FileHelper escape delimiter

Question

I am using FileHelper 2.0 for parsing my csv data. Is there any option that filehelper can properly handle escaped delimiter? That it can identify field as data and not as d

Answer 1

First, you need to make all of your fields optionally quoted.

[DelimitedRecord(",")] 
public class contactTemplate
{
  [FieldQuoted('"', QuoteMode.OptionalForBoth)]
  public string firstName;
  [FieldQuoted('"', QuoteMode.OptionalForBoth)]
  public string lastName;
}

Then you need to quote all the fields which contain an escaped character. You can use a BeforeReadRecord event for this.

FileHelperEngine engine = new FileHelperEngine(typeof(contactTemplate)); 
engine.BeforeReadRecord += BeforeEvent; 

private void BeforeEvent(EngineBase engine, BeforeReadRecordEventArgs e)
{
    if (e.RecordLine.Contains("\"))
    {
        string[] parts = SplitStringRespectingEscapeCharacter(eRecordLine);
        parts = QuoteAnyPartsWhichContainEscapeCharacter(parts);
        parts = RemoveAnyEscapeCharacters(parts);
        e.RecordLine = parts.Join;
    } 
}

You can find some code to get you started on your customized split function here.