?
Solved

Find a table column based on column name in ADO .NET

Posted on 2007-03-24
1
Medium Priority
?
229 Views
Last Modified: 2010-04-23
Hi,
I am in need of help trying to convert some old DAO code to ADO.NET
I need to find records in a table to identify and set some other variable for later use. Basically I need to find measurement units. Here is my old VB6 code:

query = "SELECT DISTINCTROW ScanOrder, NetDaqOrder, NetDaq, Channel, "
query = query & "NameLong, NameShort, LowRange, HighRange, "
query = query & "SensorID , InputUnits, Unit, SignalType, CalibrationGroup, "
query = query & "LowMeas, LowReal, MedMeas, MedReal, HighMeas, HighReal, OrderNum "
query = query & "From AIN_Definition "
query = query & "ORDER BY OrderNum;"

Dim query, stuff As Recordset
Set stuff = MyDb.OpenRecordset(query)

Do Until stuff.EOF
      Select Case stuff.Fields("Unit")
              Case "°C", "°F"
                      localtype% = PhysTempe%
                Case "kPa"
                          localtype% = PhysPrAbs2%
                Case "in-lbs"
                          localtype% = PhysTorqu%
      End Select
Loop

My new code uses the same query and I have made the connection, created a dataset and a datatable. Here is my VB.NET code so far:

Dim daAinDefInit As New OleDb.OleDbDataAdapter(query, conn)
Dim dtAinDefInit As New DataTable
Dim drAinDefInit As DataRow
Dim dsAinDefInit As New DataSet("dsAinDefInit")
daAinDefInit.Fill(dtAinDefInit)

My question is: How do I loop through the dataset or dataTable searching the "Unit" column like I did in VB6 above? By the way, the Unit column is not always in the same position in the table for each project so I don't know if it will be in column 1 or 20 or somewhere in between. So I need to be able to find the column based on the string "Unit"

Appreciate any help to point me in the right direction.

Thanks,
Charlie
0
Comment
Question by:charlieb01
1 Comment
 
LVL 34

Accepted Solution

by:
Sancler earned 2000 total points
ID: 18787716
dtAinDefInit.Columns("Unit")

Roger
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: Kraeven
Introduction Remote Share is a simple remote sharing tool, enabling you to see, add and remove remote or local shares. The application is written in VB.NET targeting the .NET framework 2.0. The source code and the compiled programs have been in…
A while ago, I was working on a Windows Forms application and I needed a special label control with reflection (glass) effect to show some titles in a stylish way. I've always enjoyed working with graphics, but it's never too clever to re-invent …
this video summaries big data hadoop online training demo (http://onlineitguru.com/big-data-hadoop-online-training-placement.html) , and covers basics in big data hadoop .
Screencast - Getting to Know the Pipeline
Suggested Courses
Course of the Month17 days, 8 hours left to enroll

831 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question