public int tieziCount(){
conn = new SqlConnection("server=.;database=BBS;uid=sa;pwd=");
conn.Open();
string sql3 = "select count(*) from fabiaoneirong";
da = new SqlDataAdapter(sql3,conn);
da.Fill(ds,"aa");
int a =
int.Parse(ds.Tables["aa"].Rows[0][0].ToString());
return a;
}
我想将表的行的总数传出去,但是怎么做啊??
int a = int.Parse(ds.Tables["aa"].Rows[0][0].ToString());这里出错了。
给个详细代码好么？？谢谢~~~~~~
------解决方案--------------------------------------------------------
用这个函数就行了，建议用ExecuteScalar单行单列数据。
- C# code
/// <summary> /// 返回一个数据 /// </summary> /// <param name="strSql"></param> /// <returns></returns> public string ExecuteScalar(string strSql) { string tmp = ""; SqlConnection conn = new SqlConnection(ConnectionString); try { conn.Open(); SqlCommand cmd = new SqlCommand(strSql, conn); tmp = cmd.ExecuteScalar().ToString(); conn.Close(); } catch { conn.Close(); } finally { conn.Close(); conn.Dispose();//释放连接 } return tmp; } //调用 string sql3 = "select count(*) from fabiaoneirong"; int count=Convert.Int32(ExecuteScalar(sql3));//行总数
------解决方案--------------------------------------------------------
int count=Convert.ToInt32(ExecuteScalar(sql3));//行总数
也可用int.Parse转换成整型，需注意下异常处理。
------解决方案--------------------------------------------------------
ds.Tables["aa"].Rows.Count