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Getting a key for the value, form a Hashtable

ba272
ba272 asked
on
Medium Priority
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Last Modified: 2010-04-16
Hi,

can someone provide me the syntax below where I am trying to access the value that corresponds witha given Key?

Thanks,
Bob

            public string GetValueDescriptor( string keyDescriptor )
            {
                  if ( this.ContainsKey( keyDescriptor ) )
                  {
                        return (string)this[keyDescriptor];
                  }
                  return null;
            }

            public string GetStreetDescriptor( string valueDescriptor )
            {
                  if ( ContainsValue( valueDescriptor ) )                  
                  {
                        return (string)this.????????
                  }
                  return null;
            }
Comment
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Commented:
Create a loop by yourself.
There is no Method to do it. And it's possible there are more than one keys having the same value.

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Author

Commented:
right. thanks.

Author

Commented:
how best to iterate in a HashTable?
Carl TawnSenior Systems and Integration Developer
CERTIFIED EXPERT
Commented:
Try something like:

          public string GetStreetDescriptor( string valueDescriptor )
          {
               if ( ContainsValue( valueDescriptor ) )              
               {
                   foreach (string key in this.Keys)
                   {
                       if (((string)this[key]) == valueDescriptor)
                           return (string)this[key];
                   }                    
               }
               return null;
          }
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