添加数据时打开XML不保存C#

Question

我从以下链接制作了完整副本：https://msdn.microsoft.com/en-us/library/dd452407(v=office.12).aspx

从模板复制工作正常，

FixChartData()

方法工作正常。但是，输出文件不包含任何数据。我确实通过调试器看到 contentRow 包含数据，但当我打开文件时，Excel 工作表中没有数据。

非常令人沮丧。任何帮助将不胜感激。

public void Create()
    {
        string appPath = System.IO.Path.GetDirectoryName(System.IO.Path.GetDirectoryName(System.IO.Directory.GetCurrentDirectory()));
        
        string templateFile = appPath + @"\Templates\ChartExample.xlsx";
        string saveFile = appPath + @"\Documents\Generated.xlsx";
       
        File.Copy(templateFile, saveFile, true);

        //open copied template.
        using(SpreadsheetDocument myWorkbook = SpreadsheetDocument.Open(saveFile, true))
        {
            //this is the workbook contains all the worksheets
            WorkbookPart workbookPart = myWorkbook.WorkbookPart;

            //we know that the first worksheet contains the data for the graph
            WorksheetPart worksheetPart = workbookPart.WorksheetParts.First(); //getting the first worksheet
            //the sheet data contains the information we are looking to alter
            SheetData sheetData = worksheetPart.Worksheet.GetFirstChild<SheetData>();

            int index = 2;//Row the data for the graph starts on
            //var qry = from t in db.SEL_SE_DEATHS()
            FudgeData fudge = new FudgeData();

            var qry = fudge.Fudged();

            foreach(var item in qry)
            {
                int Year = item.EventYear;
                int PSQ = item.PSQReviewable;
                int death = item.Deaths;

                Row contentRow = CreateContentRow(index, Year, PSQ, death);
                index++;
                //contentRow.RowIndex = (UInt32)index;
                sheetData.AppendChild(contentRow);
                
            }
            
            //(<x:c r="A2" xmlns:x="http://schemas.openxmlformats.org/spreadsheetml/2006/main"><x:v>2014</x:v></x:c><x:c r="B2" xmlns:x="http://schemas.openxmlformats.org/spreadsheetml/2006/main"><x:v>21</x:v></x:c><x:c r="C2" xmlns:x="http://schemas.openxmlformats.org/spreadsheetml/2006/main"><x:v>4</x:v></x:c>)
            FixChartData(workbookPart, index);
            worksheetPart.Worksheet.Save();

            myWorkbook.Close();
            myWorkbook.Dispose();
        }

    }

    string[] headerColumns = new string[] { "A", "B", "C" }; //the columns being accessed
    public Row CreateContentRow(int index, int year, int pSQ, int death)
    {
        Row r = new Row();
        r.RowIndex = (UInt32)index;

        //skipping the text add function

        //we are creating a cell for each column (headerColumns),
        //for each cell we are adding a value.
        //we then append the value to the cell and append the cell to the row - which is returned.
        for(int i =0; i <headerColumns.Length; i++)
        {
            Cell c = new Cell();
            c.CellReference = headerColumns[i] + index;
            CellValue v = new CellValue();
            if(i == 0)
            {
                v.Text = year.ToString();
            }else if(i == 1)
            {
                v.Text = pSQ.ToString();
            }else if(i == 2)
            {
                v.Text = death.ToString();
            }
            c.AppendChild(v);
            r.AppendChild(c);
        }
        return r;
        
    }

    //Method for when the datatype is text based
    public Cell CreateTextCell(string header, string text, int index)
    {
        //Create a new inline string cell.
        Cell c = new Cell();
        c.DataType = CellValues.InlineString;
        c.CellReference = header + index;
        //Add text to the text cell.
        InlineString inlineString = new InlineString();
        Text t = new Text();
        t.Text = text;
        inlineString.AppendChild(t);
        c.AppendChild(inlineString);
        return c;
    }

    //fix the chart Data Regions
    public void FixChartData(WorkbookPart workbookPart, int totalCount)
    {

        var wsparts = workbookPart.WorksheetParts.ToArray();

        foreach(WorksheetPart wsp in wsparts)
        {
            if(wsp.DrawingsPart != null)
            {
                ChartPart chartPart = wsp.DrawingsPart.ChartParts.First();
                ////change the ranges to accomodate the newly inserted data.
                foreach (DocumentFormat.OpenXml.Drawing.Charts.Formula formula in chartPart.ChartSpace.Descendants<DocumentFormat.OpenXml.Drawing.Charts.Formula>())
                {
                    if (formula.Text.Contains("$2"))
                    {
                        string s = formula.Text.Split('$')[1];
                        formula.Text += ":$" + s + "$" + totalCount;
                    }
                }
                chartPart.ChartSpace.Save();
            }
        }

        //ChartPart chartPart = workbookPart.ChartsheetParts.First().DrawingsPart.ChartParts.First();
        ////change the ranges to accomodate the newly inserted data.
        //foreach(DocumentFormat.OpenXml.Drawing.Charts.Formula formula in chartPart.ChartSpace.Descendants<DocumentFormat.OpenXml.Drawing.Charts.Formula>())
        //{
        //    if (formula.Text.Contains("$2"))
        //    {
        //        string s = formula.Text.Split('$')[1];
        //        formula.Text += ":$" + s + "$" + totalCount;
        //    }
        //}
        //chartPart.ChartSpace.Save();
    }

Answer 1

大卫， 我让你的代码工作正常。 这是我的控制台应用程序的链接。。我把它上传到了 Github，做了一些小的修改。我做了 2 处更改：

1）我无法从您提供的链接下载示例。所以我用Excel2016创建了一个空白的电子表格并将其保存在该目录中。

2）Fudge 数据丢失，所以我通过自模拟对象生成了一些示例数据。

电子表格可以很好地从模板中复制，并且您的代码会使用捏造的数据填充它。最终结果如下：

下载后，您需要创建一个

Template

和

Document

子目录。然后将我的

ChartExample.xslx

文件放入 Template 目录中并运行。