Question

我有一个从Excel电子表格创建的C＃列表，我想将其导出到Excel。我怎样才能完成这项任务？这只是一个控制台项目。我不打算在.Net应用程序中显示数据。我只需要电子表格。

var fileName = string.Format("C:\\Users\\SGurmu\\Desktop\\Data 091510.xls");
var connectionString = string.Format("Provider=Microsoft.Jet.OLEDB.4.0; data source={0}; Extended Properties=Excel 8.0;", fileName);

var fileName2 = string.Format("C:\\Users\\SGurmu\\Desktop\\Copy of Prototype.xls");
var connectionString2 = string.Format("Provider=Microsoft.Jet.OLEDB.4.0; data source={0}; Extended Properties=Excel 8.0;", fileName);

var adapter = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", connectionString);
var ds = new DataSet();

adapter.Fill(ds, "contacts");

var data = ds.Tables["contacts"].AsEnumerable();

List<EmployeeData> query = data.Where(x => x.Field<string>("First_Name") != string.Empty).Select(x =>

new EmployeeData
    {
    empID = x.Field<double>("EMPLOYEE"),
    firstName = x.Field<string>("First_Name"),
    lastName = x.Field<string>("Last_Name"),
    JobCategory = x.Field<string>("Job Title"),
    StartDate = x.Field<Nullable<DateTime>>("Hire Dt"),
    EndDate =   x.Field<Nullable<DateTime>>("Term Dt"),
    TermReason = x.Field<string>("Term Reason"),
    PeggedUID = x.Field<Nullable<double>>("Pegged UserID"),
    UpdateDate = x.Field<Nullable<DateTime>>("Last Updated")
    }).ToList();

Answer 1

也许您可以尝试使用Nuget中托管的Infodinamica.Framework.Expotable包。

有了它，你可以做这样的事情

List<EmployeeData> query = data.Where(x => x.Field<string>("First_Name") != string.Empty).Select(x =>

    new EmployeeData
        {
        empID = x.Field<double>("EMPLOYEE"),
        firstName = x.Field<string>("First_Name"),
        lastName = x.Field<string>("Last_Name"),
        JobCategory = x.Field<string>("Job Title"),
        StartDate = x.Field<Nullable<DateTime>>("Hire Dt"),
        EndDate =   x.Field<Nullable<DateTime>>("Term Dt"),
        TermReason = x.Field<string>("Term Reason"),
        PeggedUID = x.Field<Nullable<double>>("Pegged UserID"),
        UpdateDate = x.Field<Nullable<DateTime>>("Last Updated")
        }).ToList();

    IExportEngine engine = new ExcelExportEngine();
    engine.AddData(EmployeeData);
    MemoryStream memory = engine.Export();

您可以使用nuget命令安装：

Install-Package Infodinamica.Framework.Exportable

唯一的问题是，文档是西班牙语。

项目页面为here

导出示例（西班牙语）为here

它还启用导入文件（西班牙语）here

如何将C＃对象列表导出到Excel电子表格？

1 个答案: