我想使用epplus excel包更新(添加另一个工作表和图表)现有的xlsx文件。然而,在以下行中出现错误:
var pieChart = worksheet.Drawings.AddChart("Chart1", OfficeOpenXml.Drawing.Chart.eChartType.Pie);
错误:类型为'System.InvalidOperationException'的未经处理异常发生在EPPlus.dll中。其他信息:部件已存在
有人能帮我吗?提前感谢。
using (ExcelPackage pck = new ExcelPackage())
{
using (FileStream stream = new FileStream("Report.xlsx", FileMode.Open))
{
pck.Load(stream);
ExcelWorksheet worksheet = pck.Workbook.Worksheets.Add("1");
var data = new List<KeyValuePair<string, int>>
{
new KeyValuePair<string, int>("Group A", 44613),
new KeyValuePair<string, int>("Group B", 36432),
new KeyValuePair<string, int>("Group C", 6324),
new KeyValuePair<string, int>("Group A", 6745),
new KeyValuePair<string, int>("Group B", 23434),
new KeyValuePair<string, int>("Group C", 5123),
new KeyValuePair<string, int>("Group A", 34545),
new KeyValuePair<string, int>("Group B", 5472),
new KeyValuePair<string, int>("Group C", 45637),
new KeyValuePair<string, int>("Group A", 37840),
new KeyValuePair<string, int>("Group B", 20827),
new KeyValuePair<string, int>("Group C", 4548),
};
//Fill the table
var startCell = worksheet.Cells[1, 1];
startCell.Offset(0, 0).Value = "Group Name";
startCell.Offset(0, 1).Value = "Value";
for (var i = 0; i < data.Count(); i++)
{
startCell.Offset(i + 1, 0).Value = data[i].Key;
startCell.Offset(i + 1, 1).Value = data[i].Value;
}
//Add the chart to the sheet
var pieChart = worksheet.Drawings.AddChart("Chart1", OfficeOpenXml.Drawing.Chart.eChartType.Pie);
pieChart.SetPosition(data.Count + 1, 0, 0, 0);
pieChart.Title.Text = "Test Chart";
pieChart.Title.Font.Bold = true;
pieChart.Title.Font.Size = 12;
pck.Save();
}
Chart X
还是Chart1
?这个工作簿的其他工作表上是否已经存在Chart1
(或者你使用的任何 Chart X)? - Techievar pieChart = worksheet...
是引发异常的地方吗? - AsafSavich