Question

我正在使用CSVHelper NuGet包，我收到错误“CSV文件中不存在字段”。这是我的代码：

using (TextReader prodFile = System.IO.File.OpenText(filePath))
{
    CsvReader csv = new CsvReader(prodFile);
    List<PulProduct> prodList = csv.GetRecords<PulProduct>().ToList();
}

类

public class PulProduct
    {
        public string PartNumber { get; set; }
        public string PPartNumber { get; set; }
        public string VPartNumber { get; set; }
        public string VPPartNumber { get; set; }
        public string Status { get; set; }
        public string Description { get; set; }
        public decimal ORetail { get; set; }
        public decimal CSRetail { get; set; }
        public decimal BDPrice { get; set; }
        public decimal YDPrice { get; set; }
        public string Hazardous { get; set; }
        public string TruckPart { get; set; }
        public string PartAddDate { get; set; }
        public int AvailabilityWI { get; set; }
        public int AvailabilityNY { get; set; }
        public int AvailabilityTX { get; set; }
        public int AvailabilityCA { get; set; }
        public int AvailabilityNV { get; set; }
        public int AvailabilityNC { get; set; }
        public int AvailabilityNational { get; set; }
        public string Trademark { get; set; }
        public string AdPolicy { get; set; }
        public string PriceChanged { get; set; }
        public string UOM { get; set; }
        public string UPC { get; set; }
        public string BrandName { get; set; }
        public string Country { get; set; }
        public string Weight { get; set; }
        public string Closeout { get; set;}
        public string NoShipToCA { get; set; }
        public string Notes {get; set; }
    }

CSVHelper文档说CSVHelper会自动将我的类映射到CSV文件。我不确定我做错了什么。

完整的例外是：

CsvHelper.dll中出现“CsvHelper.CsvMissingFieldException”类型的异常，但未在用户代码中处理

其他信息：CSV文件中不存在字段'PartNumber'。

以下是示例标题和第一行：

Part Number,Punctuated Part Number,Vendor Part Number,Vendor Punctuated Part Number,Part Status,Part Description,Original Retail,Current Suggested Retail,Base Dealer Price,Your Dealer Price,Hazardous Code,Truck Part Only,Part Add Date,WI Availability,NY Availability,TX Availability,CA Availability,NV Availability,NC Availability,National Availability,Trademark,Ad Policy,Price Changed Today,Unit of Measure,UPC Code,Brand Name,Country of Origin,Weight,Closeout Catalog Indicator,NoShipToCA, Notes
0023451,001-0901,0067401,067-0401,S,4-1 SYS OBR CB350/4,399.95,352.95,384.40,214.40,,,19341102,0,0,0,0,0,0,0,,,N,EA,879345348000086,MAC,US,13.80,N, ,

Answer 1

由于空格，您的字段名称和文件列标题不匹配。在PulProduct中，第一个字段是“PartNumber”。在您的示例文件中，第一列是“Part Number”。在CsvConfiguration对象中将 IgnoreHeaderWhiteSpace 设置为true将处理此问题。

using (TextReader prodFile = System.IO.File.OpenText(filePath))
{
    CsvReader csv = new CsvReader(prodFile);
    csv.Configuration.IgnoreHeaderWhiteSpace = true;
    List<PulProduct> prodList = csv.GetRecords<PulProduct>().ToList();
}

Answer 2

即使文档声明CSVHelper会自动将类映射到CSV文件，您仍然需要手动编写将映射到CSV文件的地图。

CSVReader - CSV文件中不存在字段

2 个答案: