Copy ArrayList to String

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I have one ArrayList I want to make string ( May be comma seperated) how I can do this?
I dont want to use FOR loop.
Please help me.

Thanks in advance.

Posted 13-Jun-11 19:56pm

sushil_gupta

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3 solutions

Solution 3

use

string str = arr.Cast<string>().Aggregate((str1, str2) => str1 + "," + str2);

will give you comma seprated string but make sure that your arraylist contains all the string

Posted 13-Jun-11 20:51pm

nit_singh

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Dalek Dave 14-Jun-11 3:18am

5!

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Timberbird · Accepted Answer · 2011-06-13T20:28:00

Solution 2

Try something like

<br />
string[] sArray = (string[])pArrayList.ToArray(typeof(string));<br />
string Result = string.Join(sSeparator, sArray, 0, sArray.Length);<br />
<code>

Posted 13-Jun-11 20:28pm

Timberbird

Comments

sushil_gupta 14-Jun-11 2:48am

When I am tring this getting an error in first statement
InvalidCastException?

Timberbird 14-Jun-11 3:02am

You may get this exception if your ArrayList contains values other than strings. Is that the case? If yes, try changing the code above this way:


object[] pArray = pArrayList.ToArray();
string Result = string.Join(sSeparator, pArray);

Dalek Dave 14-Jun-11 3:18am

Good Call.

Abhinav S · Accepted Answer · 2011-06-13T20:02:00

Solution 1

Try System.String.Concat(myArrayList.ToArray());

Posted 13-Jun-11 20:02pm

Abhinav S

Updated 13-Jun-11 20:03pm

v2

Comments

sushil_gupta 14-Jun-11 2:49am

It worked. But it is combining all the value after the another.

Dalek Dave 14-Jun-11 3:18am

Good Answer