我的 Combobox 没有显示我的 SQL 属性“TimeBlock”中的值,而是显示 System.Data.DataRow 5 次。我的代码有什么问题?
代码:
//DAL:
public class DAL{
string ConnectionString = "server=ICSSQL13\\Grupp28,1528; Trusted_Connection=yes; database=Yoloswag";
public DataTable StoreSqlDataInComboBoxTP()
{
SqlConnection Conn = new SqlConnection(ConnectionString);
Conn.Open();
string StoreSqlDataInComboBoxTP = "SELECT TimeBlock FROM TimePeriod GROUP BY TimeBlock";
SqlCommand Cmd = new SqlCommand(StoreSqlDataInComboBoxTP, Conn);
SqlDataAdapter Adapter = new SqlDataAdapter(Cmd);
DataSet DSet = new DataSet();
Adapter.Fill(DSet);
Adapter.Dispose();
Cmd.Dispose();
Conn.Close();
Conn.Close();
return DSet.Tables[0];
}
}
//Controller:
public class Controller
{
DAL Dal = new DAL();
public DataTable storesqldataincomboboxtp()
{
return Dal.StoreSqlDataInComboBoxTP();
}
}
//View:
public partial class Booking : Form
{
Controller controller = new Controller();
DataTable DTable = new DataTable();
DataSet DSet = new DataSet();
//Ignore string UserName
public Booking(string UserName){
DTable = controller.storesqldataincomboboxtp();
if (DTable.Rows.Count > 0)
{
for (int i = 0; i < DTable.Rows.Count; i++)
{
CBTime.Items.Add(DTable.Rows[i].ToString());
}
}
}
}
我想显示“TimeBlock”中存储的内容,而不是 5 System.Data.DataRow。“SELECT TimeBlock From TimePeriod GROUP BY TimeBlock”显示:“08-00 - 10:00”“10:00 - 12:00”“12:00 - 14:00”“14:00 - 16:00”“16: 00 - 18:00"
我该如何解决这个问题?
谢谢