473,385 Members | 1,798 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,385 software developers and data experts.

Join an ArrayList

I need to join the elements of an arraylist into a comma delimited list and
have been doing the following

string[] x = new string[myArrayList.Count];
myArrayList.CopyTo(x);
string.join(",",x);

I tried string.join(",",myArrayList.ToArray(typeof(string) )); but the
compiler complained about converting from an object to a string array.

Is there another, i.e. shorter, way to do this?

Kev
Nov 17 '05 #1
3 21322
Did you try

String.Join(",", (string[])myArrayList.ToArray(typeof(string)));

?

Nov 17 '05 #2
Hi kevin,
I need to join the elements of an arraylist into a comma delimited
list and have been doing the following
I tried string.join(",",myArrayList.ToArray(typeof(string) )); but the
compiler complained about converting from an object to a string array.


ok, if you have an ArrayList then use this to
get a (joined) string "s" from it:

string s = string.Join(",", myArrayList.ToArray(typeof(string)) as
string[]);
ciao Frank
--
Dipl.Inf. Frank Dzaebel [MCP C#]
http://Dzaebel.NET

Nov 17 '05 #3
That did it. Thanks

"Frank Dzaebel" wrote:
Hi kevin,
I need to join the elements of an arraylist into a comma delimited
list and have been doing the following
I tried string.join(",",myArrayList.ToArray(typeof(string) )); but the
compiler complained about converting from an object to a string array.


ok, if you have an ArrayList then use this to
get a (joined) string "s" from it:

string s = string.Join(",", myArrayList.ToArray(typeof(string)) as
string[]);
ciao Frank
--
Dipl.Inf. Frank Dzaebel [MCP C#]
http://Dzaebel.NET

Nov 17 '05 #4

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

Similar topics

7
by: Alex Ting | last post by:
Hi Everybody, I have an issue about deleting an object from an arrayList. I've bounded a datagrid using this code where it will first run through all of the code in loadQuestions() and bind a...
3
by: Stephen | last post by:
I was wondering if someone can help me with an web application design problem. I have a aspx page which builds up an arraylist called addresses and outputs the values in the arraylist items to a...
6
by: gane kol | last post by:
Hi, I have a code that creates a datatable from an arraylist, but i am getting an error in casting in for (int intRow = 0; intRow < alLCPlist.Count; intRow++) { DataRow drow =...
4
by: Peter | last post by:
I run into this situation all the time and I'm wondering what is the most efficient way to handle this issue: I'll be pulling data out of a data source and want to load the data into an array so...
18
by: JohnR | last post by:
From reading the documentation, this should be a relatively easy thing. I have an arraylist of custom class instances which I want to search with an"indexof" where I'm passing an instance if the...
18
by: Sam | last post by:
Hi All I'm planing to write an application which allows users dynamically add their points (say you can add upto 30,000) and then draw xy graph. Should I use an array for my coordinate point...
6
by: fniles | last post by:
I am using VB.NET 2003 and a socket control to receive and sending data to clients. As I receive data in 1 thread, I put it into an arraylist, and then I remove the data from arraylist and send it...
3
by: Christopher H | last post by:
I've been reading about how C# passes ArrayLists as reference and Structs as value, but I still can't get my program to work like I want it to. Simple example: ...
1
by: =?Utf-8?B?SkI=?= | last post by:
Hello My pgm1 (User Interface Level) passes an empty ArrayList to pgm2 (Business Logic Level). pgm2 then calls pgm3 (Data Access Level) to populate the ArrayList. Question1: When pgm2 gets...
0
by: aa123db | last post by:
Variable and constants Use var or let for variables and const fror constants. Var foo ='bar'; Let foo ='bar';const baz ='bar'; Functions function $name$ ($parameters$) { } ...
0
by: ryjfgjl | last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
0
by: ryjfgjl | last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
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: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
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
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...

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.