将属性传递给方法时实现更简洁

var field = GetFieldStringValue(columnCode);
if (IsValidDecimal(field))
{
    currentRow.Amount = Decimal.Parse(field);
}
else
{
    ReportError();
}

最后,我选择了这样一个方法(对于各种类型都有重载):

    private void SetPropertyOrReportError(Action<decimal?> e, string columnCode)
    {
        if (IsValidDecimal(columnCode))
        {
            var fieldValue = Decimal.Parse(GetFieldStringValue(columnCode));
            e(fieldValue);
        }
        else if (!IsColumRequired(columnCode))
        {
            e(null);
        }
        else
        {
            SetPropertyOrReportError();
        }
    }

这样,对于每一行,我都会得到如下代码:

var currentRow = new ClaimImportHelper();
SetPropertyOrReportError((e) => currentRow.ClaimantName = e, ClaimantNameColumnCode);
SetPropertyOrReportError((e) => currentRow.CustomerName = e, CustomerNameColumnCode);
SetPropertyOrReportError((e) => currentRow.CustomerProject = e, CustomerProjectColumnCode);
SetPropertyOrReportError((e) => currentRow.ClaimDate = e.Value, ClaimDateColumnCode);
SetPropertyOrReportError((e) => currentRow.ClaimSubmitted = e, ClaimSubmittedColumnCode);
SetPropertyOrReportError((e) => currentRow.ExpenseCategory = e, ExpenseCategoryColumnCode);
SetPropertyOrReportError((e) => currentRow.ExpenseType = e, ExpenseTypeColumnCode);
SetPropertyOrReportError((e) => currentRow.Amount = e.Value, AmountColumnCode);
SetPropertyOrReportError((e) => currentRow.PayeeReference = e, PayeeReferenceColumnCode);
SetPropertyOrReportError((e) => currentRow.Detail = e, DetailColumnCode);
SetPropertyOrReportError((e) => currentRow.TransactionDate = e, TransactionDateColumnCode);
parsedItems.Add(currentRow);

我认为这是更好的,因为它表达了它的意图更好。但是,它仍然不是我希望的那样,我希望能够像这样调用该方法:

SetPropertyOrReportError(currentRow.ClaimantName, ClaimantNameColumnCode);
SetPropertyOrReportError(currentRow.CustomerName, CustomerNameColumnCode);
SetPropertyOrReportError(currentRow.CustomerProject, CustomerProjectColumnCode);
SetPropertyOrReportError(currentRow.ClaimDate, ClaimDateColumnCode);
SetPropertyOrReportError(currentRow.ClaimSubmitted, ClaimSubmittedColumnCode);