但是好像行不通?
分析:
1、使用SqlCommandBuilder生成sql语然必须保证表有主键。否则自己写sql语句
string connString="你的连接字符串";
SqlConnection conn=new SqlConnection(connString);
conn.Open();
SqlDataAdapter adp = new SqlDataAdapter("select * from table",conn);
SqlCommandBuilder builder = new SqlCommandBuilder(adp);
adp.Update(dt);
2、string connString="你的连接字符串";
SqlConnection conn=new SqlConnection(connString);
conn.Open();
SqlDataAdapter adp = new SqlDataAdapter("select * from table",conn);
SqlCommandBuilder builder = new SqlCommandBuilder(adp);
adp.Update(dt);
adp.Dispose();