索引问题 在线等

[frank2828]

/// <summary>
/// 查询prod_news表中有多少条记录
/// </summary>
/// <returns>返回记录总数</returns>
public int Get_prod_news_Count()
{
try
{
string sqlStr = "select count(*) from prod_news";
OleDbCommand cmd = new OleDbCommand(sqlStr, con);
int count = 0;
List<prod_news> list = new List<prod_news>();
con.Open();
OleDbDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
prod_news prodnews = new prod_news();
prodnews.title = reader["title"].ToString();
list.Add(prodnews);
}
count = list.Count();
return count;
}
catch (Exception ee)
{

throw ee;
}
finally
{
con.Close();
}


连接的是ACCESS数据库 这是怎么回事 帮忙看看哪儿写错了 我是新手菜鸟~~~

[dalmeeme]

con.Open();
count=(int)cmd.ExecuteScalar();

其他不相关的都不要。

[EnForGrass]

string sqlStr = "select count(*) from prod_news";
改成
string sqlStr = "select * from prod_news";
试试
因为你用的cmd.ExecuteReader()

或者
你如果要用string sqlStr = "select count(*) from prod_news"
可以直接
count = Convert.ToInt32(cmd.Executescalar());

[frank2828]

3Q 给你分哈