Generate excel chart from smart marker aspose - excel

Question

I have an excel template with following two columns period and points, trend.period and trend.points are aspose smart marker that represent the data.
Period Points
&=trend.period &=trend.points
The table generated is below.
Period Points
4Q'14 27
1Q'15 0
2Q'15 0
3Q'15 0
4Q'15 200
It's easy to generate column chart for table 2, how to generate the same chart for table 1 with smart marker?

Answer 1

You may accomplish the task using Aspose.Cells' Smart Markers feature. All you need to do is create Named ranges based on your Smart Markers inserted into the cells. I have written a sample code using Aspose.Cells APIs for your requirements. Please refer to it and you may add/update the code segment accordingly for your needs.
e.g
Sample code:
DataTable dt = new DataTable("Trend");
dt.Columns.Add("Period", typeof(string));
dt.Columns.Add("Points", typeof(int));
DataRow row = dt.NewRow();
row[0] = "4Q'14";
row[1] = 27;
dt.Rows.Add(row);
row = dt.NewRow();
row[0] = "1Q'15";
row[1] = 0;
dt.Rows.Add(row);
row = dt.NewRow();
row[0] = "2Q'15";
row[1] = 0;
dt.Rows.Add(row);
row = dt.NewRow();
row[0] = "3Q'15";
row[1] = 0;
dt.Rows.Add(row);
row = dt.NewRow();
row[0] = "4Q'15";
row[1] = 200;
dt.Rows.Add(row);
WorkbookDesigner wd = new WorkbookDesigner();
//Create a designer workbook
Workbook workbook = new Workbook();
Worksheet worksheet = workbook.Worksheets[0];
worksheet.Cells["A1"].PutValue("Period");
worksheet.Cells["A2"].PutValue("&=Trend.Period");
worksheet.Cells["B1"].PutValue("Points");
worksheet.Cells["B2"].PutValue("&=Trend.Points");
Range range1 = worksheet.Cells.CreateRange("A2:A2");
range1.Name = "RANGE1";
Range range2 = worksheet.Cells.CreateRange("B2:B2");
range2.Name = "RANGE2";
wd.Workbook = workbook;
wd.SetDataSource(dt);
wd.Process();
//Create chart
int chartIndex = worksheet.Charts.Add(ChartType.Column, 5, 2, 29, 10);
Chart chart = worksheet.Charts[chartIndex];
//Obtain the updated ranges after processing smart markers
var r1 = workbook.Worksheets.GetRangeByName("RANGE1");
var r2 = workbook.Worksheets.GetRangeByName("RANGE2");
MessageBox.Show(r2.RefersTo);
//Add the nseries collection to a chart
chart.NSeries.Add(r2.RefersTo, true);
//Get or set the range of category axis values
chart.NSeries.CategoryData = r1.RefersTo;
chart.NSeries.IsColorVaried = true;
wd.Workbook.Save("e:\\test2\\out1chart1.xlsx");
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