473,396 Members | 1,765 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,396 software developers and data experts.

Converting an Array to a Collection

I'm having a problem converting an array to a collection. The code I'm
using looks like the following:

CustomerInfo[] cArray;
Collection<CustomerInfo> cCollection = new Collection<CustomerInfo>(cArray);

The above code creates a collection from the array but the collection winds
up as a read-only collection. Is there an easy way to convert an array to a
collection and have it not be read-only?

Thanks,

Chuck Cobb
Apr 14 '06 #1
5 11255
"Chuck Cobb" <ch********@oxfordcorp.com> ha scritto nel messaggio
news:%2******************@TK2MSFTNGP02.phx.gbl...
I'm having a problem converting an array to a collection. The code I'm
using looks like the following:

CustomerInfo[] cArray;
Collection<CustomerInfo> cCollection = new
Collection<CustomerInfo>(cArray);

The above code creates a collection from the array but the collection
winds up as a read-only collection. Is there an easy way to convert an
array to a collection and have it not be read-only?


If you don't have particular reasons to use a Collection<T> try with a
List<T>

--

Free .Net Reporting Tool - http://www.neodatatype.net
Apr 14 '06 #2
On Fri, 14 Apr 2006 15:35:12 -0400, "Chuck Cobb" <ch********@oxfordcorp.com>
wrote:
I'm having a problem converting an array to a collection. The code I'm
using looks like the following:

CustomerInfo[] cArray;
Collection<CustomerInfo> cCollection = new Collection<CustomerInfo>(cArray);

The above code creates a collection from the array but the collection winds
up as a read-only collection. Is there an easy way to convert an array to a
collection and have it not be read-only?

Thanks,

Chuck Cobb

From the VS 2k5 help:

string[] input = { "Brachiosaurus",
"Amargasaurus",
"Mamenchisaurus" };
List<string> dinosaurs = new List<string>(input);

Good luck with your project,

Otis Mukinfus
http://www.arltex.com
http://www.tomchilders.com
Apr 15 '06 #3
Otis Mukinfus <ph***@emailaddress.com> wrote:
From the VS 2k5 help:

string[] input = { "Brachiosaurus",
"Amargasaurus",
"Mamenchisaurus" };
List<string> dinosaurs = new List<string>(input);


If you can cope with IList instead of List, you don't need a new array:

IList<string> dinosaurs = input;

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too
Apr 15 '06 #4
Thanks! Using a List instead of a Collection works great!

I have no idea why a Collection doesn't work the same way...I've reported
that as a potential bug to Microsoft.
"Chuck Cobb" <ch********@oxfordcorp.com> wrote in message
news:%2******************@TK2MSFTNGP02.phx.gbl...
I'm having a problem converting an array to a collection. The code I'm
using looks like the following:

CustomerInfo[] cArray;
Collection<CustomerInfo> cCollection = new
Collection<CustomerInfo>(cArray);

The above code creates a collection from the array but the collection
winds up as a read-only collection. Is there an easy way to convert an
array to a collection and have it not be read-only?

Thanks,

Chuck Cobb

Apr 15 '06 #5


Chuck Cobb wrote:
Thanks! Using a List instead of a Collection works great!


Arrays can convert to IList<T>, IList, ICollection<T> and ICollection,
so this code will work:

string[] fruits = {"apple", "orange"};
ICollection<string> x1 = fruits;
ICollection x2 = fruits;
IList<string> x3 = fruits;
IList x4 = fruits;

Arrays are even recusively convertible:

string[] veggies = {"carrot", "salad"}
string[][] baskets = { fruits, veggies };

ICollection<ICollection<string>> x5 = baskets;

--
Helge Jensen
mailto:he**********@slog.dk
sip:he**********@slog.dk
-=> Sebastian cover-music: http://ungdomshus.nu <=-
Apr 19 '06 #6

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

4
by: Clark Stevens | last post by:
I have a program that I'm converting from VB6 to VB.NET. It reads in a text file containing barcode numbers and their corresponding descriptions. Then the user enters the barcode number and the...
9
by: Terry | last post by:
I am converting (attempting) some vb6 code that makes vast use of interfaces. One of the major uses is to be able to split out Read-only access to an obect. Let me give you a simple (contrived)...
20
by: Gustaf | last post by:
This is two questions in one really. First, I wonder how to convert the values in a Dictionary to an array. Here's the dictionary: private Dictionary<Uri, Schemaschemas = new Dictionary<Uri,...
156
by: Lame Duck | last post by:
Hi Group! I have a vector<floatvariable that I need to pass to a function, but the function takes a float * arguement. That's OK, I can convert by doing &MyVector.front(), but when I get back a...
0
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
1
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
0
by: Hystou | last post by:
There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
0
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
0
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
0
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
0
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing,...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.