如何使用c＃中的excel数据读取器获取特定单元格的内容？

I have a xlsx file like (it is the first sheet)

我有一个xlsx文件(这是第一张)

Postcode    Sales_Rep_ID    Sales_Rep_Name  Year    Value
2121            456             Jane        2011    $84,219
2092            789             Ashish      2012    $28,322
2128            456             Janet       2013    $81,879
2073            123             John        2011    $44,491

How do I get a particular value of the column named Year whose say, Sales_Rep_Name value is Janet? I'm stuck at the below code and can't figure how to do it?

如何获取名为Year的列的特定值,其中Sales_Rep_Name值为Janet?我被困在下面的代码,无法想象如何做到这一点?

FileStream stream = File.Open(@"C:\Users\Bumba\Downloads\Sample-Sales-Data.xlsx", FileMode.Open, FileAccess.Read);
IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream);

DataSet result = excelReader.AsDataSet(new ExcelDataSetConfiguration() {
ConfigureDataTable = (_) => new ExcelDataTableConfiguration() {
    UseHeaderRow = true
}
});

foreach (DataTable element in result.Tables) {
    Console.WriteLine(element.Columns["Year"].ToString());
    //what to do??????
}

excelReader.Close();
Console.ReadLine();

Someone help....

1 个解决方案

#1

The easiest option is just to enumerate table (sheet) rows and compare the value in Sales_Rep_Name column against required value ("Janet"):

最简单的选择是枚举表(表)行并将Sales_Rep_Name列中的值与所需值(“Janet”)进行比较:

foreach (DataTable table in result.Tables)
{
    foreach (DataRow row in table.Rows)
    {
        var salesRepName = (string)row["Sales_Rep_Name"];
        if (String.Equals(salesRepName, "Janet"))
        {
            var year = (int)(double)row["Year"];
            Console.WriteLine($"Janet's year is {year}");
        }
    }
}

You could also use DataTable.Select(string filterExpression) method to match required rows:

您还可以使用DataTable.Select(string filterExpression)方法来匹配所需的行:

foreach (DataTable table in result.Tables)
{
    foreach (DataRow row in table.Select("Sales_Rep_Name = 'Janet'"))
    {
        var year = (int)(double)row["Year"];
        Console.WriteLine($"Janet's year is {year}");
    }
}

The second choice will work faster (when the data is big), however the first one is more flexible and allows to use more complex filters.

第二种选择将更快(当数据很大时),但第一种选择更灵活,允许使用更复杂的过滤器。

#1