cs
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‎Examples/CSharp/Articles/ManageChartsAndShapes/CreatePieChartWithLeaderLines.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using Aspose.Cells.Charts;
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using Aspose.Cells.Rendering;
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namespace Aspose.Cells.Examples.CSharp.Articles.ManageChartsAndShapes
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{
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public class CreatePieChartWithLeaderLines
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{
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public static void Run()
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{
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// ExStart:CreateWorkbook
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// The path to the documents directory.
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string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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// Create an instance of Workbook in XLSX format
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Workbook workbook = new Workbook(FileFormatType.Xlsx);
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// Access the first worksheet
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Worksheet worksheet = workbook.Worksheets[0];
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// Add two columns of data
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worksheet.Cells["A1"].PutValue("Retail");
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worksheet.Cells["A2"].PutValue("Services");
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worksheet.Cells["A3"].PutValue("Info & Communication");
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worksheet.Cells["A4"].PutValue("Transport Equip");
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worksheet.Cells["A5"].PutValue("Construction");
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worksheet.Cells["A6"].PutValue("Other Products");
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worksheet.Cells["A7"].PutValue("Wholesale");
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worksheet.Cells["A8"].PutValue("Land Transport");
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worksheet.Cells["A9"].PutValue("Air Transport");
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worksheet.Cells["A10"].PutValue("Electric Appliances");
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worksheet.Cells["A11"].PutValue("Securities");
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worksheet.Cells["A12"].PutValue("Textiles & Apparel");
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worksheet.Cells["A13"].PutValue("Machinery");
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worksheet.Cells["A14"].PutValue("Metal Products");
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worksheet.Cells["A15"].PutValue("Cash");
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worksheet.Cells["A16"].PutValue("Banks");
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worksheet.Cells["B1"].PutValue(10.4);
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worksheet.Cells["B2"].PutValue(5.2);
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worksheet.Cells["B3"].PutValue(6.4);
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worksheet.Cells["B4"].PutValue(10.4);
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worksheet.Cells["B5"].PutValue(7.9);
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worksheet.Cells["B6"].PutValue(4.1);
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worksheet.Cells["B7"].PutValue(3.5);
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worksheet.Cells["B8"].PutValue(5.7);
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worksheet.Cells["B9"].PutValue(3);
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worksheet.Cells["B10"].PutValue(14.7);
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worksheet.Cells["B11"].PutValue(3.6);
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worksheet.Cells["B12"].PutValue(2.8);
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worksheet.Cells["B13"].PutValue(7.8);
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worksheet.Cells["B14"].PutValue(2.4);
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worksheet.Cells["B15"].PutValue(1.8);
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worksheet.Cells["B16"].PutValue(10.1);
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// Create a pie chart and add it to the collection of charts
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int id = worksheet.Charts.Add(ChartType.Pie, 3, 3, 23, 13);
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// Access newly created Chart instance
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Chart chart = worksheet.Charts[id];
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// Set series data range
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chart.NSeries.Add("B1:B16", true);
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// Set category data range
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chart.NSeries.CategoryData = "A1:A16";
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// Turn off legend
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chart.ShowLegend = false;
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// Access data labels
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DataLabels dataLabels = chart.NSeries[0].DataLabels;
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// Turn on category names
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dataLabels.ShowCategoryName = true;
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// Turn on percentage format
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dataLabels.ShowPercentage = true;
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// Set position
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dataLabels.Position = LabelPositionType.OutsideEnd;
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// Set separator
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dataLabels.Separator = DataLablesSeparatorType.Comma;
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// ExEnd:CreateWorkbook
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// ExStart:TurnOnLeaderLines
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// Turn on leader lines
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chart.NSeries[0].HasLeaderLines = true;
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// Calculete chart
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chart.Calculate();
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// You need to move DataLabels a little leftward or rightward depending on their position to show leader lines
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int DELTA = 100;
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for (int i = 0; i < chart.NSeries[0].Points.Count; i++)
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{
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int X = chart.NSeries[0].Points[i].DataLabels.X;
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// If it is greater than 2000, then move the X position a little right otherwise move the X position a little left
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if (X > 2000)
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chart.NSeries[0].Points[i].DataLabels.X = X + DELTA;
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else
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chart.NSeries[0].Points[i].DataLabels.X = X - DELTA;
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}
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// ExEnd:TurnOnLeaderLines
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// ExStart:SaveChartInImageAndWorkbookInXLSX
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// In order to save the chart image, create an instance of ImageOrPrintOptions
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ImageOrPrintOptions anOption = new ImageOrPrintOptions();
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// Set image format
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anOption.ImageType = Drawing.ImageType.Png;
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// Set resolution
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anOption.HorizontalResolution = 200;
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anOption.VerticalResolution = 200;
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// Render chart to image
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chart.ToImage(dataDir + "output_out.png", anOption);
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// Save the workbook to see chart inside the Excel
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workbook.Save(dataDir + "output_out.xlsx");
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// ExEnd:SaveChartInImageAndWorkbookInXLSX
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}
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}
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}
1+
using System;
2+
using System.Collections.Generic;
3+
using System.Linq;
4+
using System.Text;
5+
using Aspose.Cells.Charts;
6+
using Aspose.Cells.Rendering;
7+
8+
namespace Aspose.Cells.Examples.CSharp.Articles.ManageChartsAndShapes
9+
{
10+
public class CreatePieChartWithLeaderLines
11+
{
12+
public static void Run()
13+
{
14+
// ExStart:CreateWorkbook
15+
// The path to the documents directory.
