The LineChart displays data as connected points, useful for showing trends over time.

Example

Prepare Data

var sheet = grid.CurrentWorksheet;

sheet["A2"] = new object[,] {
    { null, 2008, 2009, 2010, 2011, 2012 },
    { "City 1", 3, 2, 4, 2, 6 },
    { "City 2", 7, 5, 3, 6, 4 },
    { "City 3", 13, 10, 9, 10, 9 },
    { "Total", "=SUM(B3:B5)", "=SUM(C3:C5)", "=SUM(D3:D5)",
      "=SUM(E3:E5)", "=SUM(F3:F5)" },
};

Define Ranges and Create Chart

var dataRange = sheet.Ranges["B3:F5"];
var serialNamesRange = sheet.Ranges["A3:A5"];
var categoryNamesRange = sheet.Ranges["B2:F2"];

sheet.AddHighlightRange(categoryNamesRange);
sheet.AddHighlightRange(serialNamesRange);
sheet.AddHighlightRange(dataRange);

var chart = new Chart.LineChart
{
    Location = new Graphics.Point(220, 160),
    Size = new Graphics.Size(400, 260),
    Title = "Line Chart Sample",
    DataSource = new WorksheetChartDataSource(sheet, serialNamesRange, dataRange)
    {
        CategoryNameRange = categoryNamesRange,
    },
};

sheet.FloatingObjects.Add(chart);

Customization

Line Styles

// Customize line appearance per series
chart.DataSerialStyles[0].LineColor = Graphics.SolidColor.SteelBlue;
chart.DataSerialStyles[0].LineWidth = 3f;
chart.DataSerialStyles[0].LineStyle = Graphics.LineStyles.Solid;

chart.DataSerialStyles[1].LineColor = Graphics.SolidColor.Coral;
chart.DataSerialStyles[1].LineStyle = Graphics.LineStyles.Dash;

Axis Configuration

chart.ShowHorizontalGuideLines = true;   // default
chart.ShowVerticalGuideLines = false;    // default

Related Topics

• Chart Overview — Chart base properties and data sources
• Area Chart — Filled area variant