Question

我试图使用datagridview将数据插入数据库，我正在使用以下代码，但是它添加了多条单条记录的记录，任何帮助都可以做到

string connectionString = 
    "Data Source=S;Initial Catalog=Gits_Retailer;User ID=sa;Password=sa";

SqlConnection SqlConn = new SqlConnection(connectionString);
SqlConn.Open();

DataSet ds = new DataSet();
for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)
{
    SqlDataAdapter da = 
        new SqlDataAdapter("INSERT INTO unit_master VALUES('" 
                            + dataGridView1.Rows[i].Cells[0].Value 
                            + "')", SqlConn);    
    da.Fill(ds);                        
    SqlConn.Close()
}

Answer 1

第一次插入DB会成功，但任何后续操作都会失败，你正在关闭for循环中的SqlConnection。

Answer 2

试试这个

string connectionString = 
        "Data Source=S;Initial Catalog=Gits_Retailer;User ID=sa;Password=sa";

    SqlConnection SqlConn = new SqlConnection(connectionString);
    SqlConn.Open();

    DataSet ds = new DataSet();
    for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)
    {
        SqlDataAdapter da = 
            new SqlDataAdapter("INSERT INTO unit_master VALUES('" 
                                + dataGridView1.Rows[i].Cells[0].Value 
                                + "')", SqlConn);    
        da.Fill(ds);                                
    }
SqlConn.Close()

Answer 3

试试这个

string connectionString = 
    "Data Source=S;Initial Catalog=Gits_Retailer;User ID=sa;Password=sa";

SqlConnection SqlConn = new SqlConnection(connectionString);
SqlConn.Open();
SqlCommand cmd = SqlConn.CreateCommand();
for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)
{

    cmd.CommandText ="INSERT INTO unit_master VALUES('" 
                            + dataGridView1.Rows[i].Cells[0].Value 
                            + "')";  
    cmd.ExecuteNonQuery();

}
SqlConn.Close();

datagridview添加多条记录

3 个答案: