C# and arrays...

I need to join some arrays, how?

[joshie76]

How can I join a number of separate arrays using C# in .NET?

When I say join I mean take, for example, 2 arrays with 4 entries in each and combine them to become 1 array with 8 entries? Order is unimportant.

Thanks

J

[joshie76]

Well, in the end I wrote a function to do it though I'm sure there must be a better and faster way...

private string[] combineArrays(string[] arr1, string[] arr2) 
{ 
string[] combArray = new string[arr1.Length + arr2.Length]; 
for (int i=0; i < arr1.Length; i++) 
{ 
combArray[i] = arr1[i]; 
} 
for (int i=0; i < arr2.Length; i++) 
{ 
combArray[arr1.Length+i] = arr2[i]; 
} 
return combArray; 
}

[joshie76]

OK, getting there now!

The CopyTo method seems to be much quicker than for loop and manually rebuilding the array... now if I could just find a way to redimension the arr1 so that the first CopyTo is not needed....

private string[] combineArrays(string[] arr1, string[] arr2) 
{ 
 string[] combArray = new string[arr1.Length + arr2.Length]; 
 arr1.CopyTo(combArray,0); 
 arr2.CopyTo(combArray,arr1.Length); 
 return combArray; 
}