Excel Epplus

下面是Excel中写入一个折线图；两条折线，其中第二条折线的Y轴为次坐标轴(右边轴)；
Excel单元格格式设置 :
worksheet.Cells[row,colum].Style.Numberformat.Format = "@";单元格类型设置为文本类型
worksheet.Column(colum).Style.Numberformat.Format="@"设置列类型为文本类型

@"yyyy-mm-dd";//日期型格式

worksheet.Cells[1,1].Style.Font.Name="正楷"；//设置字体

worksheet.Cells[1,1].Style.Font.Size=14；//设置字体大小

worksheet.Row(row).Style.Numberformat.Format="@"设置行类型为文本类型
worksheet.Cells[""].Style.Font.Color.Indexed=5 设置单元格中字体的颜色或者 worksheet.Cells[1, 1].Style.Font.Color.SetColor(Color.White);
下图为颜色对应的数字

一组单元格 = worksheet.Cells[起始行, 起始列, 终止行, 终止列]
package.Save()；保存Excel；package.SaveAs(Path);将Excel保存到Path；其中Path带文件名

worksheet.Cells[row,colum].Style.Numberformat.Format = "@";单元格类型设置为文本类型

worksheet.View.ShowGridLines = false；去除sheet的网格线

public void GetToChart()
{
FileInfo newFile = new FileInfo(@"D:\C#程序\代码实验室\Excel\x.xlsx");

using (ExcelPackage package = new ExcelPackage(newFile))
{
ExcelWorksheet worksheet = package.Workbook.Worksheets[1];
#region 制作表格
worksheet.Cells.Style.WrapText = true;
worksheet.Cells[1, 1].Value = "2018/02/01";
worksheet.Cells[1, 2].Value = "价格";
worksheet.Cells[1, 3].Value = "销量";

worksheet.Cells[2, 1].Value = "2018/02/02";
worksheet.Cells[2, 2].Value = 56;
worksheet.Cells[2, 3].Value = 100;

worksheet.Cells[3, 1].Value = "2018/02/03";
worksheet.Cells[3, 2].Value = 45;
worksheet.Cells[3, 3].Value = 150;

worksheet.Cells[4, 1].Value = "2018/02/04";
worksheet.Cells[4, 2].Value = 38;
worksheet.Cells[4, 3].Value = 130;

worksheet.Cells[5, 1].Value = "2018/02/05";
worksheet.Cells[5, 2].Value = 22;
worksheet.Cells[5, 3].Value = 200; 
#endregion
#region 表格样式
using (ExcelRange range = worksheet.Cells[1, 1, 5, 3])
{
range.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
range.Style.VerticalAlignment = ExcelVerticalAlignment.Center;
}

using (ExcelRange range = worksheet.Cells[1, 1, 1, 3])
{
range.Style.Font.Bold = true;
range.Style.Font.Color.SetColor(Color.White);
range.Style.Font.Name = "微软雅黑";
range.Style.Font.Size = 12;
range.Style.Fill.PatternType = ExcelFillStyle.Solid;
range.Style.Fill.BackgroundColor.SetColor(Color.FromArgb(128, 128, 128));
} 
#endregion

ExcelChart chart = worksheet.Drawings.AddChart("chart", eChartType.Line);//设置图标类型


#region 换坐标值

ExcelRange er = worksheet.Cells[2, 2, 5, 2];
#endregion

var chartType1 = chart.PlotArea.ChartTypes.Add(eChartType.Line);// 定义一个折线类型chart
chartType1.UseSecondaryAxis = false;//第二坐标
var serie1 = (chartType1.Series.Add(worksheet.Cells[2, 3, 5, 3], worksheet.Cells[2, 1, 5, 1]) as ExcelChartSerie);//定义序列

var chartType2 = chart.PlotArea.ChartTypes.Add(eChartType.Line);// 定义一个折线类型chart
chartType2.UseSecondaryAxis = true;//第二坐标
var serie2 = (chartType2.Series.Add(worksheet.Cells[2, 2, 5, 2], worksheet.Cells[2, 1, 5, 1]) as ExcelChartSerie);//定义序列

serie1.HeaderAddress = worksheet.Cells[1, 3];
serie2.HeaderAddress = worksheet.Cells[1, 2];
chart.SetPosition(150, 10);
chart.SetSize(500, 300);
chart.Title.Text = "销量走势";
chart.Title.Font.Color = Color.FromArgb(89, 89, 89);
chart.Title.Font.Size = 15;
chart.Title.Font.Bold = true;
chart.Style = eChartStyle.Style15;
chart.Legend.Border.LineStyle = eLineStyle.Solid;
chart.Legend.Border.Fill.Color = Color.FromArgb(217, 217, 217);

package.Save();
}
}

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