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  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 319
  • Last Modified:

HashTable Remove - Search Functionality.

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
steve_mick972
Asked:
steve_mick972
1 Solution
 
dfiala13Commented:
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
 
Troy_LyneCommented:
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

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