?
Solved

HashTable Remove - Search Functionality.

Posted on 2004-04-14
2
Medium Priority
?
313 Views
Last Modified: 2010-04-15
Hi,

Here is my Hashtable.

HasTable myHash = new HashTable();

myHash.Add("~Chapter1-example1","A");
myHash.Add("~Chapter1-example2","B");
myHash.Add("~Chapter1-example3","C");
myHash.Add("~Chapter1-example4","D");


myHash.Add("~Chapter2-example1","A");
myHash.Add("~Chapter2-example2","B");
myHash.Add("~Chapter2-example3","C");
myHash.Add("~Chapter2-example4","D");
myHash.Add("~Chapter2-example5","E");



How can i remove all elements with key = "~Chapter1-"

kind of like a partial search, just want to remove all the keys, that start with the following key.



thanks,
steve.
0
Comment
Question by:steve_mick972
[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 Comments
 
LVL 12

Accepted Solution

by:
dfiala13 earned 2000 total points
ID: 10829467
Afraid you have to loop..

IDictionaryEnumerator en = myHash.GetEnumerator();

while ( en.MoveNext() )
{
         string sKey = (string)en.Key;
         if(sKey.IndexOf("partialkey") == 0)
               myHash.Remove(sKey);
}
0
 
LVL 1

Expert Comment

by:Troy_Lyne
ID: 10836834
Nest hashtables:

myHashCh1.Add("example1","A");
myHashCh1.Add("example2","B");
myHashCh1.Add("example3","C");
myHashCh1.Add("example4","D");

myHashCh2.Add("example1","A");
myHashCh2.Add("example2","B");
myHashCh2.Add("example3","C");
myHashCh2.Add("example4","D");
myHashCh2.Add("example5","E");

myHash.Add("~Chapter1-", myHashCh1);
myHash.Add("~Chapter2-", myHashCh2);
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

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

Introduction This article series is supposed to shed some light on the use of IDisposable and objects that inherit from it. In essence, a more apt title for this article would be: using (IDisposable) {}. I’m just not sure how many people would ge…
Entity Framework is a powerful tool to help you interact with the DataBase but still doesn't help much when we have a Stored Procedure that returns more than one resultset. The solution takes some of out-of-the-box thinking; read on!
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …
This is my first video review of Microsoft Bookings, I will be doing a part two with a bit more information, but wanted to get this out to you folks.

719 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