IWriterConfiguration.ReferenceHeaderPrefix 相当于新版本的 CsvHelper

Question

新版本的 CsvHelper 中 csvWriter.Configuration.ReferenceHeaderPrefix 的等价物是什么？试试这个

csvWriter.Configuration.ReferenceHeaderPrefix = (memberType, memberName) => $"{memberName}_";

但它不允许我，因为 ReferenceHeaderPrefix 在版本 20.0.0 之后只有 get 方法

Answer 1

通常的工作流程是构造一个实例 CsvConfiguration class and pass that into the constructor for the reader or writer. And CsvConfiguration.ReferenceHeaderPrefix 确实有一个 set 方法。

var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
    ReferenceHeaderPrefix = (args) => $"{args.MemberName}_",
};
using (var writer = new StreamWriter("path\to\file.csv"))
using (var csv = new CsvWriter(writer, config))
{
    // Write your CSV records here.
    csv.WriteRecords(records);
}

另请注意，在当前版本 (27.2.0) 中，ReferenceHeaderPrefix takes a single ReferenceHeaderPrefixArgs 参数包含 MemberType 和 MemberName 字段：

public readonly struct ReferenceHeaderPrefixArgs
{
  public readonly Type MemberType;

  public readonly string MemberName;

  public ReferenceHeaderPrefixArgs(Type memberType, string memberName)
  {
      MemberType = memberType;
      MemberName = memberName;
  }
}

IWriterConfiguration.ReferenceHeaderPrefix 相当于新版本的 CsvHelper

IWriterConfiguration.ReferenceHeaderPrefix equivalent in newer versions of CsvHelper

c#

.net-6.0

csvhelper