c# - 获取插入行的 ID

Question

我正在尝试使用 sql 输出子句从数据库中获取新插入记录的 ID，即

insert into table1(forename, surname) output inserted.id values(@forename, @surname)

我正在尝试像这样捕获 id:

Int32 id = (int)command.ExecuteScalar;

这是给我一条错误信息:

Compiler Error Message: CS0428: Cannot convert method group 'ExecuteScalar' to non-delegate type 'int'. Did you intend to invoke the method?

不确定我做错了什么。

这是现有代码的大量摘录:

using (connection = new SqlConnection(ConfigurationManager.AppSettings["connString"]))
{
    using (command = new SqlCommand("insert into table1(forename, surname) OUTPUT INSERTED.ID values(@forename, @surname)", connection))
    {
        command.Parameters.Add("@forename", SqlDbType.VarChar, 255).Value = forename;
        command.Parameters.Add("@surname", SqlDbType.VarChar, 255).Value = surname;

        command.Connection.Open();
        id = (int)command.ExecuteScalar;
    }
}

Answer 1

尝试 id = (int) command.ExecuteScalar()。你刚刚离开了 parent 。