相关疑难解决方法(0)

这就是问题:无论我做什么,我都无法让MySqlCommand真正做好准备.我尝试从http://dev.mysql.com/doc/refman/5.6/en/connector-net-programming-prepared.html复制/粘贴示例代码,只做了很小的修改,但这实际上并不起作用.

我搜索谷歌尝试找到一个解决方案,但最接近的是:MySql语句准备"不坚持",实际上没有回答问题.

这是我测试的表格设置:

CREATE  TABLE `test`.`test_prepared_query` (
  `id` INT NOT NULL ,
  `value` INT NOT NULL ,
  PRIMARY KEY (`id`) );

用C#测试代码

public void TestPrepareQuery()
{
    connString = new MySqlConnectionStringBuilder();
    connString.Server = "localhost";
    connString.Database = "test";
    connString.UserID = "someuserid";
    connString.Password = "somepassword";

    bool isprepared;

    using (MySqlConnection conn = new MySqlConnection(connString.ToString()))
    {
        MySqlCommand cmd = new MySqlCommand(
            "INSERT INTO test_prepared_query VALUES (@id, @value)", conn);
        cmd.Connection.Open();

        cmd.Prepare();
        isprepared = cmd.IsPrepared; // isprepared is false here

        cmd.Parameters.AddWithValue("@id", …