How to generate a chart from an Excel sheet?

Question

I can generate an Excel file when I pass a datatable into the below function:

public static void ExportDataTableToExcel(DataTable dt, string fil         


        

Answer 1

Take a look at the tutorial here (one of the first Google hits).

It very clearly describe how to make a simple chart in Excel from C# code.

The general idea is like this:

// Add chart.
var charts = worksheet.ChartObjects() as
    Microsoft.Office.Interop.Excel.ChartObjects;
var chartObject = charts.Add(60, 10, 300, 300) as
    Microsoft.Office.Interop.Excel.ChartObject;
var chart = chartObject.Chart;

// Set chart range.
var range = worksheet.get_Range(topLeft, bottomRight);
chart.SetSourceData(range);

// Set chart properties.
chart.ChartType = Microsoft.Office.Interop.Excel.XlChartType.xlLine;
chart.ChartWizard(Source: range,
    Title: graphTitle,
    CategoryTitle: xAxis,
    ValueTitle: yAxis);