在C＃中使用Filehelpers FileHelperAsyncEngine沒有標題

Question

從FileHelperEngine切換到FileHelperAsyncEngine后，似乎無法使FileHelpers庫寫入標頭。 我已經根據文檔將其稱為GetFileHeader（）。 有任何想法嗎？

<!-- 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BeginWriteFile()之前設置HeaderText 。

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