Excel图表+C# [英] Excel charts +C#

问题描述

我正在使用 excel 从 C# 中绘制图表，但我需要图表是一个彼此相关的系列而不是两个系列(当我选择一个具有两列数据的范围时)
任何人都可以帮助:

I am using excel to draw charts from c#, but i need the chart to be one series related to each other not two series (when i select a range that has two columns of data)
can any one help:

        xla.Visible = true; 
        Workbook wb = xla.Workbooks.Add(XlSheetType.xlWorksheet);
        Worksheet ws = (Worksheet)xla.ActiveSheet;

        // Now create the chart.
        ChartObjects chartObjs = (ChartObjects)ws.ChartObjects(Type.Missing);
        ChartObject chartObj = chartObjs.Add(100, 20, 300, 300);
        Chart xlChart = chartObj.Chart;
        Range rg = ws.get_Range("B2", "C17");
        xlChart.SetSourceData(chartRange, XlRowCol.xlColumns);

谢谢

推荐答案

我稍微清理了代码并添加了随机数据的生成，因此它应该自己运行.

I cleaned the code up a bit and added the generation of random data so this should run on its own.

Random random = new Random();
Microsoft.Office.Interop.Excel.Application xla = new Microsoft.Office.Interop.Excel.Application();
xla.Visible = true;
Workbook wb = xla.Workbooks.Add(XlSheetType.xlWorksheet);

Worksheet ws = (Worksheet)xla.ActiveSheet;

// Now create the chart.
ChartObjects chartObjs = (ChartObjects)ws.ChartObjects();
ChartObject chartObj = chartObjs.Add(150, 20, 300, 300);
Chart xlChart = chartObj.Chart;

// generate some random data
for (int row = 0; row < 16; row++)
{
    ws.Cells[row + 2, 2] = row + 1;
    ws.Cells[row + 2, 3] = random.Next(100);
}

Range xValues = ws.Range["B2", "B17"];
Range values = ws.Range["C2", "C17"];

SeriesCollection seriesCollection = xlChart.SeriesCollection();

Series series1 = seriesCollection.NewSeries();
series1.XValues = xValues;
series1.Values = values; 

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