Question

我使用以下代码将新行插入现有数据库表：

     string strSQL2= "SELECT * FROM Staff";
     SqlAdapter dataAdapter = new SqlDataAdapter(strSQL2, conString);
     Dataset ds = new DataSet();
     dataAdapter.Fill(ds);
     DataRow newRow = ds.Tables[0].NewRow();
     newRow["firstName"] = "Michael";
     newRow["lastName"] = "Jackson";
     newRow["username"] = "Michi";
     newRow["admin"] = "0";
     ds.Tables[0].Rows.Add(newRow);
     var cmb = new SqlCommandBuilder(dataAdapter);
     dataAdapter.Update(ds);

该代码旨在更新原始数据库，但事实并非如此。我没有得到任何错误。在SQL事件探查器中，我没有看到任何收到的命令。可能是什么问题？

Answer 1

为什么不尝试更传统？：

private void InsertStaff()
{
    string query = "INSERT INTO Staff (firstname, lastname, username, admin) VALUES (@firstname, @lastname, @username, 0)";

    SqlParameter[] parameters = new SqlParameter[3];
    parameters[0] = new SqlParameter("@firstname", SqlDbType.Varchar).Value = @firstname;
    parameters[1] = new SqlParameter("@lastname", SqlDbType.Varchar).Value = @lastname;
    parameters[2] = new SqlParameter("@username", SqlDbType.Varchar).Value = @username;

    ExecuteNonQuery(query, parameters);
}


private void ExecuteNonQuery(string query, SqlParameter[] parametros)
{
    var conn = new SqlConnection("Data Source=" + Server + ";Initial Catalog=" + Database + ";User Id=" + Username + ";Password=" + Password + ";");
    try
    {
        conn.Open();
        SqlCommand command = conn.CreateCommand();
        command.CommandText = query;

        foreach (SqlParameter p in parametros)
        {
            command.Parameters.Add(p);
        }

        command.ExecuteNonQuery();
    }
    catch (Exception)
    {
        throw;
    }
    finally
    {
        conn.Dispose();
        conn.Close();
    }
}

无法通过SqlAdapter插入行

1 个答案: