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QuestionAny one knows how to access Oracle DB on Unix using C# service application ? Pin
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AnswerRe: Any one knows how to access Oracle DB on Unix using C# service application ? Pin
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Questionsearching an index with FindIndex() method Pin
Yustme10-Jan-07 10:48
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AnswerRe: searching an index with FindIndex() method Pin
Stefan Troschuetz10-Jan-07 11:18
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AnswerRe: searching an index with FindIndex() method Pin
hpjchobbes10-Jan-07 12:50
hpjchobbes10-Jan-07 12:50 
The MSDN information is what I would read to get the information, as well as some sample code, though I do have some trouble understaing it sometimes. From my understanding (still learning) the FindIndex takes a predicate. The predicate is basically a function that accepts a value of whatever type your list contains, does a calculation, and returns true or false.

So let's say I have a List of INTs. If I wanted to search for the first occurance of a number greater than 5, I would create a function like this:

<br />
public bool IsGreaterThan5(int i)<br />
{<br />
if(i > 5)<br />
   return true;<br />
else<br />
   return false;<br />
}<br />


Then, when I want to find the first instance in my INT list that is greater than 5, I do this.

<br />
int FirstOccurance = myIntList.FindIndex(IsGreaterThan5);<br />


There are also other variations of the FindIndex function that you can use:
List.FindIndex(int32, predicate) - Limits the search range from the int32 element to the end of the list
List.FindIndex(int32, int32, predicate) - Limits the search range from int32 to int32.

Hope that helps!
GeneralRe: searching an index with FindIndex() method [modified] Pin
Yustme10-Jan-07 20:49
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