Solved

dataset find guid by column value

Posted on 2007-04-03
1
318 Views
Last Modified: 2013-12-16
I have a windows app vb.net 2005.

I want to find a guid by passing in a value and a column name

countries table
GUID
name
longname

I want to do something like
guid=ctable.findGUID("name", "USA")

or
guid=ctable.findGUID("longname", "United States")
0
Comment
Question by:jackjohnson44
1 Comment
 
LVL 25

Accepted Solution

by:
dstanley9 earned 500 total points
ID: 18845216
try this:

public Guid FindGuid(DataTable table, string column, string value)
{
   // see if the column exists
   if(table.Columns[column] == null)
    throw new Application Exception("Column " + column + " does not exist.");

   DataRow[] rows = table.Select(column + " = '" + value + "'");
   if(rows.Length == 0) // no match found
      return null;
   if(rows.Length > 1) // multiple matches found
      throw new Application Exception("Too many matches.");
   
   return (Guid)rows[0]["GUID"];
}
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

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

Update (December 2011): Since this article was published, the things have changed for good for Android native developers. The Sequoyah Project (http://www.eclipse.org/sequoyah/) automates most of the tasks discussed in this article. You can even fin…
Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
The viewer will learn how to use and create keystrokes in Netbeans IDE 8.0 for Windows.
The viewer will learn how to synchronize PHP projects with a remote server in NetBeans IDE 8.0 for Windows.

828 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