c# - 如何从数据库接收整数值到文本框中？

Question

我试图从 DB 接收一个整数值（vehicle_number）到一个文本框中，自动填充框......我该怎么做？请

using (OdbcConnection conexao = new OdbcConnection(con))
            {
                OdbcCommand commandResgVei = new OdbcCommand(textoResgataVeiculo, conexao);
                conexao.Open();

                OdbcDataReader result = commandResgVei.ExecuteReader();
                resultado.Read();
                vehicle_number.Text = ?????????????????????????? // how?
                name.Text = result["name"] as string;


            }

Answer 1

while(rdr.Read())
{
     text = rdr["<name>"].ToString();
}

如果你真的需要解析它，那么你可以尝试：

reader.GetInt32(/*index*/);

或者：

Int32.TryParse(text, out parsedInt)

Answer 2

尝试这个

vehicle_number.Text =  result["vehicle_number"]!=null? convert.toString( 
result["vehicle_number"]):"";

Answer 3

vehicle_number.Text = result["vehicle_number"] as string;

Answer 4

试试看

 vehicle_number.Text=reader.GetInt32(index);