在C＃中没有使用Filehelpers FileHelperAsyncEngine的头文件

Question

从FileHelperEngine切换到FileHelperAsyncEngine后，似乎无法让FileHelpers库写入标头。我根据文档调用了GetFileHeader（）。有任何想法吗？

<!-- language: c# -->

var engine = new FileHelperAsyncEngine<ClaimModel>();
using (engine.BeginWriteFile(file))
{
    engine.HeaderText = engine.GetFileHeader();
    foreach (ClaimModel claim in claims)
    {
        engine.WriteNext(Utils.CleanStrings(claim));
    }
 }

   [FileHelpers.DelimitedRecord("|")]
    public class ClaimModel : Model
    {
        [FieldQuoted()]
        public string PolicyRef ;

Answer 1

您需要在HeaderText之前设置BeginWriteFile()。

var engine = new FileHelperAsyncEngine<ClaimModel>();
engine.HeaderText = engine.GetFileHeader();
using (engine.BeginWriteFile(file))
{
    foreach (ClaimModel claim in claims)
    {
        engine.WriteNext(Utils.CleanStrings(claim));
    }
}