16+
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
17+
18+
// Create an instance of Workbook in XLSX format
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Workbook workbook = new Workbook(FileFormatType.Xlsx);
20+
21+
// Access the first worksheet
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Worksheet worksheet = workbook.Worksheets[0];
23+
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// Add two columns of data
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worksheet.Cells["A1"].PutValue("Retail");
26+
worksheet.Cells["A2"].PutValue("Services");
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worksheet.Cells["A3"].PutValue("Info & Communication");
28+
worksheet.Cells["A4"].PutValue("Transport Equip");
29+
worksheet.Cells["A5"].PutValue("Construction");
30+
worksheet.Cells["A6"].PutValue("Other Products");
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worksheet.Cells["A7"].PutValue("Wholesale");
32+
worksheet.Cells["A8"].PutValue("Land Transport");
33+
worksheet.Cells["A9"].PutValue("Air Transport");
34+
worksheet.Cells["A10"].PutValue("Electric Appliances");
35+
worksheet.Cells["A11"].PutValue("Securities");
36+
worksheet.Cells["A12"].PutValue("Textiles & Apparel");
37+
worksheet.Cells["A13"].PutValue("Machinery");
38+
worksheet.Cells["A14"].PutValue("Metal Products");
39+
worksheet.Cells["A15"].PutValue("Cash");
40+
worksheet.Cells["A16"].PutValue("Banks");
41+
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worksheet.Cells["B1"].PutValue(10.4);
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worksheet.Cells["B2"].PutValue(5.2);
44+
worksheet.Cells["B3"].PutValue(6.4);
45+
worksheet.Cells["B4"].PutValue(10.4);
46+
worksheet.Cells["B5"].PutValue(7.9);
47+
worksheet.Cells["B6"].PutValue(4.1);
48+
worksheet.Cells["B7"].PutValue(3.5);
49+
worksheet.Cells["B8"].PutValue(5.7);
50+
worksheet.Cells["B9"].PutValue(3);
51+
worksheet.Cells["B10"].PutValue(14.7);
52+
worksheet.Cells["B11"].PutValue(3.6);
53+
worksheet.Cells["B12"].PutValue(2.8);
54+
worksheet.Cells["B13"].PutValue(7.8);
55+
worksheet.Cells["B14"].PutValue(2.4);
56+
worksheet.Cells["B15"].PutValue(1.8);
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worksheet.Cells["B16"].PutValue(10.1);
58+
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// Create a pie chart and add it to the collection of charts
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int id = worksheet.Charts.Add(ChartType.Pie, 3, 3, 23, 13);
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// Access newly created Chart instance
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Chart chart = worksheet.Charts[id];
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// Set series data range
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chart.NSeries.Add("B1:B16", true);
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// Set category data range
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chart.NSeries.CategoryData = "A1:A16";
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// Turn off legend
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chart.ShowLegend = false;
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// Access data labels
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DataLabels dataLabels = chart.NSeries[0].DataLabels;
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// Turn on category names
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dataLabels.ShowCategoryName = true;
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// Turn on percentage format
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dataLabels.ShowPercentage = true;
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// Set position
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dataLabels.Position = LabelPositionType.OutsideEnd;
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// Set separator
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dataLabels.SeparatorType = DataLabelsSeparatorType.Comma;
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// ExEnd:CreateWorkbook
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// ExStart:TurnOnLeaderLines
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// Turn on leader lines
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chart.NSeries[0].HasLeaderLines = true;
93+
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// Calculete chart
95+
chart.Calculate();
96+
97+
// You need to move DataLabels a little leftward or rightward depending on their position to show leader lines
98+
int DELTA = 100;
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for (int i = 0; i < chart.NSeries[0].Points.Count; i++)
100+
{
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int X = chart.NSeries[0].Points[i].DataLabels.X;
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// If it is greater than 2000, then move the X position a little right otherwise move the X position a little left
103+
if (X > 2000)
104+
chart.NSeries[0].Points[i].DataLabels.X = X + DELTA;
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else
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chart.NSeries[0].Points[i].DataLabels.X = X - DELTA;
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}
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// ExEnd:TurnOnLeaderLines
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// ExStart:SaveChartInImageAndWorkbookInXLSX
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// In order to save the chart image, create an instance of ImageOrPrintOptions
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ImageOrPrintOptions anOption = new ImageOrPrintOptions();
113+
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// Set image format
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anOption.ImageType = Drawing.ImageType.Png;
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// Set resolution
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anOption.HorizontalResolution = 200;
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anOption.VerticalResolution = 200;
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// Render chart to image
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chart.ToImage(dataDir + "output_out.png", anOption);
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// Save the workbook to see chart inside the Excel
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workbook.Save(dataDir + "output_out.xlsx");
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// ExEnd:SaveChartInImageAndWorkbookInXLSX
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}
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}
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}

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