string sql = "update leadspeak set images=@images,content=@content,author=@author,title=@title where id=@id";
OleDbParameter[] para = new OleDbParameter[]{
new OleDbParameter("@id",leadSpeak.Id),
new OleDbParameter("@images",leadSpeak.Images),
new OleDbParameter("@content",leadSpeak.Content),
new OleDbParameter("@author",leadSpeak.Author),
new OleDbParameter("@title",leadSpeak.Title)
};
int num= DBHelper.ExecuteNonQuery(sql, CommandType.Text, para);
不报错误，但更新不了，返回的是0，谢谢！！
改成？再试试
C# code:
string sql = "update leadspeak set images=?,content=?,author=?,title=? where id=?";
OleDbParameter[] para = new OleDbParameter[]{
new OleDbParameter("?",leadSpeak.Id),
new OleDbParameter("?",leadSpeak.Images),
new OleDbParameter("?",leadSpeak.Content),
new OleDbParameter("?",leadSpeak.Author),
new OleDbParameter("?",leadSpeak.Title)
};
int num= DBHelper.ExecuteNonQuery(sql, CommandType.Text, para);
我手动添加基于CRecordSet类的派生类CODBCDemoSet类,是利用class wizard添加的。并且定义了一个全局变量CODBSDemoSet*m_pCommon.但是我程序不能运行。我跟踪了一下，到了m_pCommon->Isopen（）处发生错误，� ......
