LineChart 以连接的数据点显示数据，适用于展示随时间变化的趋势。
示例
准备数据
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)" },
};
定义范围并创建图表
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);
自定义
线条样式
// 自定义每个系列的线条外观
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;坐标轴配置
chart.ShowHorizontalGuideLines = true; // 默认值
chart.ShowVerticalGuideLines = false; // 默认值