数据读取器到数据表复制Rcore
问题说明
如何从DataReader传输Datatable中记录的所有内容
当我使用
datatable.load(datareader);
第一条记录丢失了
表示
我的查询给出4条记录数据表只有3条记录缺少第一条记录；
How To Transfer the all Recored in Datatable From DataReader
when i use
datatable.load(datareader);
the first record is missing
means
my query is giving 4 record dataTable Has only 3 record the first record is missing;
正确答案
有根据的猜测:
您在执行此操作吗?
Without seeing your code, I can only make an educated guess:
Are you doing this:
SqlDataReader reader = cmd.ExecuteReader();
DataTable dt = new DataTable();
if (reader.Read())
{
dt.Load(reader);
}
因为这是问题所在:Read方法从列表中删除了一条记录...
此代码已成功运行，但缺少最高记录"
是的-Read()方法调用将删除第一条记录.不要叫Read.相反，请检查 reader.HasRows [
试试:
Because, if you are, that''s your problem: the Read method removes one of the records from the list...
"this code is run succesfully but top record is missing"
Yes - the Read() method call removes the first record. Don''t call Read. Instead, check reader.HasRows[^]
"but any option to send data into datatable from datareader"
Try:
SqlDataReader reader = cmd.ExecuteReader();
DataTable dt = new DataTable();
if (reader.HasRows)
{
dt.Load(reader);
}
这篇好文章是转载于：学新通技术网
