我在这方面已经打了一段时间，这是以导入形式，它将excel电子表格中的行导入到datagridview，然后允许用户在需要时确保更改，然后添加或更新db行。 / p>
我已经在电子表格中包含了示例行，以及检查这些行的代码部分。我的问题是，其中4行没有标记为prev。无论你运行多少次都会发现它。
任何输入？
示例excel文件：
+-------+----------+-----------+------------------+-------+------------+--------+------------------------+
| Trans | Eff Date | Policy # | Insured Name | PIF | GWP | Agent% | Agent NB Comm |
+-------+----------+-----------+------------------+-------+------------+--------+------------------------+
| AV | Jul-10 | 186990710 | FLORECE, BOB | 0 | 0.00 | 10.000 | 0.00 |
| AV | Jul-18 | 193214729 | CIRONIDA, JOHN A | 0 | 0.00 | 10.000 | 0.00 |
| CH | Jun-26 | 186990710 | FLORECE, BOB | 0 | 51.97 | 10.000 | 5.20 |
| CH | Jul-10 | 186990710 | FLORECE, BOB | 0 | (64.83) | 10.000 | (6.48) - NOT MATCHED |
| CH | Jul-10 | 186990710 | FLORECE, BOB | 1 | 272.19 | 10.000 | 27.22 |
| CH | Jul-01 | 192182230 | URZ, SUSAN A | 0 | (50.70) | 10.000 | (5.07) - NOT MATCHED |
| CH | Jul-09 | 193089995 | STOMPKINS, JIM | 0 | 45.37 | 10.00 | 4.54 |
| CH | Jul-18 | 193214729 | CIRONIDA, JOHN A | 1 | 125.99 | 10.000 | 12.60 |
| CH | May-15 | 196666151 | STROP, JONA | 0 | 13.40 | 10.000 | 1.34 |
| CH | May-15 | 196666151 | STROP, JONA | 0 | (13.40) | 10.000 | (1.34) |
| CN | Jul-03 | 193435083 | MADDORE, SHARON | -1 | (1,097.81) | 10.000 | (109.78) - NOT MATCHED |
| NB | Jul-01 | 192182230 | URZ, SUSAN A | 3 | 570.10 | 10.000 | 57.01 |
| CH | Jul-10 | 197907782 | LANSKY, WAYNE | 0 | 4.34 | 10.000 | 0.43 |
| NB | Jul-14 | 184221262 | SMITH, DAN | 2 | 419.60 | 10.000 | 41.96 |
| CH | Jul-03 | 184532495 | MULLEN, ROBERT | 0 | (16.41) | 10.000 | (1.64) - NOT MATCHED |
+-------+----------+-----------+------------------+-------+------------+--------+------------------------+
代码：
intDGRow = dgvImported.Rows.Count;
for (int i = 0; i < intDGRow; i++)
{
//set var values from the dgv
strPolicyNum = dgvImported.Rows[i].Cells["policynum"].Value.ToString().Replace(" ", string.Empty);
strEDate = DateTime.Parse(dgvImported.Rows[i].Cells["EffDate"].Value.ToString()).ToShortDateString();
strGWP = dgvImported.Rows[i].Cells["gwp"].Value.ToString().Replace(",", string.Empty);
strPIF = dgvImported.Rows[i].Cells["pif"].Value.ToString();
//check if row matches a current transaction in the DB - if so update matched column to value = matched - checks for match by doing a row count in the DB that match the fields - if only 1 row matches then the transaction is a match
if (dbAccess.RowCount("sales", "policynum = '" + strPolicyNum + "' AND effectivedate = #" + strEDate + "# AND pif = " + strPIF + " AND gwp = " + strGWP) == 1)
{
if (dbAccess.RowCount("sales", "policynum = '" + strPolicyNum + "' AND effectivedate = #" + strEDate + "# AND pif = " + strPIF + " AND gwp = " + strGWP + "AND matched = true") == 1)
{
dgvImported.Rows[i].Cells["Matched"].Value = "PrevMatched"; //update the matched column to reflect this item was previously matched
}
else
{
dgvImported.Rows[i].Cells["Matched"].Value = "Matched"; //update the matched column to reflect this item was matched
}//end sub if / else (prev matched)
}//end if
else
{
dgvImported.Rows[i].Cells["Matched"].Value = "UnMatched"; //update the matched column to reflect this item was not matched
}//end else
dgvImported.Rows[i].Cells["producer"].Value = dbAccess.ValueLookup("SELECT producer FROM sales WHERE policynum = '" + strPolicyNum + "'", "producer"); //lookup the producer for the policy number - should pull the last producer attached to the policy
dgvImported.Rows[i].Cells["SalesID"].Value = dbAccess.ValueLookup("SELECT saleskey FROM sales WHERE policynum = '" + strPolicyNum + "' AND effectivedate = #" + strEDate + "# AND gwp = " + strGWP, "saleskey"); //lookup the saleskey from sales table that matches the transaction
}//end for
}//end if file open
}//end file open button
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