c# - DataTable 列数据到组合框错误

Question

我想在组合框中显示数据表列中的所有数据。该表格用于订购新库存并保存到数据库中。

我遵循了本教程 http://youtu.be/cdkDHkXyVFI
我收到 2 条错误消息:

Error   1   The best overloaded method match for 'System.Data.Common.DbDataReader.GetString(int)' has some invalid arguments  
Error   2   Argument 1: cannot convert from 'string' to 'int'

代码:

public partial class neworderForm : Form
{

public neworderForm()
{
    InitializeComponent();
    fillCombo();
}
void fillCombo()
{
    string constring = @"Data Source=|DataDirectory|\LWADataBase.sdf";
    string Query = "select * from stockTBL; ";
    SqlCeConnection conDataBase = new SqlCeConnection(constring);
    SqlCeCommand cmdDataBase = new SqlCeCommand(Query, conDataBase);
    SqlCeDataReader myReader;
    try
    {
        conDataBase.Open();
        myReader = cmdDataBase.ExecuteReader();

        while (myReader.Read())
        {
            string sName = myReader.GetString("[Item Name]");
            comboItem.Items.Add(sName);
        }

        //displays a system error message if a problem is found
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
}

错误在 string sName = myReader.GetString("[Item Name]");

Answer 1

工作版本:

myReader.GetString(myReader.GetOrdinal("[Item Name]"));

引用:

获取字符串: http://msdn.microsoft.com/en-us/library/system.data.common.dbdatareader.getstring(v=vs.110).aspx

获取序数: http://msdn.microsoft.com/en-us/library/system.data.common.dbdatareader.getordinal.aspx