473,416 Members | 1,836 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,416 software developers and data experts.

DataReader

Hi I'm using a SqlDataReader to read results from a SQL
view that returns 10 columns.
Is there anyway I can reader the columns based on their
names rather than their position?

strQuery = "SELECT customerid, orderno from orders where
orderID = 1";
SqlDataReader reader = cmd.ExecuteReader();
while(reader.Read())
{
myOrderNo = reader.GetInt32(1);
}

instead of using reader.GetInt32(1), is there any syntax
that will support reader("OrderNo") or something like that?

Thanks for your help.

Nov 15 '05 #1
3 2665
Hi,

I do it all the time !

Did you tried it?

Just a comment, remember that you are getting the Item property in this case
that is the indexer , therefore you have to write
reader["OrderNo"] using [] instead of ()

Hope this help,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation

"lakshmi" <lm@replytonewsgroup.net> wrote in message
news:03****************************@phx.gbl...
Hi I'm using a SqlDataReader to read results from a SQL
view that returns 10 columns.
Is there anyway I can reader the columns based on their
names rather than their position?

strQuery = "SELECT customerid, orderno from orders where
orderID = 1";
SqlDataReader reader = cmd.ExecuteReader();
while(reader.Read())
{
myOrderNo = reader.GetInt32(1);
}

instead of using reader.GetInt32(1), is there any syntax
that will support reader("OrderNo") or something like that?

Thanks for your help.

Nov 15 '05 #2
thanks a lot Ignacio. It worked.
-----Original Message-----
Hi,

I do it all the time !

Did you tried it?

Just a comment, remember that you are getting the Item property in this casethat is the indexer , therefore you have to write
reader["OrderNo"] using [] instead of ()

Hope this help,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation

"lakshmi" <lm@replytonewsgroup.net> wrote in message
news:03****************************@phx.gbl...
Hi I'm using a SqlDataReader to read results from a SQL
view that returns 10 columns.
Is there anyway I can reader the columns based on their
names rather than their position?

strQuery = "SELECT customerid, orderno from orders where
orderID = 1";
SqlDataReader reader = cmd.ExecuteReader();
while(reader.Read())
{
myOrderNo = reader.GetInt32(1);
}

instead of using reader.GetInt32(1), is there any syntax
that will support reader("OrderNo") or something like that?
Thanks for your help.

.

Nov 15 '05 #3
You can use the GetOrdinal property and assign it to a string. This way you
get the performance of the Index based approach with the readability of the
Literal name. like this...

DIM fieldCityPos as integer=reader1.getordinal("city")
Using the column slows things down because the column index needs to be
resolved each time a row is read...

HTH,

Bill
"lakshmi" <lm@newsgroup.net> wrote in message
news:89****************************@phx.gbl...
thanks a lot Ignacio. It worked.
-----Original Message-----
Hi,

I do it all the time !

Did you tried it?

Just a comment, remember that you are getting the Item

property in this case
that is the indexer , therefore you have to write
reader["OrderNo"] using [] instead of ()

Hope this help,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation

"lakshmi" <lm@replytonewsgroup.net> wrote in message
news:03****************************@phx.gbl...
Hi I'm using a SqlDataReader to read results from a SQL
view that returns 10 columns.
Is there anyway I can reader the columns based on their
names rather than their position?

strQuery = "SELECT customerid, orderno from orders where
orderID = 1";
SqlDataReader reader = cmd.ExecuteReader();
while(reader.Read())
{
myOrderNo = reader.GetInt32(1);
}

instead of using reader.GetInt32(1), is there any syntax
that will support reader("OrderNo") or something like that?
Thanks for your help.

.

Nov 15 '05 #4

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

6
by: Yasutaka Ito | last post by:
Hi, My friend had a little confusion about the working of DataReader after reading an article from MSDN. Following is a message from him... <!-- Message starts --> I was going thru DataReader...
20
by: Mark | last post by:
Hi all, quick question , a DataView is memory resident "view" of data in a data table therefore once populated you can close the connection to the database. Garbage collection can then be used to...
1
by: Brent | last post by:
I'm having a hard time wrapping my head around how to build a multi-dimensional array of n length out of a DataReader loop. Take this pseudo-code: ======================================= public...
6
by: Yasutaka Ito | last post by:
Hi, My friend had a little confusion about the working of DataReader after reading an article from MSDN. Following is a message from him... <!-- Message starts --> I was going thru DataReader...
7
by: Diffident | last post by:
Hello All, I would like to use DataReader based accessing in my Data Access Layer (DAL). What is considered to be a best practice while returning from a DAL method that executes a query and...
0
BarryA
by: BarryA | last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
1
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
0
by: Hystou | last post by:
There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
0
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
0
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
0
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
0
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing,...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.