单个Excel单元格列表中的EPPlus图表。怎么样？ [英] EPPlus chart from list of single excel cells. How?

问题描述

我想使用EPPlus从单个单元格列表中制作一张excel图表。假设我想要一个三块的馅饼，它们从单元格C4，C6和C8中获取其值。怎么样？

I want to make an excel chart, using EPPlus, from a list of single cells. Say I want a pie with three pieces getting their values from cells C4, C6 and C8. How?

这两次尝试均无效：

ExcelChart chart = ExcelWorksheet.Drawings.AddChart(myTitle, eChartType.Pie);
ExcelAddress values = myWorkSheet.Cells["C4;C6;C8"]; // => 'Invalid Address format'
ExcelAddress values = myWorkSheet.Cells["C4,C6,C8"]; // => No chart is made

那么，有可能吗？如果是这样，语法是什么？

So, is it possible? If so, what's the syntax?

推荐答案

以逗号分隔的单元格名称行是您想要的格式。您是否同时指定了x和y轴范围？也许在实际添加系列的地方显示代码。

The line with cell names separated by commas is the format you want. Did you specify both the x and y axis range? Maybe show your code where you actually add the series.

您应该使用 ExcelRange 而不是Address。像这样：

You should be using ExcelRange not Address. Like this:

[TestMethod]
public void Chart_From_Cells_Test()
{
    //http://stackoverflow.com/questions/29207020/epplus-chart-from-list-of-single-excel-cells-how
    var existingFile = new FileInfo(@"c:\temp\temp.xlsx");
    if (existingFile.Exists)
        existingFile.Delete();

    using (var pck = new ExcelPackage(existingFile))
    {
        var myWorkSheet = pck.Workbook.Worksheets.Add("Content");
        var ExcelWorksheet = pck.Workbook.Worksheets.Add("Chart");

        //Some data
        myWorkSheet.Cells["A1"].Value = "A";
        myWorkSheet.Cells["A2"].Value = 100; myWorkSheet.Cells["A3"].Value = 400; myWorkSheet.Cells["A4"].Value = 200; myWorkSheet.Cells["A5"].Value = 300; myWorkSheet.Cells["A6"].Value = 600; myWorkSheet.Cells["A7"].Value = 500;
        myWorkSheet.Cells["B1"].Value = "B";
        myWorkSheet.Cells["B2"].Value = 300; myWorkSheet.Cells["B3"].Value = 200; myWorkSheet.Cells["B4"].Value = 1000; myWorkSheet.Cells["B5"].Value = 600; myWorkSheet.Cells["B6"].Value = 500; myWorkSheet.Cells["B7"].Value = 200;

        ExcelRange values = myWorkSheet.Cells["B2,B4,B6"];
        ExcelRange xvalues = myWorkSheet.Cells["A2,A4,A6"];

        const string myTitle = "Chart 1";
        ExcelChart chart1 = ExcelWorksheet.Drawings.AddChart(myTitle, eChartType.Pie);
        chart1.Series.Add(values, xvalues);

        pck.Save();
    }
}

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