getting first element from array

[CSharper]

I am trying to use the following; I have an array with bunch of values
in it. I am trying to find a value that contains part of the string I
am passing
eg
string[] array = {"help","Csharp rocks"}

if (array.Contains<string>("Csharp"))
{
//here I want to get the actual string like "Csharp rocks"
string str = array.First<string>(); //Here there is a way, I can
check if the string has the value using lambda expression, not sure
how.
}

Could someone help?
Thanks,

[Jon Skeet [C# MVP]]

CSharper <cs******@gmx.comwrote:

I am trying to use the following; I have an array with bunch of values
in it. I am trying to find a value that contains part of the string I
am passing
eg
string[] array = {"help","Csharp rocks"}

if (array.Contains<string>("Csharp"))
{
//here I want to get the actual string like "Csharp rocks"
string str = array.First<string>(); //Here there is a way, I can
check if the string has the value using lambda expression, not sure
how.
}

You can avoid the "contains" bit to start with by using FirstOrDefault:

string first = array.FirstOrDefault(x =x.Contains("Csharp"));

if (first != null)
{
...
}

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
World class .NET training in the UK: http://iterativetraining.co.uk

[Ignacio Machin ( .NET/ C# MVP )]

On Apr 23, 3:00*pm, CSharper <[e-mail]:

I am trying to use the following; I have an array with bunch of values
in it. I am trying to find a value that contains part of the string I
am passing
eg
string[] array = {"help","Csharp rocks"}

if (array.Contains<string>("Csharp"))
{
* *//here I want to get the actual string like "Csharp rocks"
* *string str = array.First<string>(); //Here there is a way, I can
check if the string has the value using lambda expression, not sure
how.

}

Could someone help?
Thanks,

Hi,

myStringList.Find(delegate(string item) { return
item.Contains("MyStr"); });

Love generics :)

If you are in 3.5 you could replace it with a Lambda expression

[CSharper]

On Apr 23, 2:18 pm, "Ignacio Machin ( .NET/ C# MVP )"
<[e-mail]:

On Apr 23, 3:00 pm, CSharper <[e-mail]:

I am trying to use the following; I have an array with bunch of values
in it. I am trying to find a value that contains part of the string I
am passing
eg
string[] array = {"help","Csharp rocks"}

if (array.Contains<string>("Csharp"))
{
//here I want to get the actual string like "Csharp rocks"
string str = array.First<string>(); //Here there is a way, I can
check if the string has the value using lambda expression, not sure
how.

}

Could someone help?
Thanks,

Hi,

myStringList.Find(delegate(string item) { return
item.Contains("MyStr"); });

Love generics :)

If you are in 3.5 you could replace it with a Lambda expression

Thank you both for the help.

[CSharper]

On Apr 23, 2:15 pm, Jon Skeet [C# MVP] <[e-mail]:

CSharper <[e-mail]:

I am trying to use the following; I have an array with bunch of values
in it. I am trying to find a value that contains part of the string I
am passing
eg
string[] array = {"help","Csharp rocks"}

if (array.Contains<string>("Csharp"))
{
//here I want to get the actual string like "Csharp rocks"
string str = array.First<string>(); //Here there is a way, I can
check if the string has the value using lambda expression, not sure
how.
}

You can avoid the "contains" bit to start with by using FirstOrDefault:

string first = array.FirstOrDefault(x =x.Contains("Csharp"));

if (first != null)
{
...

}

--
Jon Skeet - <[e-mail]>http://www.pobox.com/~skeet Blog:http://www.msmvps.com/jon.skeet
World class .NET training in the UK:http://iterativetraining.co.uk

quick question, what does (x=>x.Contains("Csharp")) means?
I know that, x is each element from the collection and it returns the
string of x. So does it mean, foreach element in the array first the
first element which contains the requested match?
x=>x.Contains() what does it do? It is evaluating to a bool and where
is the return here?
Thanks you very much?

[Jon Skeet [C# MVP]]

CSharper <cs******@gmx.comwrote:

quick question, what does (x=>x.Contains("Csharp")) means?
I know that, x is each element from the collection and it returns the
string of x. So does it mean, foreach element in the array first the
first element which contains the requested match?

Sort of, yes.

x=>x.Contains() what does it do? It is evaluating to a bool and where
is the return here?
Thanks you very much?

It's a lambda expression. I don't have time to go into lambda
expressions in detail right now, but hopefully you can find out a fair
amount about them just by searching with the right name.

My bluffer's guide gives *slightly* more detail:
http://csharpindepth.com/Articles/Ge...ersGuide3.aspx

<shameless plug>
If you want *lots* of detail, look at chapter 9 in my book - click on
the image on the left hand side of the page linked above.
</shameless plug>

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
World class .NET training in the UK: http://iterativetraining.co.uk

[Jon Skeet [C# MVP]]

CSharper <cs******@gmx.comwrote:

Thanks Jon and I appriciate your answer and the link and yes, I will
buy the book (based on the content on your page, it is worth
pursuing...)
I am starting to write a blog for myself and bunch of my friends at
work to keep up with C# and here it the link, if you have time have a
look at it and let me know if the content is right?
http://www.myfavoritemovies.us/csharp

Looks good to me, but I'd try to format the code a bit more clearly.
You're welcome to use the formatter I use for my blog:

http://csharpindepth.com/CodeFormatterTool.aspx

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
World class .NET training in the UK: http://iterativetraining.co.uk