为什么 if (mysqlReader2[0].ToString() != “0” )
这句提示：
错误 1 无法将类型“object”隐式转换为“int”。存在一个显式转换(是否缺少强制转换?)
代码如下：
connection = new MySql.Data.MySqlClient.MySqlConnection(MyConnectionString);
connection.Open();
MySqlCommand cmd_board = connection.CreateCommand();
MySqlCommand cmd_board2 = connection.CreateCommand();
cmd_board.CommandText = "SELECT wr_2 FROM gs_write_" + config.my_serv_table + " WHERE wr_1 != 1 AND wr_subject !='' LIMIT 0,5 ";
cmd_board2.CommandText = "SELECT count(*) as count1 FROM gs_write_" + config.my_serv_table + " WHERE wr_1 != 1 AND wr_subject !='' LIMIT 0,5 ";
MySql.Data.MySqlClient.MySqlDataReader mysqlReader1 = cmd_board.ExecuteReader();
MySql.Data.MySqlClient.MySqlDataReader mysqlReader2 = cmd_board2.ExecuteReader();
if (mysqlReader2[0].ToString() != "0" )
{
linkLabel1.Text = "";
while (mysqlReader1.Read())
{
if (mysqlReader1["wr_2"].ToString().Length > 10)
{
linkLabel1.Text += "\n" + mysqlReader1["wr_2"].ToString().Substring(0, 10) + "\n";
}
else
{
linkLabel1.Text += "\n" + mysqlReader1["wr_2"].ToString() + "\n";
}
}
}
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