Question

我写了下面的代码，但是我收到了错误，因为我提到的任何人都可以告诉

protected void btnGenerate_Click(object sender, EventArgs e)
{
    DataRow[] dRow;
    DataTable dt = new DataTable();
    foreach (GridViewRow grRow in grdACH.Rows)
    {
        CheckBox chkItem = (CheckBox)grRow.FindControl("checkRec");
        if (chkItem.Checked)
        {
            chkItm = true;
            chkcnt++;
            strBankTypeID = ((Label)grRow.FindControl("lblBankType")).Text.ToString();
            strBnkArray.Append(strBankTypeID);
            strBnkArray.Append(",");
        }
    }
    oEmpDeposits.getEmpDepositDetails(out local_ds, strFedTaxId, PayperiodNumber, PayrollYear, strPayFreqType);

for (int i = 0; i < local_ds.Tables[0].Rows.Count; i++)
    {
        string strTrim = strBnkArray.ToString().TrimEnd(',');
        strTrim = "BankAccountTypeID='" + strTrim[i] + "'";
        if (strTrim.Contains("BankAccountTypeID=',"))
        {
            strTrim = "BankAccountTypeID='" + strTrim[i] + "'";
        }

        dRow = local_ds.Tables[0].Select(strTrim);
    }
}

Answer 1

语法错误来自此声明：

dRow = local_ds.Tables[0].Select(strBnkArray.ToString().TrimEnd(','));

您尝试使用的表达式有问题。

该表达式由此构成：

strBnkArray.ToString().TrimEnd(',')

检查那是什么，然后找到答案。也许这样：

string mySelectStatement = strBnkArray.ToString().TrimEnd(',');
dRow = local_ds.Tables[0].Select(mySelectStatement);

Answer 2

为什么不使用ArrayList而不是String数组。这样操作起来很容易

样品

if (chkItem.Checked)
{
  chkItm = true;
  chkcnt++;
  strBankTypeID += ((Label)grRow.FindControl("lblBankType")).Text.ToString(); 
  ArrayList lstArray=new ArrayList();
  lstArray.Add(strBankTypeID);
}

稍后

 oEmpDeposits.getEmpDepositDetails(out local_ds, strFedTaxId, PayperiodNumber, PayrollYear, strPayFreqType);

    for (int i = 0; i < lstArray.Count; i++)
    {
        //string strTrim = strBnkArray.ToString().TrimEnd(',');
        strBankAccntType = "BankAccountTypeID='" + lstArray[i].ToString() + "'";
        dRow = local_ds.Tables[0].Select(strBankAccntType);
    }

为什么编译此代码会导致语法错误？

2 个答案: