Solved

Datatable add int column to extisting table

Posted on 2008-06-20
4
966 Views
Last Modified: 2012-05-05
I have got a datatable with several rows. I want to add a column of type int.
If I do following I get an error: 'dataType' argument cannot be null.
Parameter name: dataType

 ds.Tables[0].Columns.Add("NewId", System.Type.GetType("System.Int"));

After I have created the column I will loop through the rows in the table and fill values in the new column. How can I add this new int column?
0
Comment
Question by:johnkainn
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 19

Accepted Solution

by:
LordOfPorts earned 80 total points
ID: 21833320
Try System.Int32 instead of System.Int, i.e.:

ds.Tables[0].Columns.Add("NewId", System.Type.GetType("System.Int32"));
0
 
LVL 11

Assisted Solution

by:Mihai Stancescu
Mihai Stancescu earned 45 total points
ID: 21833340
You can try this:

ds.Tables[0].Columns.Add("NewId", typeof(int));
ds.Tables[0].AcceptChanges;


Hope this helps!

Regards,
Mishu
0
 

Expert Comment

by:icenhance
ID: 25445374
thanks
0
 
LVL 11

Expert Comment

by:Mihai Stancescu
ID: 25446338
Your welcome !
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

We all know that functional code is the leg that any good program stands on when it comes right down to it, however, if your program lacks a good user interface your product may not have the appeal needed to keep your customers happy. This issue can…
Introduction Hi all and welcome to my first article on Experts Exchange. A while ago, someone asked me if i could do some tutorials on object oriented programming. I decided to do them on C#. Now you may ask me, why's that? Well, one of the re…
There's a multitude of different network monitoring solutions out there, and you're probably wondering what makes NetCrunch so special. It's completely agentless, but does let you create an agent, if you desire. It offers powerful scalability …
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…

705 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