已使用ExcelDataReader NuGET包。
这是设置它的类-
private static DataTable ExcelToDataTable(string fileName)
{
//open file and returns as Stream
FileStream stream = File.Open(fileName, FileMode.Open, FileAccess.Read);
//Createopenxmlreader via ExcelReaderFactory
IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream); //.xlsx
//Set the First Row as Column Name
excelReader.IsFirstRowAsColumnNames = true;
//Return as DataSet
DataSet result = excelReader.AsDataSet();
//Get all the Tables
DataTableCollection table = result.Tables;
//Store it in DataTable
DataTable resultTable = table["Sheet1"];
//return
return resultTable;
}
static List<Datacollection> dataCol = new List<Datacollection>();
public static void PopulateInCollection(string fileName)
{
DataTable table = ExcelToDataTable(fileName);
//Iterate through the rows and columns of the Table
for (int row = 1; row <= table.Rows.Count; row++)
{
for (int col = 0; col < table.Columns.Count; col++)
{
Datacollection dtTable = new Datacollection()
{
rowNumber = row,
colName = table.Columns[col].ColumnName,
colValue = table.Rows[row - 1][col].ToString()
};
//Add all the details for each row
dataCol.Add(dtTable);
}
}
}
public static string ReadData(int rowNumber, string columnName)
{
try
{
//Retriving Data using LINQ to reduce much of iterations
string data = (from colData in dataCol
where colData.colName == columnName && colData.rowNumber == rowNumber
select colData.colValue).SingleOrDefault();
//var datas = dataCol.Where(x => x.colName == columnName && x.rowNumber == rowNumber).SingleOrDefault().colValue;
return data.ToString();
}
catch (Exception)
{
return null;
}
}
}
public class Datacollection
{
public int rowNumber { get; set; }
public string colName { get; set; }
public string colValue { get; set; }
}
}
它在代码中调用了-
//setting the excel file location
ExcelLib.PopulateInCollection(@"C:\Users\User1\Documents\data.xlsx");
//reading data from row 1 & column named middlename
xrmApp.Entity.SetValue("middlename", ExcelLib.ReadData(1, "middlename"));
我希望能够以不同的方法使用此代码,对于每种方法,我需要不同的数据。无论如何,他们可以在代码中添加一个工作表编号参数,以便在读取行号和列编号时指定要查找的工作表。
谢谢!
根据您的描述,您想从同一工作表的不同工作表中读取数据
excel文件。
我建议您可以将excel文件转换为数据集,然后从]中选择数据表。
数据集。
就像下面的代码:
在此之前,请同时安装nuget包ExcelDataReader和ExcelDataReader.DataSet。
class Program { static void Main(string[] args) { DataSet set = ExcelToDataSet("D:\\test.xlsx"); DataTable table = set.Tables[0]; // first sheet string data = ReadData(table, 0, "TeacherName");// the first row and colunname is teachername Console.WriteLine(data); table = set.Tables[1]; //second sheet data = ReadData(table, 0, "StuName");// the first row and colunname is stuname Console.WriteLine(data); Console.ReadKey(); } private static DataSet ExcelToDataSet(string fileName) { //open file and returns as Stream FileStream stream = File.Open(fileName, FileMode.Open, FileAccess.Read); //Createopenxmlreader via ExcelReaderFactory IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream); //.xlsx //Set the First Row as Column Name DataSet result = excelReader.AsDataSet(new ExcelDataSetConfiguration() { ConfigureDataTable = (_) => new ExcelDataTableConfiguration() { UseHeaderRow = true } }); //Get all the Tables //return return result; } static string ReadData(DataTable table,int row,string columnname) { return table.Rows[row].Field<string>(columnname).ToString(); } }
我创建了以下excel:
第一张纸:
第二张纸: