小编Bri*_*ton的帖子

我正在尝试使用 C# 编程语言从 SQL 表中获取所有数据并将其存储在列表中。

我使用的SQL语句是：

private string cmdShowEmployees = "SELECT * FROM Employees;";

这与函数在同一个类中使用

public List<string> showAllIdData()
{
  List<string> id = new List<string>();
  using (sqlConnection = getSqlConnection())
  {
    sqlCommand.Connection = sqlConnection;
    sqlCommand.CommandText = cmdShowEmployees;
    SqlDataReader reader = sqlCommand.ExecuteReader();
    while (reader.Read()) {
      id.Add(reader[0].ToString());
    }
    return id;
  }
}

和这里

public List<string> showAllActiveData()
{
  List<string> active = new List<string>();
  using (sqlConnection = getSqlConnection())
  {
    sqlCommand.Connection = sqlConnection;
    sqlCommand.CommandText = cmdShowEmployees;
    SqlDataReader reader = sqlCommand.ExecuteReader();
    while (reader.Read()) {
      active.Add(reader[1].ToString());
    }
    return active; …