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Posted By

ecavazos on 01/18/08

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array add append copyto

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Add Item to Array

Published in: C#

There may be a simpler way to do this but this is the only way I could find to solve this problem. There is no Add method for basic arrays.

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// Add an item to the end of an existing array
string[] ar1 = new string[] {"I", "Like", "To"}
 
// create a temporary array with an extra slot
// at the end
string[] ar2 = new string[ar1.Length + 1];
 
// add the contents of the ar1 to ar2
// at position 0
ar1.CopyTo(ar2, 0);
 
// add the desired value
ar2.SetValue("Code.", ar1.Length);
 
// overwrite ar1 with ar2 and voila!
// the contents of ar1 should now be {"I", "Like", "To", "Code."}
ar1 = ar2;

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Posted By: tsounth on January 19, 2008: Very nice!
Posted By: ptoutant on June 20, 2008: Array.Resize(ref ar1, ar1.Length + 1); Array.Copy(new object[] { "Code." }, 0, ar1, ar1.Length - 1, 1);

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