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如何从DataTable中删除空行
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Stack Overflow用户
提问于 2011-08-11 16:46:31
回答 15查看 81.4K关注 0票数 14

我正在将数据从Excel工作表导入数据库。Excel表格包含一些空行,我想删除这些空行,然后将清除的数据插入到数据库中。

我参考其他代码写了一段代码,这是插入值的代码:

代码语言:javascript
复制
OleDbConnection cnn = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source='" + txtExcelFile.Text + "';Extended Properties= 'Excel 8.0;HDR=Yes;IMEX=1'");
//DataTable dt = new DataTable();

try
{
    cnn.Open();
    OleDbDataAdapter data = new OleDbDataAdapter("select * from [Customers$]", cnn);
    data.Fill(dsExcel);
    dgvCustomers.ColumnHeadersVisible = false;

    SqlConnection connection = new SqlConnection("Data Source=COMPUTER-8EB749;Initial Catalog=KITS;Integrated Security=true");
    connection.Open();
    for (int i = 0; i < dsExcel.Tables[0].Rows.Count; i++)
    {
        string ID = ds.Tables[0].Rows[i][0].ToString();
        Int16 CustID = Convert.ToInt16(ID);
        string CustName = dsExcel.Tables[0].Rows[i][1].ToString();
        string CardScheme = dsExcel.Tables[0].Rows[i][2].ToString();
        string Outlet = dsExcel.Tables[0].Rows[i][3].ToString();
        string TerminalNum = dsExcel.Tables[0].Rows[i][4].ToString();
        Int32 Terminal = Convert.ToInt32(TerminalNum);
        string Date1 = dsExcel.Tables[0].Rows[i][5].ToString();
        DateTime Date = Convert.ToDateTime(Date1);
        string Time = dsExcel.Tables[0].Rows[i][6].ToString();
        DateTime DateTime = Convert.ToDateTime(Time);
        string Amount1 = ds.Tables[0].Rows[i][7].ToString();
        double Amount = Convert.ToDouble(Amount1);

        SqlCommand com = new SqlCommand("insert into Customer(CustID,CustName,CardScheme,Outlet,TerminalNum,TranDate,TranDateTime,Amount) values ('" + CustID + "','" + CustName + "','" + CardScheme + "','" + Outlet + "','" + Terminal + "','" + Date + "','" + DateTime + "','" + Amount + "')", connection);
        com.ExecuteNonQuery();
    }
    connection.Close();
}
catch (Exception ex)
{
    MessageBox.Show(ex.Message);
}
finally
{
    MessageBox.Show("Data Inserted Successfully.");
}

有人能告诉我如何删除空行以便只插入数据吗?!

EN

Stack Overflow用户

发布于 2011-08-11 16:52:12

为什么不在插入空行之前直接忽略它们呢?

代码语言:javascript
复制
if(string.IsNullOrEmpty(ID + CustName + CardScheme /*.. and so on */))
{
    continue;
}

如下所示:

代码语言:javascript
复制
for (int i = 0; i < dsExcel.Tables[0].Rows.Count; i++)
{
    string ID = ds.Tables[0].Rows[i][0].ToString();
    Int16 CustID = Convert.ToInt16(ID);
    string CustName = dsExcel.Tables[0].Rows[i][1].ToString();
    string CardScheme = dsExcel.Tables[0].Rows[i][2].ToString();
    string Outlet = dsExcel.Tables[0].Rows[i][3].ToString();
    string TerminalNum = dsExcel.Tables[0].Rows[i][4].ToString();
    Int32 Terminal = Convert.ToInt32(TerminalNum);
    string Date1 = dsExcel.Tables[0].Rows[i][5].ToString();
    DateTime Date = Convert.ToDateTime(Date1);
    string Time = dsExcel.Tables[0].Rows[i][6].ToString();
    DateTime DateTime = Convert.ToDateTime(Time);
    string Amount1 = ds.Tables[0].Rows[i][7].ToString();
    double Amount = Convert.ToDouble(Amount1);

    /*** Add this if-statement to you code! ***/
    if(string.IsNullOrEmpty(ID + CustName + CardScheme + Outlet + TerminalNum + Date1 + Time + Amount1))
    {
        continue;
    }

    SqlCommand com = new SqlCommand("insert into Customer(CustID,CustName,CardScheme,Outlet,TerminalNum,TranDate,TranDateTime,Amount) values ('" + CustID + "','" + CustName + "','" + CardScheme + "','" + Outlet + "','" + Terminal + "','" + Date + "','" + DateTime + "','" + Amount + "')", connection);
    com.ExecuteNonQuery();
}
票数 1
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页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接:

https://stackoverflow.com/questions/7023140

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