How to convert integer array to string array - C#

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How to convert integer array to string array

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hong

Posted: Monday, March 28, 2011 9:52:00 AM

Rank: Administration
Groups: Administration

Joined: 11/23/2008
Posts: 335
Points: 711
Location: Australia

I had a situation where I need to use a string array in sql where-in clause

Code:

strQuery = String.Format(strQuery, String.Join(",", stringArray)

I also need to convert an integer array to the string array. I did the conversion by iterating through the array.

If you don't want to do this way, there are other ways available from .net and linq:
1.
a)

Code:

//...
string[] stringArray =
Array.ConvertAll<int,string>
(intArray,new Converter<int,string>
(ConvertIntToString));
//...

private string ConvertIntToString(int intParameter)
{
return intParameter.ToString();
}

b) a compact form

Code:

string[] stringArray = Array.ConvertAll<int,string>(ids, delegate(int intParameter) {return intParameter.ToString();});

2. linq
a)

Code:

Array.ConvertAll<int, string>(INTARRAY, intParameter => intParamter.ToString());

Code:

var STRINGARRAY = INTARRAY.Select(s => s.ToString());

Code:

string[] stringArray = intArray.Select(i => i.ToString()).ToArray();

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Posted: Monday, March 28, 2011 9:52:00 AM

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