Help with List<>..Find()

[=?Utf-8?B?UGhpbA==?=]

I have seen the samples for Find that explain how to use the predicate, but
they are always searching for a pre-defined value. What I don't understand
is how to search for a random value stored in a variable.

For example,

List<intitems;
int val=3;

items.Add(1);
items.Add(2);
items.Add(3);
items.Add(4);

How do I search the list "items" for the value in the variable val?

Thanks,

Phil

[zacks@construction-imaging.com]

Re: Help with List&lt;&gt;..F ind()

On May 7, 9:17 am, Phil <phi...@sbcglob al.netwrote:

I have seen the samples for Find that explain how to use the predicate, but
they are always searching for a pre-defined value.  What I don't understand
is how to search for a random value stored in a variable.
>
For example,
>
List<intitems;
int val=3;
>
items.Add(1);
items.Add(2);
items.Add(3);
items.Add(4);
>
How do I search the list "items" for the value in the variable val?
>
Thanks,
>
Phil

One way is to use the .Contains method, but it will only find the
first one. There is also .FindExactStrin g method if the list is a list
of strings.

[parez]

Re: Help with List&lt;&gt;..F ind()

On May 7, 9:17 am, Phil <phi...@sbcglob al.netwrote:

I have seen the samples for Find that explain how to use the predicate, but
they are always searching for a pre-defined value. What I don't understand
is how to search for a random value stored in a variable.
>
For example,
>
List<intitems;
int val=3;
>
items.Add(1);
items.Add(2);
items.Add(3);
items.Add(4);
>
How do I search the list "items" for the value in the variable val?
>
Thanks,
>
Phil

int b = items.Find(dele gate(int a) { return a == val; });

[Jon Skeet [C# MVP]]

Re: Help with List&lt;&gt;..F ind()

On May 7, 2:26 pm, parez <psaw...@gmail. comwrote:

int b = items.Find(dele gate(int a) { return a == val; });

Or in C# 3:

int b = items.Find(a =a==val);

Jon

[sloan]

Re: Help with List&lt;&gt;..F ind()


If you're only concerned with int's..you have an answer already.

If you're interested in this .. in general..I'd suggest:
http://ludwig-stuyck.spaces.l ive.com/Lists/cns!E36D9BA98FC 913B3!296/

Find the C# Generics article (in english) and bookmark and read that.

...

"Phil" <phil78@sbcglob al.netwrote in message
news:B1EE89D2-7DD5-41AF-8A90-EB4D98E02510@mi crosoft.com...

>I have seen the samples for Find that explain how to use the predicate, but
they are always searching for a pre-defined value. What I don't
understand
is how to search for a random value stored in a variable.
>
For example,
>
List<intitems;
int val=3;
>
items.Add(1);
items.Add(2);
items.Add(3);
items.Add(4);
>
How do I search the list "items" for the value in the variable val?
>
Thanks,
>
Phil

[Leo Seccia]

Re: Help with List&lt;&gt;..F ind()

Try:
items.Select(i =i == val);
or
items.Find(i =i == val);
or
items.Where(i =i == val);

depending on what you mean by Find... refer to

http://msdn.microsoft.com/en-us/vcsharp/aa336746.aspx

Regards,
Leo

"Phil" <phil78@sbcglob al.netwrote in message
news:B1EE89D2-7DD5-41AF-8A90-EB4D98E02510@mi crosoft.com...

>I have seen the samples for Find that explain how to use the predicate, but
they are always searching for a pre-defined value. What I don't
understand
is how to search for a random value stored in a variable.
>
For example,
>
List<intitems;
int val=3;
>
items.Add(1);
items.Add(2);
items.Add(3);
items.Add(4);
>
How do I search the list "items" for the value in the variable val?
>
Thanks,
>
Phil

[Ben Voigt [C++ MVP]]

Re: Help with List&lt;&gt;..F ind()

Phil wrote:

I have seen the samples for Find that explain how to use the
predicate, but they are always searching for a pre-defined value.
What I don't understand is how to search for a random value stored in
a variable.

Are you sure you don't want IndexOf instead of Find?