Solved

loop thru fields in a dataset

Posted on 2008-06-13
8
283 Views
Last Modified: 2013-11-26
Hi,
I need to build a string value based on the fields in my dataset.
So if there are say 3 or 9 fields in the datset row, i need to loop thru the fields and then simply add them to a string

thanks
0
Comment
Question by:CraigLazar
  • 4
  • 4
8 Comments
 
LVL 43

Expert Comment

by:TimCottee
ID: 21777093
Hello CraigLazar,

Dim MyString As String = String.Join(",", MyDataSet.Tables(0).Rows(0).ItemArray)

For example.

Regards,

TimCottee
0
 
LVL 4

Author Comment

by:CraigLazar
ID: 21777179
Hi Tim
i get this error

code
Dim MyString As String = String.Join(",", tmpds.Tables(bs.DataMember).Rows(0).ItemArray)

"Unable to cast object of type 'System.Object[]' to type 'System.String[]'."
0
 
LVL 43

Accepted Solution

by:
TimCottee earned 50 total points
ID: 21777200
CraigLazar,

I have to admit I didn't test it and wondered whether that might be a problem.

In that case you may have to do it the old fashioned way (sort of).

        Dim sbData As StringBuilder = New StringBuilder
        For Each itmData As Object In ds.Tables(0).Rows(0).ItemArray
            sbData.Append(",").Append(CType(itmData, String))
        Next
        Dim MyString As String = sbData.ToString.Substring(1)

TimCottee
0
3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

 
LVL 4

Author Comment

by:CraigLazar
ID: 21777821
hi i thought as much, and thats what i have done
thanks man
have a good weekend

cheers
0
 
LVL 43

Expert Comment

by:TimCottee
ID: 21777824
CraigLazar,

You too, let's hope the sun shines!

TimCottee
0
 
LVL 4

Author Comment

by:CraigLazar
ID: 21777972
hi Tim, sorry hope u do not mind me asking u anoterh question on the same line here - how would i get the same field information of a bindingsource object? cause i take my dataset and i give it to a bindingsource object for the form

thanks
0
 
LVL 43

Expert Comment

by:TimCottee
ID: 21777998
CraigLazar,

Good question, I would suggest that you try explicitly casting it. Something along the lines of:

        For Each itmData As Object In CType(MyObject.BindingSource,System.Data.DataSet).Tables(0).Rows(0).ItemArray

TimCottee
0
 
LVL 4

Author Comment

by:CraigLazar
ID: 21778774
ok i hacked atround and got this working :)

tmpDataString = getRowData(drv.Row.ItemArray())

wehre getRowData is my little array looping function

cheers
0

Featured Post

Gigs: Get Your Project Delivered by an Expert

Select from freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely and get projects done right.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Error on Add method 1 50
Entity Framework 7 41
I need help making a collection from a class in VB.Net 3 32
Variable Event ? 3 27
Recently while returning home from work my wife (another .NET developer) was murmuring something. On further poking she said that she has been assigned a task where she has to serialize and deserialize objects and she is afraid of serialization. Wha…
This document covers how to connect to SQL Server and browse its contents.  It is meant for those new to Visual Studio and/or working with Microsoft SQL Server.  It is not a guide to building SQL Server database connections in your code.  This is mo…
This tutorial gives a high-level tour of the interface of Marketo (a marketing automation tool to help businesses track and engage prospective customers and drive them to purchase). You will see the main areas including Marketing Activities, Design …
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…

808 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