C# 如何在使用epPlus的excel中检查和合并两行，看下一个值是否相同

我正在EPPlus库的帮助下进行动态Excel创建，我有一个Excel，其数据如下所示：

Name     EmpCode   Department      attendance
Prashant  111      CSE         70% for Sep
Prashant  111      CSE         90% for Oct
XYZ       112      HR          50% for Sep
XYZ       112      HR          90% for Oct

我想要的是： 如果当前EmpCode等于下一行的值，则将这两列合并，这样预期的输出将是

我敢肯定每个EMP代码只会重复两次

我尝试过的代码如下：

for (var rowNum = 1; rowNum <= ws.Dimension.End.Row; rowNum++)
 {
   var row = ws.Cells[string.Format("{0}:{0}", rowNum)];
 }

---

for（var rowNum=1；rowNum此代码仅在EMP代码重复两次时有效，但您说您非常确定它只会重复两次，所以应该可以，只是不太具有可伸缩性

在电子表格中获得数据后，必须循环数据集中的所有行。循环开始时设置当前行的范围，循环结束时设置上一行的范围。
如果设置了上一个范围，则计算每行的列，以确定是否应将单元格合并在一起

using (var p = new OfficeOpenXml.ExcelPackage(new FileInfo(@"c:\FooFolder\Foo.xlsx")))
{
    ExcelWorkbook wb = p.Workbook;
    ExcelWorksheet ws = wb.Worksheets[1];

    //create variable for previous range that will persist through each loop
    ExcelRange previousRange = null;

    //set position of first column to merge
    int mergecellBegin = 1;

    //set position of last column to merge
    int mergeCellEnd = 3;

    //create variable to check the cells of your rows
    bool areCellsEqual;

    //iterate through each row in the dataset

    for (var rowNum = 2; rowNum <= ws.Dimension.End.Row; rowNum++)
    {
        ExcelRange currentRange = ws.Cells[rowNum, 1, rowNum, mergeCellEnd];

        //will skip if we haven't set previous range yet
        if (previousRange != null)
        {
            //reset your check variable
            areCellsEqual = true;
            //check if all cells in the ranges are qual to eachother
            for (int i = 1; i <= mergeCellEnd; i++)
            {
                //if the cells from the ranges are not equal then set check variable to false and break the loop
                if (!currentRange[rowNum, i].Value.Equals(previousRange[rowNum - 1, i].Value))
                {
                    areCellsEqual = false;
                    break;
                }
            }

            //if all cells from the two ranges match, merge them together.
            if (areCellsEqual)
            {
                //merge each cell in the ranges
                for (int i = 1; i <= mergeCellEnd; i++)
                {
                    ExcelRange mergeRange = ws.Cells[rowNum - 1, i, rowNum, i];
                    mergeRange.Merge = true;
                }
            }
        }

        //sets the previous range to the current range to be used in next iteration
        previousRange = currentRange;
    }

    p.Save();
}

使用（var p=newofficeopenxml.ExcelPackage（newfileinfo（@“c:\fooofolder\Foo.xlsx”））
{
Excel工作簿wb=p.工作簿；
Excel工作表ws=wb.工作表[1]；
//为上一个范围创建变量，该范围将在每个循环中保持不变
ExcelRange previousRange=null；
//设置要合并的第一列的位置
int mergecellBegin=1；
//设置要合并的最后一列的位置
int-mergeCellEnd=3；
//创建变量以检查行的单元格
布尔·阿雷塞尔；
//遍历数据集中的每一行
对于（var rowNum=2；rowNum此代码仅在EMP代码重复两次时有效，但您说您非常确定它只会重复两次，所以应该可以，只是不太可伸缩

在电子表格中获得数据后，必须循环数据集中的所有行。循环开始时设置当前行的范围，循环结束时设置上一行的范围。
如果设置了上一个范围，则计算每行的列，以确定是否应将单元格合并在一起

using (var p = new OfficeOpenXml.ExcelPackage(new FileInfo(@"c:\FooFolder\Foo.xlsx")))
{
    ExcelWorkbook wb = p.Workbook;
    ExcelWorksheet ws = wb.Worksheets[1];

    //create variable for previous range that will persist through each loop
    ExcelRange previousRange = null;

    //set position of first column to merge
    int mergecellBegin = 1;

    //set position of last column to merge
    int mergeCellEnd = 3;

    //create variable to check the cells of your rows
    bool areCellsEqual;

    //iterate through each row in the dataset

    for (var rowNum = 2; rowNum <= ws.Dimension.End.Row; rowNum++)
    {
        ExcelRange currentRange = ws.Cells[rowNum, 1, rowNum, mergeCellEnd];

        //will skip if we haven't set previous range yet
        if (previousRange != null)
        {
            //reset your check variable
            areCellsEqual = true;
            //check if all cells in the ranges are qual to eachother
            for (int i = 1; i <= mergeCellEnd; i++)
            {
                //if the cells from the ranges are not equal then set check variable to false and break the loop
                if (!currentRange[rowNum, i].Value.Equals(previousRange[rowNum - 1, i].Value))
                {
                    areCellsEqual = false;
                    break;
                }
            }

            //if all cells from the two ranges match, merge them together.
            if (areCellsEqual)
            {
                //merge each cell in the ranges
                for (int i = 1; i <= mergeCellEnd; i++)
                {
                    ExcelRange mergeRange = ws.Cells[rowNum - 1, i, rowNum, i];
                    mergeRange.Merge = true;
                }
            }
        }

        //sets the previous range to the current range to be used in next iteration
        previousRange = currentRange;
    }

    p.Save();
}

使用（var p=newofficeopenxml.ExcelPackage（newfileinfo（@“c:\fooofolder\Foo.xlsx”））
{
Excel工作簿wb=p.工作簿；
Excel工作表ws=wb.工作表[1]；
//为上一个范围创建变量，该范围将在每个循环中保持不变
ExcelRange previousRange=null；
//设置要合并的第一列的位置
int mergecellBegin=1；
//设置要合并的最后一列的位置
int-mergeCellEnd=3；
//创建变量以检查行的单元格
布尔·阿雷塞尔；
//遍历数据集中的每一行
对于（var rowNum=2；rowNum）来说，需求发生轻微变化，它将如何在两列以上工作？需求发生轻微变化，它将如何在两列以上工作？